CHANGELOG.md

<a name="5.0.0-beta.3"></a>
# [5.0.0-beta.3](https://github.com/angular/angular/compare/5.0.0-beta.2...5.0.0-beta.3) (2017-08-09)


### Bug Fixes

* **animations:** revert container/queried animations accordingly during cancel ([#18516](https://github.com/angular/angular/issues/18516)) ([c0c03dc](https://github.com/angular/angular/commit/c0c03dc))
* **animations:** support persisting dynamic styles within animation states ([#18468](https://github.com/angular/angular/issues/18468)) ([05472cb](https://github.com/angular/angular/commit/05472cb)), closes [#18423](https://github.com/angular/angular/issues/18423) [#17505](https://github.com/angular/angular/issues/17505)
* **benchpress:** compile cleanly with TS 2.4 ([#18455](https://github.com/angular/angular/issues/18455)) ([e25b3dd](https://github.com/angular/angular/commit/e25b3dd))
* **common:** don't recreate view when context shape doesn't change ([#18277](https://github.com/angular/angular/issues/18277)) ([685cc26](https://github.com/angular/angular/commit/685cc26)), closes [#13407](https://github.com/angular/angular/issues/13407)
* **compiler:** cleanly compile with TypeScript 2.4 ([#18456](https://github.com/angular/angular/issues/18456)) ([7c47b62](https://github.com/angular/angular/commit/7c47b62))
* **compiler:** ignore [@import](https://github.com/import) in multi-line css ([#18452](https://github.com/angular/angular/issues/18452)) ([1dca575](https://github.com/angular/angular/commit/1dca575)), closes [#18038](https://github.com/angular/angular/issues/18038)
* **compiler-cli:** disable buggy expression lowering ([#18513](https://github.com/angular/angular/issues/18513)) ([ca695e0](https://github.com/angular/angular/commit/ca695e0))
* **compiler-cli:** fix and re-enable expression lowering ([#18570](https://github.com/angular/angular/issues/18570)) ([6f2038c](https://github.com/angular/angular/commit/6f2038c)), closes [#18388](https://github.com/angular/angular/issues/18388)
* **compiler-cli:** modified ngc to throw all errors, not just syntax ([#18388](https://github.com/angular/angular/issues/18388)) ([5651e4a](https://github.com/angular/angular/commit/5651e4a))
* **compiler-cli:** remove minimist dependency of compiler-cli/index ([#18532](https://github.com/angular/angular/issues/18532)) ([5b7432b](https://github.com/angular/angular/commit/5b7432b))
* **core:** fix platform-browser-dynamic ([#18576](https://github.com/angular/angular/issues/18576)) ([f0a5501](https://github.com/angular/angular/commit/f0a5501))
* **core:** forbid destroyed views to be inserted or moved in VC ([#18568](https://github.com/angular/angular/issues/18568)) ([e54bd59](https://github.com/angular/angular/commit/e54bd59)), closes [#17780](https://github.com/angular/angular/issues/17780)

### Features

* **core:** Create StaticInjector which does not depend on Reflect polyfill. ([d9d00bd](https://github.com/angular/angular/commit/d9d00bd))
* **forms:** add default updateOn values for groups and arrays ([#18536](https://github.com/angular/angular/issues/18536)) ([ff5c58b](https://github.com/angular/angular/commit/ff5c58b))
* **forms:** add updateOn blur option to FormControls ([#18408](https://github.com/angular/angular/issues/18408)) ([333a708](https://github.com/angular/angular/commit/333a708)), closes [#7113](https://github.com/angular/angular/issues/7113)
* **forms:** add updateOn submit option to FormControls ([#18514](https://github.com/angular/angular/issues/18514)) ([f69561b](https://github.com/angular/angular/commit/f69561b))

### Performance Improvements

* switch angular to use StaticInjector instead of ReflectiveInjector ([fcadbf4](https://github.com/angular/angular/commit/fcadbf4)), closes [#18496](https://github.com/angular/angular/issues/18496)


### BREAKING CHANGES

* `platformXXXX()` no longer accepts providers which depend on reflection.
Specifically the method signature when from `Provider[]` to
`StaticProvider[]`.

Example:
Before:
```
[
  MyClass,
  {provide: ClassA, useClass: SubClassA}
]

```

After:
```
[
  {provide: MyClass, deps: [Dep1,...]},
  {provide: ClassA, useClass: SubClassA, deps: [Dep1,...]}
]
```

NOTE: This only applies to platform creation and providers for the JIT
compiler. It does not apply to `@Component` or `@NgModule` provides
declarations.

Benchpress note: Previously Benchpress also supported reflective
provides, which now require static providers.

DEPRECATION:

- `ReflectiveInjector` is now deprecated as it will be remove. Use
  `Injector.create` as a replacement.

<a name="5.0.0-beta.2"></a>
# [5.0.0-beta.2](https://github.com/angular/angular/compare/5.0.0-beta.1...5.0.0-beta.2) (2017-08-02)


### Bug Fixes

* **compiler:** do not consider arguments when determining recursion ([e64b54b](https://github.com/angular/angular/commit/e64b54b))
* **compiler:** fix for element needing implicit parent placed in top-level ng-container ([381471d](https://github.com/angular/angular/commit/381471d)), closes [#18314](https://github.com/angular/angular/issues/18314)


### Features

* **forms:** add options arg to abstract controls ([ebef5e6](https://github.com/angular/angular/commit/ebef5e6))
* **router:** add events tracking activation of individual routes ([49cd851](https://github.com/angular/angular/commit/49cd851))



<a name="4.3.3"></a>
## [4.3.3](https://github.com/angular/angular/compare/4.3.2...4.3.3) (2017-08-02)


### Bug Fixes

* **compiler:** fix for element needing implicit parent placed in top-level ng-container ([f5cbc2e](https://github.com/angular/angular/commit/f5cbc2e)), closes [#18314](https://github.com/angular/angular/issues/18314)



<a name="5.0.0-beta.1"></a>
# [5.0.0-beta.1](https://github.com/angular/angular/compare/5.0.0-beta.0...5.0.0-beta.1) (2017-07-27)


### Bug Fixes

* **animations:** export BrowserModule as apart of BrowserAnimationsModule ([#18263](https://github.com/angular/angular/issues/18263)) ([fd0cc01](https://github.com/angular/angular/commit/fd0cc01))
* **compiler:** add equiv & disp attributes to Xliff2 ICU placeholders ([#18283](https://github.com/angular/angular/issues/18283)) ([38ec05f](https://github.com/angular/angular/commit/38ec05f)), closes [#17344](https://github.com/angular/angular/issues/17344)
* **compiler:** allow numbers for ICU message cases in lexer ([#18095](https://github.com/angular/angular/issues/18095)) ([a3a5429](https://github.com/angular/angular/commit/a3a5429)), closes [#17799](https://github.com/angular/angular/issues/17799)
* **core:** invoke error handler outside of the Angular Zone ([#18269](https://github.com/angular/angular/issues/18269)) ([7ae7573](https://github.com/angular/angular/commit/7ae7573)), closes [#17073](https://github.com/angular/angular/issues/17073) [#7774](https://github.com/angular/angular/issues/7774)
* **platform-server:** don't clobber parse5 properties when setting ([#18237](https://github.com/angular/angular/issues/18237)) ([a094769](https://github.com/angular/angular/commit/a094769)), closes [#17050](https://github.com/angular/angular/issues/17050)
* **router:** child CanActivate guard should wait for parent to complete ([#18110](https://github.com/angular/angular/issues/18110)) ([086f4aa](https://github.com/angular/angular/commit/086f4aa)), closes [#15670](https://github.com/angular/angular/issues/15670)
* **router:** should throw when lazy loaded module doesn't define any routes ([#15001](https://github.com/angular/angular/issues/15001)) ([82923a3](https://github.com/angular/angular/commit/82923a3)), closes [#14596](https://github.com/angular/angular/issues/14596)
* **upgrade:** ensure downgraded components are created in the Angular zone ([#18209](https://github.com/angular/angular/issues/18209)) ([43c33d5](https://github.com/angular/angular/commit/43c33d5))
* **upgrade:** throw error if trying to get injector before setting ([#18209](https://github.com/angular/angular/issues/18209)) ([d31dc7b](https://github.com/angular/angular/commit/d31dc7b))


### Features

* **compiler:** add representation of placeholders to xliff & xmb ([b3085e9](https://github.com/angular/angular/commit/b3085e9)), closes [#17345](https://github.com/angular/angular/issues/17345)


### Performance Improvements

* latest tsickle to tree shake: abstract class methods & interfaces ([#18236](https://github.com/angular/angular/issues/18236)) ([b7a6f52](https://github.com/angular/angular/commit/b7a6f52))
* **core:** use native addEventListener for faster rendering. ([#18107](https://github.com/angular/angular/issues/18107)) ([6279e50](https://github.com/angular/angular/commit/6279e50))



<a name="4.3.2"></a>
## [4.3.2](https://github.com/angular/angular/compare/4.3.1...4.3.2) (2017-07-26)


### Bug Fixes

* **animations:** export BrowserModule as apart of BrowserAnimationsModule ([#18263](https://github.com/angular/angular/issues/18263)) ([cbeb197](https://github.com/angular/angular/commit/cbeb197))
* **compiler:** add equiv & disp attributes to Xliff2 ICU placeholders ([#18283](https://github.com/angular/angular/issues/18283)) ([a084619](https://github.com/angular/angular/commit/a084619)), closes [#17344](https://github.com/angular/angular/issues/17344)
* **compiler:** allow numbers for ICU message cases in lexer ([#18095](https://github.com/angular/angular/issues/18095)) ([a8ac77b](https://github.com/angular/angular/commit/a8ac77b)), closes [#17799](https://github.com/angular/angular/issues/17799)
* **core:** invoke error handler outside of the Angular Zone ([#18269](https://github.com/angular/angular/issues/18269)) ([a1bb9c2](https://github.com/angular/angular/commit/a1bb9c2)), closes [#17073](https://github.com/angular/angular/issues/17073) [#7774](https://github.com/angular/angular/issues/7774)
* **platform-server:** don't clobber parse5 properties when setting ([#18237](https://github.com/angular/angular/issues/18237)) ([97135e8](https://github.com/angular/angular/commit/97135e8)), closes [#17050](https://github.com/angular/angular/issues/17050)
* **router:** child CanActivate guard should wait for parent to complete ([#18110](https://github.com/angular/angular/issues/18110)) ([b9e32c8](https://github.com/angular/angular/commit/b9e32c8)), closes [#15670](https://github.com/angular/angular/issues/15670)
* **router:** should throw when lazy loaded module doesn't define any routes ([#15001](https://github.com/angular/angular/issues/15001)) ([be49e0e](https://github.com/angular/angular/commit/be49e0e)), closes [#14596](https://github.com/angular/angular/issues/14596)
* **upgrade:** throw error if trying to get injector before setting ([#18209](https://github.com/angular/angular/issues/18209)) ([1f106d7](https://github.com/angular/angular/commit/1f106d7))



<a name="5.0.0-beta.0"></a>
# [5.0.0-beta.0](https://github.com/angular/angular/compare/4.3.0...5.0.0-beta.0) (2017-07-19)


### Bug Fixes

* **animations:** always camelcase style property names that contain auto styles ([d22f8f5](https://github.com/angular/angular/commit/d22f8f5)), closes [#17938](https://github.com/angular/angular/issues/17938)
* **animations:** capture cancelled animation styles within grouped animations ([23146c9](https://github.com/angular/angular/commit/23146c9)), closes [#17170](https://github.com/angular/angular/issues/17170)
* **animations:** do not crash animations if a nested component fires CD during CD ([5db6f38](https://github.com/angular/angular/commit/5db6f38)), closes [#18193](https://github.com/angular/angular/issues/18193)
* **animations:** make sure @.disabled works in non-animation components ([5344be5](https://github.com/angular/angular/commit/5344be5))
* **common:** send flushed body as error instead of null ([5c62e30](https://github.com/angular/angular/commit/5c62e30)), closes [#18181](https://github.com/angular/angular/issues/18181)
* **compiler:** ensure jit external id arguments names are unique ([95635c1](https://github.com/angular/angular/commit/95635c1))
* **compiler-cli:** don't generate empty <target/> when extracting xliff ([65c9e13](https://github.com/angular/angular/commit/65c9e13)), closes [#15754](https://github.com/angular/angular/issues/15754)
* **platform-server:** provide XhrFactory for HttpClient ([8076482](https://github.com/angular/angular/commit/8076482))
* **router:** canDeactivate guards should run from bottom to top ([e20cfe1](https://github.com/angular/angular/commit/e20cfe1)), closes [#15657](https://github.com/angular/angular/issues/15657)
* **router:** should navigate to the same url when config changes ([eb6fb5f](https://github.com/angular/angular/commit/eb6fb5f)), closes [#15535](https://github.com/angular/angular/issues/15535)
* **router:** should run resolvers for the same route concurrently ([ad3029e](https://github.com/angular/angular/commit/ad3029e)), closes [#14279](https://github.com/angular/angular/issues/14279)
* **router:** terminal route in custom matcher ([b399cb2](https://github.com/angular/angular/commit/b399cb2))
* **upgrade:** allow accessing AngularJS injector from downgraded module ([a5205c6](https://github.com/angular/angular/commit/a5205c6))


### Features

* **animations:** support :increment and :decrement transition aliases ([6f45519](https://github.com/angular/angular/commit/6f45519))
* **upgrade:** propagate touched state of NgModelController ([59c23c7](https://github.com/angular/angular/commit/59c23c7))
* **upgrade:** support lazy-loading Angular module into AngularJS app ([30e76fc](https://github.com/angular/angular/commit/30e76fc))



<a name="4.3.1"></a>
## [4.3.1](https://github.com/angular/angular/compare/4.3.0...4.3.1) (2017-07-19)


### Bug Fixes

* **animations:** always camelcase style property names that contain auto styles ([383d896](https://github.com/angular/angular/commit/383d896)), closes [#17938](https://github.com/angular/angular/issues/17938)
* **animations:** capture cancelled animation styles within grouped animations ([333ffd8](https://github.com/angular/angular/commit/333ffd8)), closes [#17170](https://github.com/angular/angular/issues/17170)
* **animations:** do not crash animations if a nested component fires CD during CD ([4c1f32b](https://github.com/angular/angular/commit/4c1f32b)), closes [#18193](https://github.com/angular/angular/issues/18193)
* **animations:** make sure @.disabled works in non-animation components ([a5c4bb5](https://github.com/angular/angular/commit/a5c4bb5))
* **common:** send flushed body as error instead of null ([17b7bc3](https://github.com/angular/angular/commit/17b7bc3)), closes [#18181](https://github.com/angular/angular/issues/18181)
* **compiler:** ensure jit external id arguments names are unique ([4671168](https://github.com/angular/angular/commit/4671168))
* **compiler-cli:** don't generate empty `<target/>` when extracting xliff ([f0476fc](https://github.com/angular/angular/commit/f0476fc)), closes [#15754](https://github.com/angular/angular/issues/15754)
* **platform-server:** provide XhrFactory for HttpClient ([4ce29f3](https://github.com/angular/angular/commit/4ce29f3))
* **router:** canDeactivate guards should run from bottom to top ([1ac78bf](https://github.com/angular/angular/commit/1ac78bf)), closes [#15657](https://github.com/angular/angular/issues/15657)
* **router:** should navigate to the same url when config changes ([4340bea](https://github.com/angular/angular/commit/4340bea)), closes [#15535](https://github.com/angular/angular/issues/15535)
* **router:** should run resolvers for the same route concurrently ([ec89f37](https://github.com/angular/angular/commit/ec89f37)), closes [#14279](https://github.com/angular/angular/issues/14279)
* **router:** terminal route in custom matcher ([5d275e9](https://github.com/angular/angular/commit/5d275e9))



<a name="4.3.0"></a>
# [4.3.0](https://github.com/angular/angular/compare/4.3.0-rc.0...4.3.0) (2017-07-14)


### Bug Fixes

* **animations:** do not delay style() values before a stagger() runs ([34f3832](https://github.com/angular/angular/commit/34f3832)), closes [#17412](https://github.com/angular/angular/issues/17412)
* **animations:** do not remove container nodes when children are queried by a parent animation ([d699c35](https://github.com/angular/angular/commit/d699c35)), closes [#17746](https://github.com/angular/angular/issues/17746)
* **animations:** do not validate style overlap errors in different transitions ([f2ee1dc](https://github.com/angular/angular/commit/f2ee1dc))
* **animations:** properly collect :enter nodes that exist within multi-level DOM trees ([40f77cb](https://github.com/angular/angular/commit/40f77cb)), closes [#17632](https://github.com/angular/angular/issues/17632)
* **animations:** compute removal node height correctly ([185075d](https://github.com/angular/angular/commit/185075d))
* **animations:** do not treat a `0` animation state as `void` ([451257a](https://github.com/angular/angular/commit/451257a))
* **animations:** properly collect :enter nodes in a partially updated collection ([6ca4692](https://github.com/angular/angular/commit/6ca4692)), closes [#17440](https://github.com/angular/angular/issues/17440)
* **animations:** remove duplicate license header ([e096a85](https://github.com/angular/angular/commit/e096a85))
* **common/http:** document HttpClient, fixing a few other issues ([1855989](https://github.com/angular/angular/commit/1855989))
* **common/http:** don't guess Content-Type for FormData bodies ([#18104](https://github.com/angular/angular/issues/18104)) ([4f1e4ff](https://github.com/angular/angular/commit/4f1e4ff)), closes [#18096](https://github.com/angular/angular/issues/18096)
* **common/http:** expose reportProgress option on HttpClient API ([#18083](https://github.com/angular/angular/issues/18083)) ([9f28e83](https://github.com/angular/angular/commit/9f28e83))
* **common/http:** rename HttpXsrfModule to HttpClientXsrfModule ([3ecc5e5](https://github.com/angular/angular/commit/3ecc5e5))
* **compiler:** avoid emitting self importing factories ([4352dd2](https://github.com/angular/angular/commit/4352dd2))
* **compiler-cli:** find lazy routes in nested module import arrays ([8c89cc4](https://github.com/angular/angular/commit/8c89cc4))
* **core:** add needed closure compiler warning suppression ([e80851d](https://github.com/angular/angular/commit/e80851d))
* **core:** argument destructuring sometimes breaks strictNullChecks ([c59c390](https://github.com/angular/angular/commit/c59c390))
* **language-service:** infer `any` `ngForOf` of type `any` ([f194f18](https://github.com/angular/angular/commit/f194f18))
* **language-service:** rollup `tslib` into the language service package ([4e6be15](https://github.com/angular/angular/commit/4e6be15))
* **router:** fix outdated homepage url in NPM package ([#17899](https://github.com/angular/angular/issues/17899)) ([df06e8b](https://github.com/angular/angular/commit/df06e8b))
* **router:** update the version placeholder so that it gets replaced during the build ([d3c92a3](https://github.com/angular/angular/commit/d3c92a3)), closes [#17403](https://github.com/angular/angular/issues/17403)
* **tsc-wrapped:** report errors for invalid ast forms ([#17994](https://github.com/angular/angular/issues/17994)) ([ce0f4f0](https://github.com/angular/angular/commit/ce0f4f0))
* **tsc-wrapped:** support as and class expressions ([#16904](https://github.com/angular/angular/issues/16904)) ([45ffe54](https://github.com/angular/angular/commit/45ffe54))
* **tsc-wrapped:** skip collecting metadata for default functions ([46ddf50](https://github.com/angular/angular/commit/46ddf50))
* **upgrade:** bring the dynamic version closer to the static one ([11db3bd](https://github.com/angular/angular/commit/11db3bd)), closes [#16627](https://github.com/angular/angular/issues/16627) [#11044](https://github.com/angular/angular/issues/11044)



### Features

* **animations:** support disabling animations for sub elements ([8e28382](https://github.com/angular/angular/commit/8e28382)), closes [#16483](https://github.com/angular/angular/issues/16483)
* **common/http:** new HttpClient API ([37797e2](https://github.com/angular/angular/commit/37797e2))
* **common/http:** on-by-default XSRF support in HttpClient ([#18108](https://github.com/angular/angular/issues/18108)) ([dd04f09](https://github.com/angular/angular/commit/dd04f09)), closes [#18100](https://github.com/angular/angular/issues/18100)
* **compiler:** adds support for quoted object keys in the parser ([798947e](https://github.com/angular/angular/commit/798947e))
* **compiler:** do not evaluate metadata expressions that can use references ([#18001](https://github.com/angular/angular/issues/18001)) ([ddb766e](https://github.com/angular/angular/commit/ddb766e))
* **compiler:** update the schema by extracting from latest chrome ([#17858](https://github.com/angular/angular/issues/17858)) ([dd7c113](https://github.com/angular/angular/commit/dd7c113))
* **compiler:** add support `::ng-deep` ([b754e60](https://github.com/angular/angular/commit/b754e60))
* **compiler-cli:** add parameters to ngc main needed by bazel rules ([#17885](https://github.com/angular/angular/issues/17885)) ([c1474f3](https://github.com/angular/angular/commit/c1474f3))
* **compiler-cli:** new compiler api and command-line using TypeScript transformers ([3097083](https://github.com/angular/angular/commit/3097083))
* **core:** update zone.js to 0.8.12 ([5ac3919](https://github.com/angular/angular/commit/5ac3919))
* **router:** add router-level events for GuardsCheck and Resolve ([#17601](https://github.com/angular/angular/issues/17601)) ([8a1a989](https://github.com/angular/angular/commit/8a1a989))
* **upgrade:** fix support for `directive.link` in upgraded components ([0193be7](https://github.com/angular/angular/commit/0193be7))




<a name="4.2.6"></a>
## [4.2.6](https://github.com/angular/angular/compare/4.2.5...4.2.6) (2017-07-08)


### Bug Fixes

* **animations:** ensure `:animating` queries collect previous animation elements properly ([d48b7d3](https://github.com/angular/angular/commit/d48b7d3))
* **animations:** properly cleanup query artificats when animation construction fails ([00de9ff](https://github.com/angular/angular/commit/00de9ff))
* **animations:** properly detect state transition changes for object literals ([00c9741](https://github.com/angular/angular/commit/00c9741))
* **animations:** properly handle cancelled animation style application ([cf57527](https://github.com/angular/angular/commit/cf57527))
* **compiler:** emits quoted keys only if they are quoted in the original template ([45ae14c](https://github.com/angular/angular/commit/45ae14c)), closes [#14292](https://github.com/angular/angular/issues/14292)
* **compiler:** fix merge error ([6307581](https://github.com/angular/angular/commit/6307581))
* **compiler:** fix types ([5ea9b62](https://github.com/angular/angular/commit/5ea9b62))
* **compiler:** remove i18n markup even if no translations ([#17999](https://github.com/angular/angular/issues/17999)) ([2763577](https://github.com/angular/angular/commit/2763577)), closes [#11042](https://github.com/angular/angular/issues/11042)
* **compiler-cli:** fix relative source paths on windows for extracted msg ([#17915](https://github.com/angular/angular/issues/17915)) ([991f8ad](https://github.com/angular/angular/commit/991f8ad)), closes [#16639](https://github.com/angular/angular/issues/16639)
* **core:** fix re-insertions in the iterable differ ([#17891](https://github.com/angular/angular/issues/17891)) ([a318093](https://github.com/angular/angular/commit/a318093)), closes [#17852](https://github.com/angular/angular/issues/17852)
* **language-service:** do not crash when hovering over a label definitions ([#17974](https://github.com/angular/angular/issues/17974)) ([2ab9057](https://github.com/angular/angular/commit/2ab9057))
* **language-service:** ignore hover of symbols not in the TypeScript program ([#17969](https://github.com/angular/angular/issues/17969)) ([fe09e10](https://github.com/angular/angular/commit/fe09e10))
* **router:** encode URLs the same way AngularJS did (closer to spec) ([#17890](https://github.com/angular/angular/issues/17890)) ([8f7cce3](https://github.com/angular/angular/commit/8f7cce3)), closes [#16067](https://github.com/angular/angular/issues/16067)
* **router:** export missing UrlMatcher and UrlMatchResult types ([12a2099](https://github.com/angular/angular/commit/12a2099)), closes [#15140](https://github.com/angular/angular/issues/15140)
* **tsc-wrapped:** emit exports metadata in flat modules ([#17893](https://github.com/angular/angular/issues/17893)) ([ee7d134](https://github.com/angular/angular/commit/ee7d134))
* **upgrade:** fix transclusion on upgraded components ([#17971](https://github.com/angular/angular/issues/17971)) ([5337874](https://github.com/angular/angular/commit/5337874)), closes [#13271](https://github.com/angular/angular/issues/13271)
* **upgrade:** fix transclusion on upgraded components ([#17971](https://github.com/angular/angular/issues/17971)) ([30beb52](https://github.com/angular/angular/commit/30beb52)), closes [#13271](https://github.com/angular/angular/issues/13271)


### Performance Improvements

* **core:** refactor NgZone, decrease size by 1.2Kb ([#17773](https://github.com/angular/angular/issues/17773)) ([6d55a80](https://github.com/angular/angular/commit/6d55a80))



<a name="4.2.5"></a>
## [4.2.5](https://github.com/angular/angular/compare/4.2.4...4.2.5) (2017-06-29)


### Bug Fixes

* **animations:** do not delay style() values before a stagger() runs ([7559b78](https://github.com/angular/angular/commit/7559b78)), closes [#17412](https://github.com/angular/angular/issues/17412)
* **animations:** do not remove container nodes when children are queried by a parent animation ([ec4ae60](https://github.com/angular/angular/commit/ec4ae60)), closes [#17746](https://github.com/angular/angular/issues/17746)
* **animations:** do not validate style overlap errors in different transitions ([6909171](https://github.com/angular/angular/commit/6909171))
* **animations:** properly collect :enter nodes that exist within multi-level DOM trees ([79b6346](https://github.com/angular/angular/commit/79b6346)), closes [#17632](https://github.com/angular/angular/issues/17632)
* **core:** add needed closure compiler warning suppression ([f31b0d6](https://github.com/angular/angular/commit/f31b0d6))



<a name="4.2.4"></a>
## [4.2.4](https://github.com/angular/angular/compare/4.2.3...4.2.4) (2017-06-21)


### Bug Fixes

* **compiler:** avoid emitting self importing factories ([c112232](https://github.com/angular/angular/commit/c112232))
* **compiler-cli:** find lazy routes in nested module import arrays ([59299de](https://github.com/angular/angular/commit/59299de))
* **core**: argument destructuring sometimes breaks strictNullChecks ([77860a0](https://github.com/angular/angular/commit/77860a0))
* **forms:** roll back breaking change with min/max directives ([4ab7353](https://github.com/angular/angular/commit/4ab7353)), closes [#17491](https://github.com/angular/angular/issues/17491)
* **language-service:** infer `any` `ngForOf` of type `any` ([63a5f33](https://github.com/angular/angular/commit/63a5f33))
* **language-service:** rollup `tslib` into the language service package ([20eb5cf](https://github.com/angular/angular/commit/20eb5cf))
* **router:** update the version placeholder so that it gets replaced during the build ([7de1ae2](https://github.com/angular/angular/commit/7de1ae2)), closes [#17403](https://github.com/angular/angular/issues/17403)
* **tsc-wrapped:** skip collecting metadata for default functions ([3390648](https://github.com/angular/angular/commit/3390648))



<a name="4.2.3"></a>
## [4.2.3](https://github.com/angular/angular/compare/4.2.1...4.2.3) (2017-06-16)


### Bug Fixes

* **animations:** compute removal node height correctly ([185075d](https://github.com/angular/angular/commit/185075d))
* **animations:** do not treat a `0` animation state as `void` ([451257a](https://github.com/angular/angular/commit/451257a))
* **animations:** properly collect :enter nodes in a partially updated collection ([6ca4692](https://github.com/angular/angular/commit/6ca4692)), closes [#17440](https://github.com/angular/angular/issues/17440)
* **animations:** remove duplicate license header ([b192dd5](https://github.com/angular/angular/commit/b192dd5))
* **forms:** temp roll back breaking change with min/max directives ([b8c39cd](https://github.com/angular/angular/commit/b8c39cd)), closes [#17491](https://github.com/angular/angular/issues/17491)



<a name="4.2.2"></a>
## [4.2.2](https://github.com/angular/angular/compare/4.2.1...4.2.2) (2017-06-12)


### Bug Fixes

* **animations:** compute removal node height correctly ([185075d](https://github.com/angular/angular/commit/185075d))
* **animations:** do not treat a `0` animation state as `void` ([451257a](https://github.com/angular/angular/commit/451257a))
* **animations:** properly collect :enter nodes in a partially updated collection ([6ca4692](https://github.com/angular/angular/commit/6ca4692)), closes [#17440](https://github.com/angular/angular/issues/17440)
* **compiler:** don’t always compile `.ngfactory.ts` files by default ([ed73d4f](https://github.com/angular/angular/commit/ed73d4f3ac6b542bf5ea3eb73fbe91e2ceabcdb4))



<a name="4.2.1"></a>
## [4.2.1](https://github.com/angular/angular/compare/4.2.0-rc.2...4.2.1) (2017-06-09)


### Bug Fixes


* **compiler:** don’t write summaries for jit by default ([d3a5f1a](https://github.com/angular/angular/commit/d3a5f1a))
* **http:** move destructuring inside {Request,Response}Options ctor ([c2d31fb](https://github.com/angular/angular/commit/c2d31fb)), closes [#16663](https://github.com/angular/angular/issues/16663)



<a name="4.2.0"></a>
# [4.2.0](https://github.com/angular/angular/compare/4.2.0-rc.2...4.2.0) salubrious-stratagem (2017-06-08)


### Bug Fixes

* **animations:** ensure web-animations understands a numeric CSS perspective value ([819514a](https://github.com/angular/angular/commit/819514a)), closes [#14007](https://github.com/angular/angular/issues/14007)
* **animations:** evaluate substitutions on option param values ([e9886d7](https://github.com/angular/angular/commit/e9886d7))
* **forms:** fix min and max validator behavior on non-numbers ([a222c3e](https://github.com/angular/angular/commit/a222c3e))
* **router:** opening links in new window ([4c32cb9](https://github.com/angular/angular/commit/4c32cb9))
* **upgrade:** call setInterval outside the Angular zone ([269bbe0](https://github.com/angular/angular/commit/269bbe0))


### Features

* **compiler-cli:** introduce synchronous codegen API ([b00b80a](https://github.com/angular/angular/commit/b00b80a))


### Performance Improvements

* **animations:** do not create a closure each time a node is removed ([fe6b39d](https://github.com/angular/angular/commit/fe6b39d))
* **animations:** only apply `:leave` flags if animations are set to run ([b55adee](https://github.com/angular/angular/commit/b55adee))



<a name="4.2.0-rc.2"></a>
# [4.2.0-rc.2](https://github.com/angular/angular/compare/4.2.0-rc.1...4.2.0-rc.2) (2017-06-01)

### Bug Fixes

* **animations:** always change to desired animation state even if no transition fires ([#17025](https://github.com/angular/angular/issues/17025)) ([665e707](https://github.com/angular/angular/commit/665e707)), closes [#16947](https://github.com/angular/angular/issues/16947)
* **animations:** do not retain deleted nodes during an non-removal animation ([#17153](https://github.com/angular/angular/issues/17153)) ([068133e](https://github.com/angular/angular/commit/068133e)), closes [#17086](https://github.com/angular/angular/issues/17086)
* **common:** always use 'other' case for locales with no plural rules ([#16990](https://github.com/angular/angular/issues/16990)) ([535d9da](https://github.com/angular/angular/commit/535d9da))
* **compiler:** enableLegacyTemplate should not be ignored ([#17051](https://github.com/angular/angular/issues/17051)) ([8ffa483](https://github.com/angular/angular/commit/8ffa483)), closes [#15555](https://github.com/angular/angular/issues/15555)
* **router:** make remove trailing slash consistent with URL params ([c20f60b](https://github.com/angular/angular/commit/c20f60b)), closes [#16069](https://github.com/angular/angular/issues/16069)

### Features

* **compiler:** emit typescript nodes from an output ast ([#16823](https://github.com/angular/angular/issues/16823)) ([18bf772](https://github.com/angular/angular/commit/18bf772))
* **compiler-cli:** produce template diagnostics error messages ([#17125](https://github.com/angular/angular/issues/17125)) ([230255f](https://github.com/angular/angular/commit/230255f))
* **tsc-wrapped:** always convert shorthand imports ([#16898](https://github.com/angular/angular/issues/16898)) ([ea8a43d](https://github.com/angular/angular/commit/ea8a43d))

### Performance Improvements

* **animations:** do not place enterId values on elements for querying purposes ([#17150](https://github.com/angular/angular/issues/17150)) ([ad6a57e](https://github.com/angular/angular/commit/ad6a57e))

<a name="4.2.0-rc.1"></a>
# [4.2.0-rc.1](https://github.com/angular/angular/compare/4.2.0-rc.0...4.2.0-rc.1) (2017-05-26)

### Bug Fixes

* **animations:** repair flicker issues with WA polyfill ([#16937](https://github.com/angular/angular/issues/16937)) ([e7d9fd8](https://github.com/angular/angular/commit/e7d9fd8)), closes [#16919](https://github.com/angular/angular/issues/16919) [#16918](https://github.com/angular/angular/issues/16918)
* **animations:** use a lightweight renderer for non-animation components ([#17003](https://github.com/angular/angular/issues/17003)) ([3ab86bd](https://github.com/angular/angular/commit/3ab86bd))
* **compiler:** compile `.ngfactory.ts` files even if nobody references them. ([#16899](https://github.com/angular/angular/issues/16899)) ([573b861](https://github.com/angular/angular/commit/573b861)), closes [#16741](https://github.com/angular/angular/issues/16741)
* **compiler:** do not report type errors for arguments with `@Inject` ([#16222](https://github.com/angular/angular/issues/16222)) ([27761b4](https://github.com/angular/angular/commit/27761b4)), closes [#15424](https://github.com/angular/angular/issues/15424)
* **core:** make decorators closure safe ([#16905](https://github.com/angular/angular/issues/16905)) ([a80ac0a](https://github.com/angular/angular/commit/a80ac0a)), closes [#16889](https://github.com/angular/angular/issues/16889)
* **tsc-wrapped:** ignore `|null` and `|undefined` when collecting types ([#16222](https://github.com/angular/angular/issues/16222)) ([1651a8f](https://github.com/angular/angular/commit/1651a8f))
* **tsc-wrapped:** resolve short-hand literal values to locals ([#16873](https://github.com/angular/angular/issues/16873)) ([11c10b2](https://github.com/angular/angular/commit/11c10b2))


### Features

* **compiler:** add location note to extracted xliff2 files ([#16791](https://github.com/angular/angular/issues/16791)) ([08dfe91](https://github.com/angular/angular/commit/08dfe91)), closes [#16531](https://github.com/angular/angular/issues/16531)
* **core:** update zone.js to 0.8.10 and expose the flush method ([#16860](https://github.com/angular/angular/issues/16860)) ([85d4c4b](https://github.com/angular/angular/commit/85d4c4b))
* **tsc-wrapped:** support template literals in metadata collection ([#16880](https://github.com/angular/angular/issues/16880)) ([6e41add](https://github.com/angular/angular/commit/6e41add))



<a name="4.2.0-rc.0"></a>
# [4.2.0-rc.0](https://github.com/angular/angular/compare/4.2.0-beta.0...4.2.0-rc.0) (2017-05-19)


### Bug Fixes

* **animations:** make sure reusable animation substitutions work without default params ([#16875](https://github.com/angular/angular/issues/16875)) ([7d9f96a](https://github.com/angular/angular/commit/7d9f96a))
* **animations:** only require one flushMicrotasks call when testing animations ([6cb93c1](https://github.com/angular/angular/commit/6cb93c1))
* **compiler:** avoid a `...null` spread in extraction ([#16547](https://github.com/angular/angular/issues/16547)) ([e0a8376](https://github.com/angular/angular/commit/e0a8376))
* **compiler-cli:** allow '==' to compare nullable types ([#16731](https://github.com/angular/angular/issues/16731)) ([d761059](https://github.com/angular/angular/commit/d761059))
* **core:** detach projected views when a parent view is destroyed ([#16592](https://github.com/angular/angular/issues/16592)) ([f0f6544](https://github.com/angular/angular/commit/f0f6544)), closes [#15578](https://github.com/angular/angular/issues/15578)
* **core:** projected views should be dirty checked when the declaring component is dirty checked. ([#16592](https://github.com/angular/angular/issues/16592)) ([fcc91d8](https://github.com/angular/angular/commit/fcc91d8)), closes [#14321](https://github.com/angular/angular/issues/14321)
* **http:** flatten metadata for [@angular](https://github.com/angular)/http/testing ([9da6340](https://github.com/angular/angular/commit/9da6340)), closes [#15521](https://github.com/angular/angular/issues/15521)
* **http:** honor RequestArgs.search and RequestArgs.params map type ([aef5245](https://github.com/angular/angular/commit/aef5245)), closes [#15761](https://github.com/angular/angular/issues/15761) [#16392](https://github.com/angular/angular/issues/16392)
* **http:** introduce encodingHint for text() for better ArrayBuffer support ([7ae7a84](https://github.com/angular/angular/commit/7ae7a84)), closes [#15932](https://github.com/angular/angular/issues/15932) [#16420](https://github.com/angular/angular/issues/16420)
* **router:** fix redirect to a URL with a param having multiple values ([#16376](https://github.com/angular/angular/issues/16376)) ([5d4b36f](https://github.com/angular/angular/commit/5d4b36f)), closes [#16310](https://github.com/angular/angular/issues/16310)


### Features

* **animations:** introduce a wave of new animation features ([16c8167](https://github.com/angular/angular/commit/16c8167))
* **animations:** introduce routable animation support ([f1a9e3c](https://github.com/angular/angular/commit/f1a9e3c))
* add .ngsummary.ts files to support AOT unit tests ([547c363](https://github.com/angular/angular/commit/547c363))
* introduce `TestBed.overrideProvider` ([#16725](https://github.com/angular/angular/issues/16725)) ([39b92f7](https://github.com/angular/angular/commit/39b92f7))
* **compiler:** support a non-null postfix assert ([#16672](https://github.com/angular/angular/issues/16672)) ([b9521b5](https://github.com/angular/angular/commit/b9521b5))
* **core:** introduce fixture.whenRenderingDone for testing ([#16732](https://github.com/angular/angular/issues/16732)) ([38c524d](https://github.com/angular/angular/commit/38c524d))


### Performance Improvements

* **animations:** reduce size of animations bundle ([712630c](https://github.com/angular/angular/commit/712630c))



<a name="4.1.3"></a>
## [4.1.3](https://github.com/angular/angular/compare/4.1.2...4.1.3) (2017-05-17)


### Bug Fixes

* add typescript 2.3.2 typings test ([#16738](https://github.com/angular/angular/issues/16738)) ([a5bdbed](https://github.com/angular/angular/commit/a5bdbed)), closes [#16663](https://github.com/angular/angular/issues/16663)
* **compiler-cli:** import routing module with forRoot ([#16438](https://github.com/angular/angular/issues/16438)) ([b7f8581](https://github.com/angular/angular/commit/b7f8581))
* **platform-server:** wait for async app initializers to complete before removing server side styles ([#16712](https://github.com/angular/angular/issues/16712)) ([0a82f7d](https://github.com/angular/angular/commit/0a82f7d)), closes [#15716](https://github.com/angular/angular/issues/15716)
* **router:** Wrap Promise-like instances in native Promises ([#16759](https://github.com/angular/angular/issues/16759)) ([883ca28](https://github.com/angular/angular/commit/883ca28))
* **upgrade:** Prevent renaming of $inject property ([#16706](https://github.com/angular/angular/issues/16706)) ([afb7540](https://github.com/angular/angular/commit/afb7540))
* **upgrade:** use quote to prevent ClossureCompiler obfuscating $event. ([#16724](https://github.com/angular/angular/issues/16724)) ([47df3d6](https://github.com/angular/angular/commit/47df3d6))



<a name="4.2.0-beta.1"></a>
# [4.2.0-beta.1](https://github.com/angular/angular/compare/4.2.0-beta.0...4.2.0-beta.1) (2017-05-10)


### Features

* add .ngsummary.ts files to support AOT unit tests ([547c363](https://github.com/angular/angular/commit/547c363))



<a name="4.1.2"></a>
## [4.1.2](https://github.com/angular/angular/compare/4.1.1...4.1.2) (2017-05-10)


### Bug Fixes

* **compiler:** avoid a `...null` spread in extraction ([#16547](https://github.com/angular/angular/issues/16547)) ([d0e1688](https://github.com/angular/angular/commit/d0e1688))
* **core:** detach projected views when a parent view is destroyed ([#16592](https://github.com/angular/angular/issues/16592)) ([ee6705a](https://github.com/angular/angular/commit/ee6705a)), closes [#15578](https://github.com/angular/angular/issues/15578)
* **core:** projected views should be dirty checked when the declaring component is dirty checked. ([#16592](https://github.com/angular/angular/issues/16592)) ([9218812](https://github.com/angular/angular/commit/9218812)), closes [#14321](https://github.com/angular/angular/issues/14321)
* **http:** flatten metadata for [@angular](https://github.com/angular)/http/testing ([9c70a3c](https://github.com/angular/angular/commit/9c70a3c)), closes [#15521](https://github.com/angular/angular/issues/15521)
* **http:** honor RequestArgs.search and RequestArgs.params map type ([63066f7](https://github.com/angular/angular/commit/63066f7)), closes [#15761](https://github.com/angular/angular/issues/15761) [#16392](https://github.com/angular/angular/issues/16392)
* **http:** introduce encodingHint for text() for better ArrayBuffer support ([ec3b6e9](https://github.com/angular/angular/commit/ec3b6e9)), closes [#15932](https://github.com/angular/angular/issues/15932) [#16420](https://github.com/angular/angular/issues/16420)
* **router:** fix redirect to a URL with a param having multiple values ([#16376](https://github.com/angular/angular/issues/16376)) ([915eae5](https://github.com/angular/angular/commit/915eae5)), closes [#16310](https://github.com/angular/angular/issues/16310)



<a name="4.2.0-beta.0"></a>
# [4.2.0-beta.0](https://github.com/angular/angular/compare/4.1.0...4.2.0-beta.0) (2017-05-04)


### Bug Fixes

* **core**: strictNullCheck support. ([#16389](https://github.com/angular/angular/issues/16389)) ([#16389](https://github.com/angular/angular/issues/16389)) ([8c09d10](https://github.com/angular/angular/commit/8c09d10)), closes [#16357](https://github.com/angular/angular/issues/16357)
* **core:** allow directives to inject the component’s `ChangeDetectorRef`. ([#16394](https://github.com/angular/angular/issues/16394)) ([392d584](https://github.com/angular/angular/commit/392d584)), closes [#12816](https://github.com/angular/angular/issues/12816)
* **core:** allow to detach `OnPush` components ([#16394](https://github.com/angular/angular/issues/16394)) ([aa8bba4](https://github.com/angular/angular/commit/aa8bba4)), closes [#9720](https://github.com/angular/angular/issues/9720)
* **core:** don’t set `ng-version` for dynamically created components ([#16394](https://github.com/angular/angular/issues/16394)) ([a4de214](https://github.com/angular/angular/commit/a4de214)), closes [#15880](https://github.com/angular/angular/issues/15880)
* **core:** don’t stop change detection because of errors ([e263e19](https://github.com/angular/angular/commit/e263e19)), closes [#9531](https://github.com/angular/angular/issues/9531) [#2413](https://github.com/angular/angular/issues/2413) [#15925](https://github.com/angular/angular/issues/15925)
* **language-service:** remove asserts for non-null expressions ([#16422](https://github.com/angular/angular/issues/16422)) ([253345c](https://github.com/angular/angular/commit/253345c))
* **upgrade:** initialize all inputs in time for `ngOnChanges()` ([b3e63c0](https://github.com/angular/angular/commit/b3e63c0)), closes [#16212](https://github.com/angular/angular/issues/16212)


### Features

* **compiler-cli:** add param to set MissingTranslationStrategy on ngc ([#15987](https://github.com/angular/angular/issues/15987)) ([6e2abcd](https://github.com/angular/angular/commit/6e2abcd)), closes [#15808](https://github.com/angular/angular/issues/15808)
* **core:** add `begin` and `end` renderer methods to track change detection ([7f9c589](https://github.com/angular/angular/commit/7f9c589))
* **core:** allow custom selector when bootstrapping components ([#15668](https://github.com/angular/angular/issues/15668)) ([900a88b](https://github.com/angular/angular/commit/900a88b)), closes [#7136](https://github.com/angular/angular/issues/7136)
* **core:** upgrade dep on zone.js to 0.8.9 ([#16401](https://github.com/angular/angular/issues/16401)) ([065b76d](https://github.com/angular/angular/commit/065b76d))
* **forms:** introduce min and max validators ([#15813](https://github.com/angular/angular/issues/15813)) ([81925fa](https://github.com/angular/angular/commit/81925fa))
* **language-service:** provide external file list to TypeScript ([#16417](https://github.com/angular/angular/issues/16417)) ([f4b771a](https://github.com/angular/angular/commit/f4b771a))



<a name="4.1.1"></a>
## [4.1.1](https://github.com/angular/angular/compare/4.1.0...4.1.1) (2017-05-04)


### Bug Fixes

* **core**: strictNullCheck support. ([#16389](https://github.com/angular/angular/issues/16389)) ([#16389](https://github.com/angular/angular/issues/16389)) ([427d63a](https://github.com/angular/angular/commit/427d63a)), closes [#16357](https://github.com/angular/angular/issues/16357)
* **core:** allow directives to inject the component’s `ChangeDetectorRef`. ([#16394](https://github.com/angular/angular/issues/16394)) ([f66e59e](https://github.com/angular/angular/commit/f66e59e)), closes [#12816](https://github.com/angular/angular/issues/12816)
* **core:** allow to detach `OnPush` components ([#16394](https://github.com/angular/angular/issues/16394)) ([acf83b9](https://github.com/angular/angular/commit/acf83b9)), closes [#9720](https://github.com/angular/angular/issues/9720)
* **core:** don’t set `ng-version` for dynamically created components ([#16394](https://github.com/angular/angular/issues/16394)) ([85a1b54](https://github.com/angular/angular/commit/85a1b54)), closes [#15880](https://github.com/angular/angular/issues/15880)
* **core:** don’t stop change detection because of errors ([07cef36](https://github.com/angular/angular/commit/07cef36)), closes [#9531](https://github.com/angular/angular/issues/9531) [#2413](https://github.com/angular/angular/issues/2413) [#15925](https://github.com/angular/angular/issues/15925)
* **language-service:** remove asserts for non-null expressions ([#16422](https://github.com/angular/angular/issues/16422)) ([c060110](https://github.com/angular/angular/commit/c060110))
* **upgrade:** initialize all inputs in time for `ngOnChanges()` ([dd4e501](https://github.com/angular/angular/commit/dd4e501)), closes [#16212](https://github.com/angular/angular/issues/16212)



<a name="4.1.0"></a>
# [4.1.0](https://github.com/angular/angular/compare/4.1.0-rc.0...4.1.0) (2017-04-26)


### Bug Fixes

* **router:** forward the query parameters in the ng1 -> ng2 url sync ([#16249](https://github.com/angular/angular/issues/16249)) ([2f97731](https://github.com/angular/angular/commit/2f97731)), closes [#16067](https://github.com/angular/angular/issues/16067)
* **upgrade:** use correct attribute name for upgraded component's bindings ([#16128](https://github.com/angular/angular/issues/16128)) ([d1fb066](https://github.com/angular/angular/commit/d1fb066)), closes [#8856](https://github.com/angular/angular/issues/8856)


<a name="4.1.0-rc.0"></a>
# [4.1.0-rc.0](https://github.com/angular/angular/compare/4.1.0-beta.0...4.1.0-rc.0) (2017-04-21)


### Bug Fixes

* **benchpress:** chrome - prevent trace buffer overflow ([2f44206](https://github.com/angular/angular/commit/2f44206))
* **benchpress:** Update types for TypeScript nullability support ([14669f2](https://github.com/angular/angular/commit/14669f2))
* **common:** Update types for TypeScript nullability support ([d8b73e4](https://github.com/angular/angular/commit/d8b73e4))
* **compiler:** fix build error in xliff2 ([bd704c9](https://github.com/angular/angular/commit/bd704c9))
* **compiler:** fix inheritance for AOT with summaries ([#15583](https://github.com/angular/angular/issues/15583)) ([8ef621a](https://github.com/angular/angular/commit/8ef621a))
* **compiler:** ignore calls to unresolved symbols in metadata ([38a7e0d](https://github.com/angular/angular/commit/38a7e0d)), closes [#15969](https://github.com/angular/angular/issues/15969)
* **compiler:** ignore calls to unresolved symbols in metadata ([#15970](https://github.com/angular/angular/issues/15970)) ([ce47d33](https://github.com/angular/angular/commit/ce47d33)), closes [#15969](https://github.com/angular/angular/issues/15969)
* **compiler:** Inform user where Quoted error was thrown ([a77b126](https://github.com/angular/angular/commit/a77b126))
* **compiler:** make I18NHtmlParser provider AoT-compliant ([#15980](https://github.com/angular/angular/issues/15980)) ([745731e](https://github.com/angular/angular/commit/745731e))
* **compiler:** support `<ng-container>` whatever the namespace ([5b141fb](https://github.com/angular/angular/commit/5b141fb)), closes [#14257](https://github.com/angular/angular/issues/14257)
* **compiler:** suppress another closure warning ([#16137](https://github.com/angular/angular/issues/16137)) ([11b0213](https://github.com/angular/angular/commit/11b0213))
* **compiler:** Update types for TypeScript nullability support ([09d9f5f](https://github.com/angular/angular/commit/09d9f5f))
* **core:** benchmarks - enable ng1 benchmark again ([bccfaa4](https://github.com/angular/angular/commit/bccfaa4))
* **core:** distribute externs for testability API ([#16179](https://github.com/angular/angular/issues/16179)) ([da66884](https://github.com/angular/angular/commit/da66884))
* **core:** key-value differ changes iteration ([#15968](https://github.com/angular/angular/issues/15968)) ([cb5a7ef](https://github.com/angular/angular/commit/cb5a7ef)), closes [#14997](https://github.com/angular/angular/issues/14997)
* **forms:** Update types for TypeScript nullability support ([6649743](https://github.com/angular/angular/commit/6649743))
* **forms:** Update types for TypeScript nullability support ([57bc245](https://github.com/angular/angular/commit/57bc245))
* **forms:** Update types for TypeScript nullability support ([#15859](https://github.com/angular/angular/issues/15859)) ([6a2e08d](https://github.com/angular/angular/commit/6a2e08d))
* **http:** Update types for TypeScript nullability support ([c36ec9b](https://github.com/angular/angular/commit/c36ec9b))
* **http:** Update types for TypeScript nullability support ([ec028b8](https://github.com/angular/angular/commit/ec028b8))
* **language-service:** avoid throwing exceptions when reporting metadata errors ([7764c5c](https://github.com/angular/angular/commit/7764c5c))
* **language-service:** detect when there isn't a tsconfig.json ([258d539](https://github.com/angular/angular/commit/258d539)), closes [#15874](https://github.com/angular/angular/issues/15874)
* **language-service:** improve resilience to incomplete information ([71a8627](https://github.com/angular/angular/commit/71a8627))
* **language-service:** infer correct type of `?.` expressions ([0a3a9af](https://github.com/angular/angular/commit/0a3a9af)), closes [#15885](https://github.com/angular/angular/issues/15885)
* **language-service:** initialize static reflector correctly ([fe0d02f](https://github.com/angular/angular/commit/fe0d02f)), closes [#15768](https://github.com/angular/angular/issues/15768)
* **language-service:** look for type constructors on canonical symbol ([2ddf3bc](https://github.com/angular/angular/commit/2ddf3bc))
* **language-service:** only use canonical symbols ([5a88d2f](https://github.com/angular/angular/commit/5a88d2f))
* **language-service:** parse extended i18n forms ([bde9771](https://github.com/angular/angular/commit/bde9771))
* **language-service:** resolve any parameter types to any result ([5fbb0d0](https://github.com/angular/angular/commit/5fbb0d0))
* **language-service:** respect baseUrl compiler option ([f21ff90](https://github.com/angular/angular/commit/f21ff90)), closes [#15974](https://github.com/angular/angular/issues/15974)
* **language-service:** Update types for TypeScript nullability support ([540581d](https://github.com/angular/angular/commit/540581d))
* **packaging:** increased buffer size ([#15840](https://github.com/angular/angular/issues/15840)) ([65af964](https://github.com/angular/angular/commit/65af964))
* **platform-browser:** Update types for TypeScript nullability support ([728c9d0](https://github.com/angular/angular/commit/728c9d0)), closes [#15898](https://github.com/angular/angular/issues/15898)
* **platform-server:** handle innerText ([#15818](https://github.com/angular/angular/issues/15818)) ([9394835](https://github.com/angular/angular/commit/9394835))
* **router:** fix query param parsing ([a487563](https://github.com/angular/angular/commit/a487563))
* **router:** prevent `RouterLinkActive` from causing an infinite CD loop ([82417b3](https://github.com/angular/angular/commit/82417b3)), closes [#15825](https://github.com/angular/angular/issues/15825)
* **router:** relax nullability requirements ([a0d124b](https://github.com/angular/angular/commit/a0d124b))
* turn on nullability in the code base. ([5293794](https://github.com/angular/angular/commit/5293794))
* Update types for TypeScript nullability support in examples ([6f5fccf](https://github.com/angular/angular/commit/6f5fccf))
* **router:** the preloader use the module from the loaded config ([6d12aa9](https://github.com/angular/angular/commit/6d12aa9))
* **router:** Update types for TypeScript nullability support ([56c46d7](https://github.com/angular/angular/commit/56c46d7))
* **router:** Update types for TypeScript nullability support ([bc43188](https://github.com/angular/angular/commit/bc43188))
* **tsc-wrapped:** collect new expressions with no arguments ([#15908](https://github.com/angular/angular/issues/15908)) ([70b1d6d](https://github.com/angular/angular/commit/70b1d6d)), closes [#15906](https://github.com/angular/angular/issues/15906)
* **tsc-wrapped:** ensure valid path separators in metadata ([96aa236](https://github.com/angular/angular/commit/96aa236))
* **upgrade:** Update types for TypeScript nullability support ([01d93f3](https://github.com/angular/angular/commit/01d93f3)), closes [#15897](https://github.com/angular/angular/issues/15897)


### Features

* **animations:** Update types for TypeScript nullability support ([38d75d4](https://github.com/angular/angular/commit/38d75d4)), closes [#15870](https://github.com/angular/angular/issues/15870)
* **compiler:** add source files to xmb/xliff translations ([#14705](https://github.com/angular/angular/issues/14705)) ([4054055](https://github.com/angular/angular/commit/4054055)), closes [#14190](https://github.com/angular/angular/issues/14190)
* **compiler:** Implement i18n XLIFF 2.0 serializer ([#14185](https://github.com/angular/angular/issues/14185)) ([09c4cb2](https://github.com/angular/angular/commit/09c4cb2)), closes [#11735](https://github.com/angular/angular/issues/11735)
* **upgrade:** allow setting the angularjs lib at runtime ([#15168](https://github.com/angular/angular/issues/15168)) ([e927aea](https://github.com/angular/angular/commit/e927aea))
* **upgrade:** allow setting the angularjs lib at runtime ([#15168](https://github.com/angular/angular/issues/15168)) ([8ad464d](https://github.com/angular/angular/commit/8ad464d))
* **upgrade:** fixes for allow setting the angularjs lib at runtime ([90814e4](https://github.com/angular/angular/commit/90814e4))
* add support for TS 2.2 ([3c8a61e](https://github.com/angular/angular/commit/3c8a61e))
* add support for TS 2.3 ([014594f](https://github.com/angular/angular/commit/014594f))



<a name="4.0.3"></a>
## [4.0.3](https://github.com/angular/angular/compare/4.0.2...4.0.3) (2017-04-21)


### Bug Fixes

* **benchpress:** chrome - prevent trace buffer overflow ([d216f94](https://github.com/angular/angular/commit/d216f94))
* **compiler:** fix build error in xliff2 ([1870347](https://github.com/angular/angular/commit/1870347))
* **compiler:** ignore calls to unresolved symbols in metadata ([d4038ab](https://github.com/angular/angular/commit/d4038ab)), closes [#15969](https://github.com/angular/angular/issues/15969)
* **compiler:** ignore calls to unresolved symbols in metadata ([#15970](https://github.com/angular/angular/issues/15970)) ([db25f08](https://github.com/angular/angular/commit/db25f08)), closes [#15969](https://github.com/angular/angular/issues/15969)
* **compiler:** Inform user where Quoted error was thrown ([3184cc5](https://github.com/angular/angular/commit/3184cc5))
* **compiler:** suppress another closure warning ([#16137](https://github.com/angular/angular/issues/16137)) ([72e240a](https://github.com/angular/angular/commit/72e240a))
* **core:** benchmarks - enable ng1 benchmark again ([ccac4c6](https://github.com/angular/angular/commit/ccac4c6))
* **core:** distribute externs for testability API ([#16179](https://github.com/angular/angular/issues/16179)) ([e377d9d](https://github.com/angular/angular/commit/e377d9d))
* **core:** key-value differ changes iteration ([#15968](https://github.com/angular/angular/issues/15968)) ([a8600dc](https://github.com/angular/angular/commit/a8600dc)), closes [#14997](https://github.com/angular/angular/issues/14997)
* **language-service:** only use canonical symbols ([786093a](https://github.com/angular/angular/commit/786093a))
* **packaging:** increased buffer size ([#15840](https://github.com/angular/angular/issues/15840)) ([88ad490](https://github.com/angular/angular/commit/88ad490))
* **platform-server:** handle innerText ([#15818](https://github.com/angular/angular/issues/15818)) ([7de340d](https://github.com/angular/angular/commit/7de340d))
* **router:** prevent `RouterLinkActive` from causing an infinite CD loop ([4479c42](https://github.com/angular/angular/commit/4479c42)), closes [#15825](https://github.com/angular/angular/issues/15825)
* **tsc-wrapped:** collect new expressions with no arguments ([#15908](https://github.com/angular/angular/issues/15908)) ([41cac9e](https://github.com/angular/angular/commit/41cac9e)), closes [#15906](https://github.com/angular/angular/issues/15906)


### Features

* **compiler:** Implement i18n XLIFF 2.0 serializer ([#14185](https://github.com/angular/angular/issues/14185)) ([a7d8edd](https://github.com/angular/angular/commit/a7d8edd)), closes [#11735](https://github.com/angular/angular/issues/11735)
* **upgrade:** allow setting the angularjs lib at runtime ([#15168](https://github.com/angular/angular/issues/15168)) ([a75d056](https://github.com/angular/angular/commit/a75d056))
* **upgrade:** allow setting the angularjs lib at runtime ([#15168](https://github.com/angular/angular/issues/15168)) ([4f172b0](https://github.com/angular/angular/commit/4f172b0))
* **upgrade:** fixes for allow setting the angularjs lib at runtime ([bb6932d](https://github.com/angular/angular/commit/bb6932d))
* add support for TS 2.3 ([5cf101f](https://github.com/angular/angular/commit/5cf101f))



<a name="4.1.0-beta.1"></a>
# [4.1.0-beta.1](https://github.com/angular/angular/compare/4.1.0-beta.0...4.1.0-beta.1) (2017-04-12)


### Bug Fixes

* **compiler:** fix inheritance for AOT with summaries ([#15583](https://github.com/angular/angular/issues/15583)) ([8ef621a](https://github.com/angular/angular/commit/8ef621a))
* **language-service:** avoid throwing exceptions when reporting metadata errors ([7764c5c](https://github.com/angular/angular/commit/7764c5c))
* **language-service:** detect when there isn't a tsconfig.json ([258d539](https://github.com/angular/angular/commit/258d539)), closes [#15874](https://github.com/angular/angular/issues/15874)
* **language-service:** improve resilience to incomplete information ([71a8627](https://github.com/angular/angular/commit/71a8627))
* **language-service:** initialize static reflector correctly ([fe0d02f](https://github.com/angular/angular/commit/fe0d02f)), closes [#15768](https://github.com/angular/angular/issues/15768)
* **language-service:** parse extended i18n forms ([bde9771](https://github.com/angular/angular/commit/bde9771))
* **language-service:** resolve any parameter types to any result ([5fbb0d0](https://github.com/angular/angular/commit/5fbb0d0))
* **router:** fix query param parsing ([a487563](https://github.com/angular/angular/commit/a487563))
* **router:** the preloader use the module from the loaded config ([6d12aa9](https://github.com/angular/angular/commit/6d12aa9))
* **tsc-wrapped:** ensure valid path separators in metadata ([96aa236](https://github.com/angular/angular/commit/96aa236))


### Features

* **animations:** Update types for TypeScript nullability support ([38d75d4](https://github.com/angular/angular/commit/38d75d4)), closes [#15870](https://github.com/angular/angular/issues/15870)
* **benchpress:** Update types for TypeScript nullability support ([14669f2](https://github.com/angular/angular/commit/14669f2))
* **common:** Update types for TypeScript nullability support ([d8b73e4](https://github.com/angular/angular/commit/d8b73e4))
* **compiler:** Update types for TypeScript nullability support ([09d9f5f](https://github.com/angular/angular/commit/09d9f5f))
* **language-service:** Update types for TypeScript nullability support ([540581d](https://github.com/angular/angular/commit/540581d))



<a name="4.0.2"></a>
## [4.0.2](https://github.com/angular/angular/compare/4.0.1...4.0.2) (2017-04-11)


### Bug Fixes

* **compiler:** fix inheritance for AOT with summaries ([#15583](https://github.com/angular/angular/issues/15583)) ([1864ccb](https://github.com/angular/angular/commit/1864ccb))
* **language-service:** avoid throwing exceptions when reporting metadata errors ([0861fda](https://github.com/angular/angular/commit/0861fda))
* **language-service:** detect when there isn't a tsconfig.json ([168a2eb](https://github.com/angular/angular/commit/168a2eb)), closes [#15874](https://github.com/angular/angular/issues/15874)
* **language-service:** improve resilience to incomplete information ([e4277a0](https://github.com/angular/angular/commit/e4277a0))
* **language-service:** initialize static reflector correctly ([5b99533](https://github.com/angular/angular/commit/5b99533)), closes [#15768](https://github.com/angular/angular/issues/15768)
* **language-service:** parse extended i18n forms ([c9c7acd](https://github.com/angular/angular/commit/c9c7acd))
* **language-service:** resolve any parameter types to any result ([feae7b6](https://github.com/angular/angular/commit/feae7b6))
* **router:** fix query param parsing ([2f41b52](https://github.com/angular/angular/commit/2f41b52))
* **router:** the preloader use the module from the loaded config ([978f809](https://github.com/angular/angular/commit/978f809))
* **tsc-wrapped:** ensure valid path separators in metadata ([c10e50c](https://github.com/angular/angular/commit/c10e50c))



<a name="4.1.0-beta.0"></a>
# [4.1.0-beta.0](https://github.com/angular/angular/compare/4.0.0...4.1.0-beta.0) (2017-03-29)

### Features

* **compiler:** support ICU messages in XLIFF ([b8d5f87](https://github.com/angular/angular/commit/b8d5f87)), closes [#12636](https://github.com/angular/angular/issues/12636) [#15068](https://github.com/angular/angular/issues/15068)

Note: 4.1.0-beta.0 release also contains all the changes present in the 4.0.1 release.


<a name="4.0.1"></a>
## [4.0.1](https://github.com/angular/angular/compare/4.0.0...4.0.1) (2017-03-29)


### Bug Fixes

* **animations:** make sure style calculations are not computed too early ([#15540](https://github.com/angular/angular/issues/15540)) ([c828511](https://github.com/angular/angular/commit/c828511)), closes [#15507](https://github.com/angular/angular/issues/15507)
* **compiler:** allow single quotes into named interpolations ([#15461](https://github.com/angular/angular/issues/15461)) ([a654875](https://github.com/angular/angular/commit/a654875)), closes [#15318](https://github.com/angular/angular/issues/15318)
* **compiler:** ignore errors when evaluating base classes ([#15560](https://github.com/angular/angular/issues/15560)) ([a88413f](https://github.com/angular/angular/commit/a88413f)), closes [#15536](https://github.com/angular/angular/issues/15536)
* **compiler:** throw when a component defines both template and templateUrl ([#15572](https://github.com/angular/angular/issues/15572)) ([902bb2f](https://github.com/angular/angular/commit/902bb2f)), closes [#15566](https://github.com/angular/angular/issues/15566)
* **core:** check for undefined on normalizeDebugBindingValue ([#15503](https://github.com/angular/angular/issues/15503)) ([b8c0a97](https://github.com/angular/angular/commit/b8c0a97)), closes [#15494](https://github.com/angular/angular/issues/15494)
* **core:** fix inheritance in JIT mode for TS 2.1 ([#15599](https://github.com/angular/angular/issues/15599)) ([ca66530](https://github.com/angular/angular/commit/ca66530)), closes [#15502](https://github.com/angular/angular/issues/15502)
* **core:** fix the key/value differ ([#15539](https://github.com/angular/angular/issues/15539)) ([e72124c](https://github.com/angular/angular/commit/e72124c)), closes [#15457](https://github.com/angular/angular/issues/15457)
* **core:** improve error msg for invalid KeyValueDiffer.diff arg ([#15489](https://github.com/angular/angular/issues/15489)) ([d74e4d0](https://github.com/angular/angular/commit/d74e4d0)), closes [#15402](https://github.com/angular/angular/issues/15402)
* **core:** Update types for TypeScript nullability support ([#15472](https://github.com/angular/angular/issues/15472)) ([8c4b963](https://github.com/angular/angular/commit/8c4b963))
* **language-service:** be resilient to invalidate ordering ([#15470](https://github.com/angular/angular/issues/15470)) ([a2c2b87](https://github.com/angular/angular/commit/a2c2b87)), closes [#15466](https://github.com/angular/angular/issues/15466)
* **language-service:** correctly determine base members of types ([#15600](https://github.com/angular/angular/issues/15600)) ([0fe4985](https://github.com/angular/angular/commit/0fe4985)), closes [#15460](https://github.com/angular/angular/issues/15460)
* **language-service:** don't require `reflect-metadata` module to be provided ([#15569](https://github.com/angular/angular/issues/15569)) ([bfa4f70](https://github.com/angular/angular/commit/bfa4f70)), closes [#15568](https://github.com/angular/angular/issues/15568)
* **language-service:** guard access to `Symbol.members` ([#15529](https://github.com/angular/angular/issues/15529)) ([bf25e94](https://github.com/angular/angular/commit/bf25e94)), closes [#15528](https://github.com/angular/angular/issues/15528)
* **language-service:** improve performance of `updateModuleAnalysis()` ([#15543](https://github.com/angular/angular/issues/15543)) ([5597fd3](https://github.com/angular/angular/commit/5597fd3))
* **router:** should run CanActivate after CanDeactivate guards ([75478b2](https://github.com/angular/angular/commit/75478b2)), closes [#14059](https://github.com/angular/angular/issues/14059) [#15467](https://github.com/angular/angular/issues/15467)
* **router:** shouldn't execute CanLoad when a route has been loaded ([2360676](https://github.com/angular/angular/commit/2360676)), closes [#14475](https://github.com/angular/angular/issues/14475) [#15438](https://github.com/angular/angular/issues/15438)


### Performance Improvements

* **router:** don't create new serializer every time UrlTree.toString is called ([#15565](https://github.com/angular/angular/issues/15565)) ([fd61145](https://github.com/angular/angular/commit/fd61145))

<a name="4.0.0"></a>
# [4.0.0](https://github.com/angular/angular/compare/4.0.0-rc.6...4.0.0) invisible-makeover (2017-03-23)


### Bug Fixes

* **compiler:** assume queries with no matches as static ([#15429](https://github.com/angular/angular/issues/15429)) ([c8ab5cb](https://github.com/angular/angular/commit/c8ab5cb)), closes [#15417](https://github.com/angular/angular/issues/15417)
* **compiler:** correctly handle when `toString` is exported ([#15430](https://github.com/angular/angular/issues/15430)) ([0dda01e](https://github.com/angular/angular/commit/0dda01e)), closes [#15420](https://github.com/angular/angular/issues/15420)
* **platform-browser:** setAttribute should work with xmlns namespace ([#14874](https://github.com/angular/angular/issues/14874)) ([92084f2](https://github.com/angular/angular/commit/92084f2)), closes [#14865](https://github.com/angular/angular/issues/14865)
* **router:** should pass new data to Observable when query params change ([#15387](https://github.com/angular/angular/issues/15387)) ([08f2f08](https://github.com/angular/angular/commit/08f2f08)), closes [#15290](https://github.com/angular/angular/issues/15290)
* prevent strictNullChecks support until [#15432](https://github.com/angular/angular/issues/15432) is fixed ([#15434](https://github.com/angular/angular/issues/15434)) ([b800a0c](https://github.com/angular/angular/commit/b800a0c))

### BREAKING CHANGES

From 4.0.0 @angular/core uses a [`WeakMap`](https://github.com/angular/angular/commit/52b21275f4c2c26c46627f5648b41a33bb5c8283), a polyfill needs to be included for [browsers that do not support it natively](http://kangax.github.io/compat-table/es6/#test-WeakMap).

<a name="4.0.0-rc.6"></a>
# [4.0.0-rc.6](https://github.com/angular/angular/compare/4.0.0-rc.5...4.0.0-rc.6) (2017-03-23)


### Bug Fixes

* **animations:** correct the main entry path in package.json ([#15300](https://github.com/angular/angular/issues/15300)) ([2489e4b](https://github.com/angular/angular/commit/2489e4b))
* **animations:** ensure empty animate() steps work at the end of a sequence ([#15328](https://github.com/angular/angular/issues/15328)) ([fbccd5c](https://github.com/angular/angular/commit/fbccd5c)), closes [#15310](https://github.com/angular/angular/issues/15310)
* **animations:** ensure enter/leave cancellations work ([#15323](https://github.com/angular/angular/issues/15323)) ([9bf2fb4](https://github.com/angular/angular/commit/9bf2fb4)), closes [#15315](https://github.com/angular/angular/issues/15315)
* **animations:** make sure easing values work with web-animations ([#15195](https://github.com/angular/angular/issues/15195)) ([f925910](https://github.com/angular/angular/commit/f925910)), closes [#15115](https://github.com/angular/angular/issues/15115)
* **animations:** make sure non-transitioned leave operations cancel existing animations ([#15254](https://github.com/angular/angular/issues/15254)) ([a6fb78e](https://github.com/angular/angular/commit/a6fb78e)), closes [#15213](https://github.com/angular/angular/issues/15213)
* **animations:** only process element nodes through the animation engine ([#15268](https://github.com/angular/angular/issues/15268)) ([80075af](https://github.com/angular/angular/commit/80075af)), closes [#15267](https://github.com/angular/angular/issues/15267)
* **animations:** only treat view removals as `void` state transitions ([#15245](https://github.com/angular/angular/issues/15245)) ([c66437f](https://github.com/angular/angular/commit/c66437f)), closes [#15223](https://github.com/angular/angular/issues/15223)
* **animations:** stringify boolean values as `1` and `0` ([#15311](https://github.com/angular/angular/issues/15311)) ([94da801](https://github.com/angular/angular/commit/94da801)), closes [#15247](https://github.com/angular/angular/issues/15247)
* **compiler:** add an empty content for source file of non mapped code. ([#15246](https://github.com/angular/angular/issues/15246)) ([8415910](https://github.com/angular/angular/commit/8415910))
* **compiler:** don’t call `check` if we don’t need to ([#15322](https://github.com/angular/angular/issues/15322)) ([764e90f](https://github.com/angular/angular/commit/764e90f))
* **compiler:** look for flat module resources using declaration module path ([#15367](https://github.com/angular/angular/issues/15367)) ([90d2518](https://github.com/angular/angular/commit/90d2518)), closes [#15221](https://github.com/angular/angular/issues/15221)
* **compiler:** only log template deprecation warning once ([#15364](https://github.com/angular/angular/issues/15364)) ([08d8675](https://github.com/angular/angular/commit/08d8675))
* **compiler:** use attribute id to merge translations ([#15302](https://github.com/angular/angular/issues/15302)) ([1d7693c](https://github.com/angular/angular/commit/1d7693c)), closes [#15234](https://github.com/angular/angular/issues/15234)
* **compiler-cli:** adding missing format xliff for the extractor ([#15386](https://github.com/angular/angular/issues/15386)) ([a50d79d](https://github.com/angular/angular/commit/a50d79d))
* **core:** allow tree shaking of component factories and styles ([#15214](https://github.com/angular/angular/issues/15214)) ([2a0e55f](https://github.com/angular/angular/commit/2a0e55f)), closes [#15181](https://github.com/angular/angular/issues/15181)
* **core:** don’t create a comment for components with empty template. ([#15260](https://github.com/angular/angular/issues/15260)) ([f8c075a](https://github.com/angular/angular/commit/f8c075a)), closes [#15143](https://github.com/angular/angular/issues/15143)
* **core:** mark components for check when host events trigger. ([#15359](https://github.com/angular/angular/issues/15359)) ([64beae9](https://github.com/angular/angular/commit/64beae9)), closes [#15352](https://github.com/angular/angular/issues/15352)
* **core:** only apply `WrappedValue` to the binding of the pipe ([#15257](https://github.com/angular/angular/issues/15257)) ([0c43535](https://github.com/angular/angular/commit/0c43535)), closes [#15116](https://github.com/angular/angular/issues/15116)
* **core:** provide `NgModuleRef` in `ViewContainerRef.createComponent`. ([#15350](https://github.com/angular/angular/issues/15350)) ([431eb30](https://github.com/angular/angular/commit/431eb30)), closes [#15241](https://github.com/angular/angular/issues/15241)
* **core:** stringify shouldn't throw when toString returns null/undefined ([#14975](https://github.com/angular/angular/issues/14975)) ([8e6995c](https://github.com/angular/angular/commit/8e6995c)), closes [#14948](https://github.com/angular/angular/issues/14948)
* **core:** trigger host animations for elements that are removed. ([#15251](https://github.com/angular/angular/issues/15251)) ([0d3e314](https://github.com/angular/angular/commit/0d3e314)), closes [#14813](https://github.com/angular/angular/issues/14813) [#15193](https://github.com/angular/angular/issues/15193)
* **core:** update peer dep on zone.js to ^0.8.5 ([#15365](https://github.com/angular/angular/issues/15365)) ([97149f9](https://github.com/angular/angular/commit/97149f9)), closes [#15185](https://github.com/angular/angular/issues/15185)
* **forms:** make composition event buffering configurable ([#15256](https://github.com/angular/angular/issues/15256)) ([5efc860](https://github.com/angular/angular/commit/5efc860)), closes [#15079](https://github.com/angular/angular/issues/15079)
* **platform-server:** interpret Native view encapsulation as Emulated on the server ([#15155](https://github.com/angular/angular/issues/15155)) ([de3d2ee](https://github.com/angular/angular/commit/de3d2ee))
* **platform-server:** setup NoopAnimationsModule in ServerModule by default ([#15131](https://github.com/angular/angular/issues/15131)) ([5c5c2ae](https://github.com/angular/angular/commit/5c5c2ae)), closes [#15098](https://github.com/angular/angular/issues/15098) [#14784](https://github.com/angular/angular/issues/14784)
* **platform-server:** throw a better error message for relative URLs ([#15357](https://github.com/angular/angular/issues/15357)) ([15a082c](https://github.com/angular/angular/commit/15a082c)), closes [#15349](https://github.com/angular/angular/issues/15349)
* **tsc-wrapped:** emit flat module format correctly on Windows ([#15215](https://github.com/angular/angular/issues/15215)) ([6e9264a](https://github.com/angular/angular/commit/6e9264a)), closes [#15192](https://github.com/angular/angular/issues/15192)
* **tsc-wrapped:** use windows friendly path normalization in bundler ([#15374](https://github.com/angular/angular/issues/15374)) ([c584997](https://github.com/angular/angular/commit/c584997)), closes [#15289](https://github.com/angular/angular/issues/15289)
* **upgrade:** component injectors should not link the module injector tree ([#15385](https://github.com/angular/angular/issues/15385)) ([ea49a95](https://github.com/angular/angular/commit/ea49a95))


### Features

* **core:** expose `inputs`, `outputs` and `ngContentSelectors` on `ComponentFactory`. ([#15214](https://github.com/angular/angular/issues/15214)) ([791534f](https://github.com/angular/angular/commit/791534f))
* **router:** add `ParamMap.keys` to get a list of parameters ([d3eda7a](https://github.com/angular/angular/commit/d3eda7a))
* **router:** introduce `ParamMap` to access parameters ([a755b71](https://github.com/angular/angular/commit/a755b71))
* **tsc-wrapped:** record original location of flattened symbols ([#15367](https://github.com/angular/angular/issues/15367)) ([7354949](https://github.com/angular/angular/commit/7354949))
* **upgrade:** use `ComponentFactory.inputs/outputs/ngContentSelectors` ([#15214](https://github.com/angular/angular/issues/15214)) ([9429032](https://github.com/angular/angular/commit/9429032))



<a name="4.0.0-rc.5"></a>
# [4.0.0-rc.5](https://github.com/angular/angular/compare/4.0.0-rc.4...4.0.0-rc.5) (2017-03-17)


### Bug Fixes

* **compiler-cli:** update the tsc-wrapped dependency version ([#15226](https://github.com/angular/angular/issues/15226)) ([7fb4528](https://github.com/angular/angular/commit/7fb4528))



<a name="4.0.0-rc.4"></a>
# [4.0.0-rc.4](https://github.com/angular/angular/compare/4.0.0-rc.3...4.0.0-rc.4) (2017-03-17)


### Bug Fixes

* **animations:** always fire callbacks even for noop animations ([#15170](https://github.com/angular/angular/issues/15170)) ([3f38c6f](https://github.com/angular/angular/commit/3f38c6f))
* **animations:** make sure easing values are applied to an empty animate() step ([#15174](https://github.com/angular/angular/issues/15174)) ([62d5543](https://github.com/angular/angular/commit/62d5543)), closes [#15115](https://github.com/angular/angular/issues/15115)
* **animations:** support multiple state names per state() call ([#15147](https://github.com/angular/angular/issues/15147)) ([36ce0af](https://github.com/angular/angular/commit/36ce0af)), closes [#14732](https://github.com/angular/angular/issues/14732)
* **compiler:** always use `ng://` prefix for sourcemap urls ([#15218](https://github.com/angular/angular/issues/15218)) ([994089d](https://github.com/angular/angular/commit/994089d))
* **compiler:** fix utf8encode, move to sharted utils, add tests ([#15076](https://github.com/angular/angular/issues/15076)) ([959a03a](https://github.com/angular/angular/commit/959a03a))
* **compiler:** generated code should pass `noUnusedLocals` check ([50ab06e](https://github.com/angular/angular/commit/50ab06e)), closes [#14797](https://github.com/angular/angular/issues/14797)
* **compiler:** Improve error message for missing annotations ([#14724](https://github.com/angular/angular/issues/14724)) ([3c15916](https://github.com/angular/angular/commit/3c15916))
* **compiler:** improve error msg for unexpected closing tags ([#14747](https://github.com/angular/angular/issues/14747)) ([5f9fb91](https://github.com/angular/angular/commit/5f9fb91)), closes [#6652](https://github.com/angular/angular/issues/6652)
* **compiler:** make sourcemaps work in AOT mode ([492153a](https://github.com/angular/angular/commit/492153a))
* **compiler:** only warn for `[@Injectable](https://github.com/Injectable)` classes with invalid args. ([5c34066](https://github.com/angular/angular/commit/5c34066)), closes [#15003](https://github.com/angular/angular/issues/15003)
* **compiler:** shouldn't throw when Symbol is used as DI token ([#13701](https://github.com/angular/angular/issues/13701)) ([8b5c6b2](https://github.com/angular/angular/commit/8b5c6b2)), closes [#13314](https://github.com/angular/angular/issues/13314)
* **compiler:** support interface types in injectable constuctors ([#14894](https://github.com/angular/angular/issues/14894)) ([b00fe20](https://github.com/angular/angular/commit/b00fe20)), closes [#12631](https://github.com/angular/angular/issues/12631)
* **compiler:** warning prints "WARNING" instead of "ERROR" ([#15125](https://github.com/angular/angular/issues/15125)) ([3b1956b](https://github.com/angular/angular/commit/3b1956b))
* **core:** don’t recreate `TemplateRef` when used as a reference. ([#15066](https://github.com/angular/angular/issues/15066)) ([df914ef](https://github.com/angular/angular/commit/df914ef)), closes [#14873](https://github.com/angular/angular/issues/14873)
* **core:** don’t throw if queries change during change detection. ([06fc42b](https://github.com/angular/angular/commit/06fc42b)), closes [#14925](https://github.com/angular/angular/issues/14925)
* **core:** ErrorHandler should not rethrow an error by default ([#15077](https://github.com/angular/angular/issues/15077)) ([#15208](https://github.com/angular/angular/issues/15208)) ([77fd91d](https://github.com/angular/angular/commit/77fd91d)), closes [#14949](https://github.com/angular/angular/issues/14949) [#15182](https://github.com/angular/angular/issues/15182) [#14316](https://github.com/angular/angular/issues/14316)
* **core:** update peer dep on zone.js to ^0.8.4 ([#15209](https://github.com/angular/angular/issues/15209)) ([d2fbbb4](https://github.com/angular/angular/commit/d2fbbb4)), closes [#15180](https://github.com/angular/angular/issues/15180) [#15185](https://github.com/angular/angular/issues/15185)
* **core:** use presence of .subscribe to detect observables rather then Symbol.observable ([#15171](https://github.com/angular/angular/issues/15171)) ([6e98757](https://github.com/angular/angular/commit/6e98757)), closes [#14298](https://github.com/angular/angular/issues/14298) [#14473](https://github.com/angular/angular/issues/14473) [#14926](https://github.com/angular/angular/issues/14926)
* **forms:** ensure observable validators are properly canceled ([#15132](https://github.com/angular/angular/issues/15132)) ([26d4ce2](https://github.com/angular/angular/commit/26d4ce2))
* **forms:** remove equalsTo validator ([#15050](https://github.com/angular/angular/issues/15050)) ([778f7d6](https://github.com/angular/angular/commit/778f7d6))
* element injector vs module injector ([#15044](https://github.com/angular/angular/issues/15044)) ([13686bb](https://github.com/angular/angular/commit/13686bb)), closes [#12869](https://github.com/angular/angular/issues/12869) [#12889](https://github.com/angular/angular/issues/12889) [#13885](https://github.com/angular/angular/issues/13885) [#13870](https://github.com/angular/angular/issues/13870)
* **http:** Make ResponseOptionsArgs an interface ([#14607](https://github.com/angular/angular/issues/14607)) ([#14623](https://github.com/angular/angular/issues/14623)) ([f1b33ab](https://github.com/angular/angular/commit/f1b33ab)), closes [#13708](https://github.com/angular/angular/issues/13708)
* **platform-browser:** prevent clobbered elements from freezing the browser ([a4076c7](https://github.com/angular/angular/commit/a4076c7))
* **platform-server:** correctly implement get href in parse5 adapter ([#15022](https://github.com/angular/angular/issues/15022)) ([80649ea](https://github.com/angular/angular/commit/80649ea))
* **platform-server:** fix an exception when HostListener('window:scroll') is used on the server ([#15019](https://github.com/angular/angular/issues/15019)) ([4f7d62a](https://github.com/angular/angular/commit/4f7d62a))
* correct UMD resolutions for platform-browser_animations ([#15190](https://github.com/angular/angular/issues/15190)) ([923d0c5](https://github.com/angular/angular/commit/923d0c5)), closes [#15114](https://github.com/angular/angular/issues/15114)
* don't instantiate providers with ngOnDestroy eagerly. ([#15070](https://github.com/angular/angular/issues/15070)) ([2c5a671](https://github.com/angular/angular/commit/2c5a671)), closes [#14552](https://github.com/angular/angular/issues/14552)
* fix path locally to empty.js ([#15073](https://github.com/angular/angular/issues/15073)) ([80112a9](https://github.com/angular/angular/commit/80112a9))
* **platform-server:** fix get/set title in parse5 adapter ([#14965](https://github.com/angular/angular/issues/14965)) ([018e5c9](https://github.com/angular/angular/commit/018e5c9))
* **platform-server:** handle styles with extra ':'s correctly ([#15189](https://github.com/angular/angular/issues/15189)) ([013d806](https://github.com/angular/angular/commit/013d806))
* **platform-server:** support svg elements with namespaced attributes ([#15101](https://github.com/angular/angular/issues/15101)) ([f093501](https://github.com/angular/angular/commit/f093501))
* **router:** fix query parameters with multiple values ([#15129](https://github.com/angular/angular/issues/15129)) ([029d0f2](https://github.com/angular/angular/commit/029d0f2)), closes [#14796](https://github.com/angular/angular/issues/14796)
* **tsc-wrapped:** emit js files in all cases ([c0e05e6](https://github.com/angular/angular/commit/c0e05e6))


### Code Refactoring

* **core:** use flags in `Renderer2.setStyle` instead of booleans ([#15045](https://github.com/angular/angular/issues/15045)) ([ff71eff](https://github.com/angular/angular/commit/ff71eff))

### Features

* **common:** support `as` syntax in template/* bindings ([#15025](https://github.com/angular/angular/issues/15025)) ([c10c060](https://github.com/angular/angular/commit/c10c060)), closes [#15020](https://github.com/angular/angular/issues/15020)
* **compiler-cli:** support metadata file aliases ([0ab49d4](https://github.com/angular/angular/commit/0ab49d4))
* **core:** allow to provide multiple default testing modules ([#15054](https://github.com/angular/angular/issues/15054)) ([6c8638c](https://github.com/angular/angular/commit/6c8638c))
* **core:** expose `inputs`, `outputs` and `ngContentSelectors` on `ComponentFactory`. ([1171f91](https://github.com/angular/angular/commit/1171f91))
* **upgrade:** support multi-slot projection in upgrade/static ([#14282](https://github.com/angular/angular/issues/14282)) ([914797a](https://github.com/angular/angular/commit/914797a)), closes [#14261](https://github.com/angular/angular/issues/14261)
* **upgrade:** use `ComponentFactory.inputs/outputs/ngContentSelectors` ([a3e32fb](https://github.com/angular/angular/commit/a3e32fb))
* introduce source maps for templates ([#15011](https://github.com/angular/angular/issues/15011)) ([cdc882b](https://github.com/angular/angular/commit/cdc882b))

### BREAKING CHANGES

* Perviously, any provider that had an ngOnDestroy lifecycle hook would be created eagerly.

  Now, only classes that are annotated with @Component, @Directive, @Pipe, @NgModule are eager. Providers only become eager if they are either directly or transitively injected into one of the above.

  This also makes all `useValue` providers eager, which
  should have no observable impact other than code size.

  **EXPECTED IMPACT**:
  Making providers eager was an incorrect behavior and never documented.
  Also, providers that are used by a directive / pipe / ngModule stay eager.
  So the impact should be rather small.

* DebugNode.source no longer returns the source location of a node.

  Closes 14013

* core: (since v4 rc.1)
  - `Renderer2.setStyle` no longer takes booleans but rather a
     bit mask of flags.



<a name="2.4.10"></a>
## [2.4.10](https://github.com/angular/angular/compare/2.4.9...2.4.10) (2017-03-17)

### Bug Fixes

* **compiler:** fix decoding surrogate pairs ([#15154](https://github.com/angular/angular/issues/15154)) ([e5c9bbc](https://github.com/angular/angular/commit/e5c9bbc))
* **router:** do not finish bootstrap until all the routes are resolved ([#15121](https://github.com/angular/angular/issues/15121)) ([34403cd](https://github.com/angular/angular/commit/34403cd))


<a name="4.0.0-rc.3"></a>
# [4.0.0-rc.3](https://github.com/angular/angular/compare/4.0.0-rc.2...4.0.0-rc.3) (2017-03-10)


### Bug Fixes

* **compiler:** don’t throw for empty array literal in assignments ([#14878](https://github.com/angular/angular/issues/14878)) ([6cd3326](https://github.com/angular/angular/commit/6cd3326)), closes [#14782](https://github.com/angular/angular/issues/14782)
* **compiler:** improve error message when a module imports itself ([#14646](https://github.com/angular/angular/issues/14646)) ([6bc6482](https://github.com/angular/angular/commit/6bc6482)), closes [#14644](https://github.com/angular/angular/issues/14644)
* **core:** allow to use the `Renderer` outside of views. ([#14882](https://github.com/angular/angular/issues/14882)) ([ba4b6f5](https://github.com/angular/angular/commit/ba4b6f5)), closes [#14872](https://github.com/angular/angular/issues/14872)
* **router:** do not finish bootstrap until all the routes are resolved ([#14762](https://github.com/angular/angular/issues/14762)) ([5df998d](https://github.com/angular/angular/commit/5df998d))
* **upgrade:** populate upgraded component's view before creating the controller ([#14289](https://github.com/angular/angular/issues/14289)) ([07122f0](https://github.com/angular/angular/commit/07122f0)), closes [#13912](https://github.com/angular/angular/issues/13912)
* throw for synthetic properties / listeners by default ([#14880](https://github.com/angular/angular/issues/14880)) ([3651d8d](https://github.com/angular/angular/commit/3651d8d))


### BREAKING CHANGES

#### since 4.0 rc.1:
- rename `RendererV2` to `Renderer2`
- rename `RendererTypeV2` to `RendererType2`
- rename `RendererFactoryV2` to `RendererFactory2`

<a name="2.4.9"></a>
## [2.4.9](https://github.com/angular/angular/compare/2.4.8...2.4.9) (2017-03-02)


### Bug Fixes

* **http:** Make ResponseOptionsArgs an interface ([b658fa9](https://github.com/angular/angular/commit/b658fa9)), closes [#13708](https://github.com/angular/angular/issues/13708)
* **router:** improve robustness ([#14602](https://github.com/angular/angular/issues/14602)) ([2a12346](https://github.com/angular/angular/commit/2a12346))


### Reverts

* fix(router): do not finish bootstrap until all the routes are resolved ([#14327](https://github.com/angular/angular/issues/14327)) ([de36f8a](https://github.com/angular/angular/commit/de36f8a)), closes [#14681](https://github.com/angular/angular/issues/14681) [#14588](https://github.com/angular/angular/issues/14588)



<a name="4.0.0-rc.2"></a>
## [4.0.0-rc.2](https://github.com/angular/angular/compare/4.0.0-rc.1...4.0.0-rc.2) (2017-03-02)


### Bug Fixes

* **animations:** make animations work in AOT ([#14775](https://github.com/angular/angular/issues/14775)) ([9560ad8](https://github.com/angular/angular/commit/9560ad8))
* **compiler:** apply element bindings before host bindings ([#14823](https://github.com/angular/angular/issues/14823)) ([79fc1e3](https://github.com/angular/angular/commit/79fc1e3))
* **compiler:** fix identifier names of `EMPTY_MAP` / `EMPTY_ARRAY` ([#14806](https://github.com/angular/angular/issues/14806)) ([5ba55b0](https://github.com/angular/angular/commit/5ba55b0))
* **compiler:** quote `animation` in `RendererTypeV2` and skip if empty ([#14773](https://github.com/angular/angular/issues/14773)) ([77682a3](https://github.com/angular/angular/commit/77682a3))
* **core:** call lifecycle hooks for siblings in declaration order ([d2e4256](https://github.com/angular/angular/commit/d2e4256))
* **core:** fix `isComponentView()` and `isEmbeddedView()` tests ([#14789](https://github.com/angular/angular/issues/14789)) ([5753de5](https://github.com/angular/angular/commit/5753de5)), closes [#14778](https://github.com/angular/angular/issues/14778)
* **language-service:** tolerate errors in decorators ([#14634](https://github.com/angular/angular/issues/14634)) ([6bae737](https://github.com/angular/angular/commit/6bae737)), closes [#14631](https://github.com/angular/angular/issues/14631)
* **platform-server:** don't setup Testability and TestabilityRegistry on the server ([#14510](https://github.com/angular/angular/issues/14510)) ([47bdc2b](https://github.com/angular/angular/commit/47bdc2b))
* **tsc-wrapped:** validate metadata in static members of a class ([#14772](https://github.com/angular/angular/issues/14772)) ([a6996a9](https://github.com/angular/angular/commit/a6996a9)), closes [#13481](https://github.com/angular/angular/issues/13481)
* **upgrade:** fix upgrade component Closure optimization. ([#14801](https://github.com/angular/angular/issues/14801)) ([968995a](https://github.com/angular/angular/commit/968995a))


### Performance Improvements

* delete pre-view-engine core, compiler, platform-browser, etc code ([#14788](https://github.com/angular/angular/issues/14788)) ([126fda2](https://github.com/angular/angular/commit/126fda2))
* **compiler:** make identifiers for generated code small to improve dev size ([5caab71](https://github.com/angular/angular/commit/5caab71f7dc64b10f3544b2a3b2650e1666adbf1))



<a name="4.0.0-rc.1"></a>
# [4.0.0-rc.1](https://github.com/angular/angular/compare/4.0.0-beta.8...4.0.0-rc.1) (2017-02-24)

We are excited to share 4.0.0-RC.1 with the community. This is a feature-complete pre-release of 4.0.0. Upgrade to get to know the new features to be released in 4.0.0, and to help us validate the release.

It’s important to note that this release has been tested extensively. All Angular applications within Google use the master branch of Angular, so every commit is tested and validated at scale prior to any release.

## We Need Your Help
Please give this RC a try and test it with your projects! We have spent a significant amount of time working to ensure that this release is backwards compatible and will work with your existing code, but you may have use cases we haven’t anticipated. If you are broken by this release, let us know so that we can look into it right away. We are also looking for feedback related to the ergonomics of any newly added APIs.

## What’s New

### View Engine
We’ve made changes under the hood to what AOT generated code looks like. These changes should reduce the size of the generated code for your components by more than half in some cases. Read the [Design Doc](https://docs.google.com/document/d/195L4WaDSoI_kkW094LlShH6gT3B7K1GZpSBnnLkQR-g/preview) for the View Engine updates.


### Enhanced `*ngIf` syntax
Our template binding syntax now supports a couple helpful changes. You can now use an if/else style syntax, and assign local variables such as when unrolling an observable.

```
<ng-template #loading>Loading...</ng-template>
<div *ngIf="userObservable | async; else loading; let user">
  {{ user.name }}
</div>
```


### Animation Package
We have pulled Animations into their own package. This means that if you don’t use Animations, this extra code will not end up in your production bundles. This also allows you to more easily find documentation and to take better advantage of autocompletion. If you do need animations, libraries like Material will automatically import the module (once you install it via NPM), or you can add it yourself to your main NgModule.


### TypeScript 2.1
We’ve updated Angular to a more recent version of TypeScript. This will improve the speed of `ngc` and you will get better type checking throughout your application.


### StrictNullChecks
Angular is now compliant with [TypeScript’s StrictNullChecks](https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-0.html). This means that you can enable StrictNullChecks in your project, if desired.


### Universal
Universal, the project that allows developers to run Angular on a server, is now up to date with Angular again, and has been adopted by the Angular team. This release now includes the results of the work from the Universal team over the last few months. The majority of the Universal code is now in platform-server. To learn more about this change, take a look the new [`renderModuleFactory`](https://github.com/angular/angular/blob/56f232cdd70a352cb9151bc7cfe8981bc2710ea6/modules/%40angular/platform-server/src/utils.ts#L63-L72) method, or Rob Wormald’s [Demo Repository](https://github.com/robwormald/ng-universal-demo/). More documentation is forthcoming.


<a name="flat-es-modules-esm"></a><!-- legacy anchor link, keep it here -->
### Flat ES Modules (Flat ESM / FESM)
We now ship flattened versions of our modules ("rolled up" version of our code in the EcmaScript Module format, see [example file](https://github.com/angular/core-builds/blob/85cbe3f8d6107af033b0f8b56456c181cbcb5eb7/%40angular/core.js)). This format should help tree-shaking, help reduce the size of your generated bundles, and speed up build, transpilation, and loading in the browser in certain scenarios.


### ES2015 Builds
We now also ship our packages in the ES2015 Flat ESM format. This option is experimental and opt-in (configure your webpack to resolve ["es2015" property](https://github.com/angular/core-builds/blob/dc0c8d828a8bae6591d2b9c77974271481af818c/package.json#L7) in package.json over the regular ["module" property](https://github.com/angular/core-builds/blob/dc0c8d828a8bae6591d2b9c77974271481af818c/package.json#L6)).


## Known Issues

The following is a list of known issues that will be fixed in the next rcs.

- Source maps are missing in npm packages
- Generated bundles will be larger temporarily while we validate new code paths and remove old ones
- angular.io docs have not been updated to reflect API changes in 4.0
- legacy UMD bundles don't have correct RxJS mappings when running in ES5 mode without a module system


## Installing RC.1
We have two main ways to update. If you have an existing project, you should be able to run:

On Linux/Mac: `npm install @angular/{common,compiler,compiler-cli,core,forms,http,platform-browser,platform-browser-dynamic,platform-server,router,animations}@next --save`
On Windows: `npm install @angular/common@next @angular/compiler@next @angular/compiler-cli@next @angular/core@next @angular/forms@next @angular/http@next @angular/platform-browser@next @angular/platform-browser-dynamic@next @angular/platform-server@next @angular/router@next @angular/animations@next --save`


Then run whatever `ng serve` or `npm start` command you normally use, and everything should work.

*Please ensure that you are using Typescript v2.1.6 or higher.*

*If you rely on Animations* you’ll also need to install the animations package `@angular/animations` and import the new `BrowserAnimationsModule` from `@angular/platform-browser/animations` in your root NgModule. Without this, your code will compile and run, but animations won’t activate.
Imports from `@angular/core` were deprecated, use imports from the new package `import { trigger, state, style, transition, animate } from '@angular/animations';`.

## What's next?
We have [three more release candidates scheduled](https://github.com/angular/angular/blob/master/docs/RELEASE_SCHEDULE.md) before our planned GA the week of March 22. In the meantime we'll be looking for your feedback, fixing bugs and working on docs.


## Commit Summary

### Features

* **compiler:** Add a `enableLegacyTemplate` option to support `<template>` ([e99d721](https://github.com/angular/angular/commit/e99d721))
* **compiler:** introduce `<ng-template>`, deprecate `<template>` and `template` attribute ([bf8eb41](https://github.com/angular/angular/commit/bf8eb41))
* **compiler-cli:** add a `locale` option to ng-xi18n ([234f059](https://github.com/angular/angular/commit/234f059)), closes [#12303](https://github.com/angular/angular/issues/12303) [#14537](https://github.com/angular/angular/issues/14537)
* **compiler-cli:** add an `outFile` option to ng-xi18n ([39f56fa](https://github.com/angular/angular/commit/39f56fa)), closes [#11416](https://github.com/angular/angular/issues/11416) [#14508](https://github.com/angular/angular/issues/14508) [#14657](https://github.com/angular/angular/issues/14657)
* **core:** enable new view engine ([d3a98c7](https://github.com/angular/angular/commit/d3a98c7))
* **core:** make `new Inject()` optional for deps specified as `InjectionToken` ([#14486](https://github.com/angular/angular/issues/14486)) ([d6a58f9](https://github.com/angular/angular/commit/d6a58f9)), closes [#10625](https://github.com/angular/angular/issues/10625)
* **core:** add a PLATFORM_ID token that provides a platform id Object. ([#14647](https://github.com/angular/angular/issues/14647)) ([a1d4769](https://github.com/angular/angular/commit/a1d4769))
* **forms:** add option to use browser's native validation and angular forms ([#13566](https://github.com/angular/angular/issues/13566)) ([8742432](https://github.com/angular/angular/commit/8742432)), closes [#13573](https://github.com/angular/angular/issues/13573)
* **forms:** introduce AsyncValidator interface ([#13483](https://github.com/angular/angular/issues/13483)) ([551fe50](https://github.com/angular/angular/commit/551fe50)), closes [#13398](https://github.com/angular/angular/issues/13398)
* **router:** add `RouteConfigLoadStart` and `RouteConfigLoadEnd` events ([78e8814](https://github.com/angular/angular/commit/78e8814))
* **router:** add an option to rerun guards and resolvers when query changes ([c2e0f71](https://github.com/angular/angular/commit/c2e0f71)), closes [#14514](https://github.com/angular/angular/issues/14514) [#14567](https://github.com/angular/angular/issues/14567)
* **router:** add an option to rerun guards and resolvers when query changes ([#14624](https://github.com/angular/angular/issues/14624)) ([41da599](https://github.com/angular/angular/commit/41da599)), closes [#14514](https://github.com/angular/angular/issues/14514) [#14567](https://github.com/angular/angular/issues/14567)
* **router:** introduce RouteConfigLoaded event ([7df6f46](https://github.com/angular/angular/commit/7df6f46)), closes [#14036](https://github.com/angular/angular/issues/14036)


### Bug Fixes

* **common:** do not reference deprecated classes in providers ([#14523](https://github.com/angular/angular/issues/14523)) ([#14523](https://github.com/angular/angular/issues/14523)) ([a23634d](https://github.com/angular/angular/commit/a23634d)), closes [#14521](https://github.com/angular/angular/issues/14521)
* **core:** host bindings and host listeners for animations ([5049a50](https://github.com/angular/angular/commit/5049a50))
* **http:** Make ResponseOptionsArgs an interface ([#14607](https://github.com/angular/angular/issues/14607)) ([fbe4b76](https://github.com/angular/angular/commit/fbe4b76)), closes [#13708](https://github.com/angular/angular/issues/13708)
* **packaging:** properly build the core-testing bundle ([4301dce](https://github.com/angular/angular/commit/4301dce))
* **platform-webworker:** integrate review feedback ([601fd3e](https://github.com/angular/angular/commit/601fd3e)), closes [#14581](https://github.com/angular/angular/issues/14581)
* **router:** do not finish bootstrap until all the routes are resolved ([#14608](https://github.com/angular/angular/issues/14608)) ([2a191ca](https://github.com/angular/angular/commit/2a191ca)), closes [#12162](https://github.com/angular/angular/issues/12162) [#14155](https://github.com/angular/angular/issues/14155)
* app ids for better style tag management for ssr ([#14632](https://github.com/angular/angular/issues/14632)) ([88bc143](https://github.com/angular/angular/commit/88bc143))


### Code Refactoring

* **core:** deprecate `RootRenderer` / `Renderer` ([ccb636c](https://github.com/angular/angular/commit/ccb636c))
* **core:** change abstract classes for interfaces ([#12324](https://github.com/angular/angular/issues/12324)) ([ee747f7](https://github.com/angular/angular/commit/ee747f7)), closes [#10083](https://github.com/angular/angular/issues/10083)


### Performance Improvements

* distribute smaller bundled code and include es2015 bundle ([de795ea](https://github.com/angular/angular/commit/de795ea))


### BREAKING CHANGES

* core: Because all lifecycle hooks are now interfaces the code that uses 'extends' keyword will no longer compile. Introduced by ([ee747f7](https://github.com/angular/angular/commit/ee747f7)).

  To migrate the code follow the example below:

  Before:
  ```
  @Component()
  class SomeComponent extends OnInit {}
  ```
  After:
  ```
  @Component()
  class SomeComponent implements OnInit {}
  ```

  Based on our research we don't expect anyone to be affected by this change.

* `RootRenderer` cannot be used any more, use `RendererFactoryV2` instead. Introduced by ([ccb636c](https://github.com/angular/angular/commit/ccb636c)).

  Note: `Renderer` can still be injected/used, but is deprecated.

Note: the 4.0.0-rc.0 release on npm accidentally omitted one bug fix, so we cut rc.1 instead. oops :-)



<a name="4.0.0-beta.8"></a>
## [4.0.0-beta.8](https://github.com/angular/angular/compare/4.0.0-beta.7...4.0.0-beta.8) (2017-02-18)


### Features
* **packaging**: allow applications to turn on strictNullChecks mode in TypeScript ([#14382](https://github.com/angular/angular/pull/14382)) ([03e855a](https://github.com/angular/angular/commit/03e855ae8f9e9b86251320c7551a96092bd8b0c4))
* **common:** added typed overloaded for `AsyncPipe.transform()` ([#14367](https://github.com/angular/angular/issues/14367)) ([4da7925](https://github.com/angular/angular/commit/4da7925))
* **compiler:** add support for source map generation ([#14258](https://github.com/angular/angular/issues/14258)) ([7ac38aa](https://github.com/angular/angular/commit/7ac38aa)), closes [#14125](https://github.com/angular/angular/issues/14125)
* **compiler:** add target locale to the translation bundles ([#14290](https://github.com/angular/angular/issues/14290)) ([bb4db2d](https://github.com/angular/angular/commit/bb4db2d))
* **compiler:** generate shallow imports compiler generated references ([#14388](https://github.com/angular/angular/issues/14388)) ([8b81bb1](https://github.com/angular/angular/commit/8b81bb1))
* **compiler:** implement style encapsulation for new view engine ([#14518](https://github.com/angular/angular/issues/14518)) ([0fa3895](https://github.com/angular/angular/commit/0fa3895))
* **compiler:** integrate compiler with view engine - change detection tests work ([#14412](https://github.com/angular/angular/issues/14412)) ([e4e9dbe](https://github.com/angular/angular/commit/e4e9dbe))
* **compiler:** integrate compiler with view engine - main integration tests work ([#14284](https://github.com/angular/angular/issues/14284)) ([baa654a](https://github.com/angular/angular/commit/baa654a))
* **compiler:** integrate compiler with view engine ([#14487](https://github.com/angular/angular/issues/14487)) ([4e7752a](https://github.com/angular/angular/commit/4e7752a))
* **core:** add isStable Observable property to ApplicationRef to indicate when it's stable and unstable ([#14337](https://github.com/angular/angular/issues/14337)) ([c481798](https://github.com/angular/angular/commit/c481798))
* **platform-server:** add API to render Module and ModuleFactory to string ([#14381](https://github.com/angular/angular/issues/14381)) ([b4d444a](https://github.com/angular/angular/commit/b4d444a))
* **platform-server:** Implement PlatformLocation for platformServer() ([#14405](https://github.com/angular/angular/issues/14405)) ([9e28568](https://github.com/angular/angular/commit/9e28568))
* **platform-server:** support [@angular](https://github.com/angular)/http from [@angular](https://github.com/angular)/platform-server ([9559d3e](https://github.com/angular/angular/commit/9559d3e))
* **tsc-wrapped:** add an option to `ngc` to bundle metadata ([#14509](https://github.com/angular/angular/issues/14509)) ([3b89670](https://github.com/angular/angular/commit/3b89670))


### Bug Fixes

* **compiler:** disable non-components as an entry component ([#14335](https://github.com/angular/angular/issues/14335)) ([44bb337](https://github.com/angular/angular/commit/44bb337))
* **compiler:** improve error message for unknown elements ([#14373](https://github.com/angular/angular/issues/14373)) ([2c6dab9](https://github.com/angular/angular/commit/2c6dab9))
* **compiler:** improve error messages in aot compiler ([#14333](https://github.com/angular/angular/issues/14333)) ([a696f4a](https://github.com/angular/angular/commit/a696f4a))
* **compiler:** improve error msg for unknown properties on ([#14373](https://github.com/angular/angular/issues/14373)) ([e5a144d](https://github.com/angular/angular/commit/e5a144d)), closes [#14070](https://github.com/angular/angular/issues/14070)
* **core:** Remove ChangeDetectorRef Paramter from KeyValueDifferFactory and IterableDifferFactory ([#14311](https://github.com/angular/angular/issues/14311)) ([45cc444](https://github.com/angular/angular/commit/45cc444))
* **core:** suppress a Closure Compiler warning ([#14484](https://github.com/angular/angular/issues/14484)) ([2f2b65b](https://github.com/angular/angular/commit/2f2b65b))
* **forms:** getRawValue should correctly work with nested FormGroups/Arrays ([#12964](https://github.com/angular/angular/issues/12964)) ([1ece736](https://github.com/angular/angular/commit/1ece736)), closes [#12963](https://github.com/angular/angular/issues/12963)
* **http:** REVERT: remove dots from jsonp callback name ([#13219](https://github.com/angular/angular/issues/13219)) ([4676df5](https://github.com/angular/angular/commit/4676df5))
* **platform-browser:** allow to mix shadow dom with non shadow dom ([ab26b65](https://github.com/angular/angular/commit/ab26b65))
* **platform-browser:** should not throw for debug attrs containing $ ([#14353](https://github.com/angular/angular/issues/14353)) ([1cfbefe](https://github.com/angular/angular/commit/1cfbefe)), closes [#9566](https://github.com/angular/angular/issues/9566)
* **platform-browser:** should only add styles with native encapsulation in shadow DOM ([#14313](https://github.com/angular/angular/issues/14313)) ([53cf2ec](https://github.com/angular/angular/commit/53cf2ec)), closes [#7887](https://github.com/angular/angular/issues/7887)
* **platform-server:** allow multiple instances of platformServer and platformDynamicServer ([17486fd](https://github.com/angular/angular/commit/17486fd))
* **platform-server:** default unspecified sections of the url to empty string ([#14512](https://github.com/angular/angular/issues/14512)) ([612f120](https://github.com/angular/angular/commit/612f120))
* **platform-server:** read initial location from INITIAL_CONFIG if present ([56f232c](https://github.com/angular/angular/commit/56f232c))
* **platform-server:** reflect properties to attributes for known elements, for serialization ([047cda5](https://github.com/angular/angular/commit/047cda5))
* **platform-server:** render styles in app component instead of <head> ([30380d0](https://github.com/angular/angular/commit/30380d0))
* **upgrade:** Prevent property renaming for $inject. ([96d06f7](https://github.com/angular/angular/commit/96d06f7))


### DEPRECATIONS

* core: `KeyValueDifferFactory` and `IterableDifferFactory` no longer have `ChangeDetectorRef` as
  a parameter. It was not used and has been there for historical reasons. If you call
  `DifferFactory.create(...)` remove the `ChangeDetectorRef` argument. Introduced by ([#14311](https://github.com/angular/angular/pull/14311)).


### BREAKING CHANGES

* common: Classes that derive from `AsyncPipe` and override
`transform()` might not compile correctly. The much more common use of `async` pipe in
templates is unaffected. We expect no or little impact on apps from this change, file an issue if we break you. Introduced by ([#14367](https://github.com/angular/angular/issues/14367)) ([4da7925](https://github.com/angular/angular/commit/4da7925)).

  * Mitigation: Update derived classes of `AsyncPipe` that override `transform()` to include the type parameter overloads.



<a name="2.4.8"></a>
## [2.4.8](https://github.com/angular/angular/compare/2.4.7...2.4.8) (2017-02-18)


### Bug Fixes

* **forms:** getRawValue should correctly work with nested FormGroups/Arrays ([#12964](https://github.com/angular/angular/issues/12964)) ([ea7737e](https://github.com/angular/angular/commit/ea7737e)), closes [#12963](https://github.com/angular/angular/issues/12963)
* **http:** REVERT: remove dots from jsonp callback name ([#13219](https://github.com/angular/angular/issues/13219)) ([9ceb5d1](https://github.com/angular/angular/commit/9ceb5d1))
* **platform-browser:** should only add styles with native encapsulation in shadow DOM ([#14313](https://github.com/angular/angular/issues/14313)) ([fadaf1e](https://github.com/angular/angular/commit/fadaf1e)), closes [#7887](https://github.com/angular/angular/issues/7887)
* **router:** do not finish bootstrap until all the routes are resolved ([#14327](https://github.com/angular/angular/issues/14327)) ([541de26](https://github.com/angular/angular/commit/541de26)), closes [#12162](https://github.com/angular/angular/issues/12162)
* **upgrade:** correctly project content on downgraded components with structural directives ([#14274](https://github.com/angular/angular/issues/14274)) ([74cb575](https://github.com/angular/angular/commit/74cb575)), closes [#14260](https://github.com/angular/angular/issues/14260)
* **upgrade:** pass correct values to `ngOnChanges` for interpolation bindings ([#14400](https://github.com/angular/angular/issues/14400)) ([7c87c52](https://github.com/angular/angular/commit/7c87c52))



<a name="4.0.0-beta.7"></a>
## [4.0.0-beta.7](https://github.com/angular/angular/compare/4.0.0-beta.6...4.0.0-beta.7) (2017-02-09)


### Bug Fixes

* build and test fixes for TS 2.1 ([#13294](https://github.com/angular/angular/issues/13294)) ([ef32e6b](https://github.com/angular/angular/commit/ef32e6b))
* **benchmarks:** don’t force gc on the `profile` buttons ([#14345](https://github.com/angular/angular/issues/14345)) ([f6b5965](https://github.com/angular/angular/commit/f6b5965))
* **build:** make fsevents an optional dependency in npm ([#13945](https://github.com/angular/angular/issues/13945)) ([4370049](https://github.com/angular/angular/commit/4370049))
* **compiler-cli:** prevent ng-xi18n from emitting the compilation output ([#14115](https://github.com/angular/angular/issues/14115)) ([e58d683](https://github.com/angular/angular/commit/e58d683)), closes [#13567](https://github.com/angular/angular/issues/13567)
* **tsc-wrapped:** use tsickle's new source map composition feature ([#14150](https://github.com/angular/angular/issues/14150)) ([5bccff0](https://github.com/angular/angular/commit/5bccff0))
* **upgrade:** pass correct values to `ngOnChanges` for interpolation bindings ([#14301](https://github.com/angular/angular/issues/14301)) ([1e3dd3d](https://github.com/angular/angular/commit/1e3dd3d))


### Performance Improvements

* **upgrade:** unregister `$doCheck` watcher when destroying upgraded component ([#14303](https://github.com/angular/angular/issues/14303)) ([94312f0](https://github.com/angular/angular/commit/94312f0))
* Don’t subclass Error; resulting in smaller binary ([#14160](https://github.com/angular/angular/issues/14160)) ([c33fda2](https://github.com/angular/angular/commit/c33fda2))


### BREAKING CHANGES

* Angular 4 will support only TypeScript 2.1, so we no longer provide backwards compatibility to TS 1.8.



<a name="2.4.7"></a>
## [2.4.7](https://github.com/angular/angular/compare/2.4.6...2.4.7) (2017-02-09)


### Bug Fixes

* **upgrade:** allow non-element selectors for downgraded components ([#14291](https://github.com/angular/angular/issues/14291)) ([5bb47db](https://github.com/angular/angular/commit/5bb47db))


<a name="4.0.0-beta.6"></a>
## [4.0.0-beta.6](https://github.com/angular/angular/compare/4.0.0-beta.5...4.0.0-beta.6) (2017-02-03)


### Bug Fixes

* suppress some closure compiler warnings ([#14198](https://github.com/angular/angular/issues/14198)) ([2205829](https://github.com/angular/angular/commit/2205829))
* **common:** add PopStateEvent interface ([#13400](https://github.com/angular/angular/issues/13400)) ([fe44118](https://github.com/angular/angular/commit/fe44118)), closes [#13378](https://github.com/angular/angular/issues/13378)
* **common:** DatePipe shouldn't throw for NaN ([#14117](https://github.com/angular/angular/issues/14117)) ([7ad616a](https://github.com/angular/angular/commit/7ad616a)), closes [#14103](https://github.com/angular/angular/issues/14103)
* **common:** DatePipe should parses input string even if it's not a valid date in browser ([#13895](https://github.com/angular/angular/issues/13895)) ([093cc04](https://github.com/angular/angular/commit/093cc04)), closes [#12334](https://github.com/angular/angular/issues/12334) [#13874](https://github.com/angular/angular/issues/13874)
* **common:** use Symbol.observable to detect observables rather then presence of .subscribe ([#14067](https://github.com/angular/angular/issues/14067)) ([ff290af](https://github.com/angular/angular/commit/ff290af)), closes [#8848](https://github.com/angular/angular/issues/8848)
* **compiler:** allow empty translations for attributes ([#14085](https://github.com/angular/angular/issues/14085)) ([05b2b49](https://github.com/angular/angular/commit/05b2b49)), closes [#13897](https://github.com/angular/angular/issues/13897)
* avoid closure compiler warning ([#14229](https://github.com/angular/angular/issues/14229)) ([1bc5368](https://github.com/angular/angular/commit/1bc5368))
* **router:** should allow navigation from root component in ngOnInit hook ([#13932](https://github.com/angular/angular/issues/13932)) ([47d41d4](https://github.com/angular/angular/commit/47d41d4)), closes [#13795](https://github.com/angular/angular/issues/13795)
* failing integration test ([8270bec](https://github.com/angular/angular/commit/8270bec))
* lint errors to make circle-ci green ([e0e5e78](https://github.com/angular/angular/commit/e0e5e78))
* **router:** should find guard provided in a lazy loaded module ([#13929](https://github.com/angular/angular/issues/13929)) ([e075b1b](https://github.com/angular/angular/commit/e075b1b)), closes [#13530](https://github.com/angular/angular/issues/13530)
* ngModel should use rxjs/symbol/observable to detect observable ([#14236](https://github.com/angular/angular/issues/14236)) ([a7479f6](https://github.com/angular/angular/commit/a7479f6))
* **compiler:** allow expressions or functions in extends ([#14158](https://github.com/angular/angular/issues/14158)) ([b4214d6](https://github.com/angular/angular/commit/b4214d6)), closes [#14154](https://github.com/angular/angular/issues/14154)
* **compiler:** fix missing translations handling ([#14113](https://github.com/angular/angular/issues/14113)) ([827c3fe](https://github.com/angular/angular/commit/827c3fe))
* **compiler:** only lex messages that are needed by angular ([#14208](https://github.com/angular/angular/issues/14208)) ([5921c87](https://github.com/angular/angular/commit/5921c87))
* **core:** add bootstrapped modules into platform modules list ([#13740](https://github.com/angular/angular/issues/13740)) ([863285a](https://github.com/angular/angular/commit/863285a)), closes [#12015](https://github.com/angular/angular/issues/12015)
* **core:** ViewContainerRef.indexOf should not throw error when empty ([#13220](https://github.com/angular/angular/issues/13220)) ([a277e97](https://github.com/angular/angular/commit/a277e97))
* **forms:** async validator cancels previous subscription when input has changed ([#13222](https://github.com/angular/angular/issues/13222)) ([6c7300c](https://github.com/angular/angular/commit/6c7300c)), closes [#12709](https://github.com/angular/angular/issues/12709) [#9120](https://github.com/angular/angular/issues/9120) [#10074](https://github.com/angular/angular/issues/10074) [#8923](https://github.com/angular/angular/issues/8923)
* **forms:** fix broken unit test ([#14179](https://github.com/angular/angular/issues/14179)) ([1df9319](https://github.com/angular/angular/commit/1df9319))
* **forms:** show a blank line when nothing is selected in IE or Edge ([#13903](https://github.com/angular/angular/issues/13903)) ([029f558](https://github.com/angular/angular/commit/029f558)), closes [#10010](https://github.com/angular/angular/issues/10010)
* **forms:** verify functions passed into async validators returns Observable or Promise ([#14053](https://github.com/angular/angular/issues/14053)) ([94f84c5](https://github.com/angular/angular/commit/94f84c5))
* **http:** remove dots from jsonp callback name ([#13219](https://github.com/angular/angular/issues/13219)) ([9e5617e](https://github.com/angular/angular/commit/9e5617e))
* **http:** use params without RequestOptions ([#14101](https://github.com/angular/angular/issues/14101)) ([5f2b317](https://github.com/angular/angular/commit/5f2b317)), closes [#14100](https://github.com/angular/angular/issues/14100)
* **language-service:** do not crash when Angular cannot be located ([#14123](https://github.com/angular/angular/issues/14123)) ([49fb814](https://github.com/angular/angular/commit/49fb814)), closes [#14122](https://github.com/angular/angular/issues/14122)
* **platform-browser:** remove style nodes on destroy ([#13744](https://github.com/angular/angular/issues/13744)) ([cd3901f](https://github.com/angular/angular/commit/cd3901f)), closes [#11746](https://github.com/angular/angular/issues/11746)
* **router:** fix CanActivateChild guard provided in a lazy loaded module ([#13989](https://github.com/angular/angular/issues/13989)) ([579567c](https://github.com/angular/angular/commit/579567c)), closes [#12275](https://github.com/angular/angular/issues/12275)
* **testing:** async/fakeAsync/inject/withModule helpers should pass through context to callback functions ([#13718](https://github.com/angular/angular/issues/13718)) ([5f40e5b](https://github.com/angular/angular/commit/5f40e5b))
* **upgrade:** detect async downgrade component changes ([#14039](https://github.com/angular/angular/issues/14039)) ([20b454c](https://github.com/angular/angular/commit/20b454c)), closes [#6385](https://github.com/angular/angular/issues/6385) [#6385](https://github.com/angular/angular/issues/6385)
* **upgrade:** respect hierarchical injectors for downgraded components ([#14037](https://github.com/angular/angular/issues/14037)) ([1367cd9](https://github.com/angular/angular/commit/1367cd9))
* **compiler:** improve error messages in aot compiler ([#14017](https://github.com/angular/angular/issues/14017)) ([665dde2](https://github.com/angular/angular/commit/665dde2))


### Features

* **aio:** add initial angular-cli scaffold ([#14118](https://github.com/angular/angular/issues/14118)) ([e130bc1](https://github.com/angular/angular/commit/e130bc1))
* **common:** rename underlying `NgFor` class and add a type parameter ([#14104](https://github.com/angular/angular/issues/14104)) ([86b2b25](https://github.com/angular/angular/commit/86b2b25))
* **compiler:** allow missing translations ([#14113](https://github.com/angular/angular/issues/14113)) ([8775ab9](https://github.com/angular/angular/commit/8775ab9)), closes [#13861](https://github.com/angular/angular/issues/13861)
* **compiler:** do not parse xtb messages not needed by angular ([#14111](https://github.com/angular/angular/issues/14111)) ([f7fba74](https://github.com/angular/angular/commit/f7fba74)), closes [#14046](https://github.com/angular/angular/issues/14046)
* **compiler:** generate type parameters for generic type references ([#14104](https://github.com/angular/angular/issues/14104)) ([69e14b5](https://github.com/angular/angular/commit/69e14b5))
* **core:** add query support to view engine ([1e729d7](https://github.com/angular/angular/commit/1e729d7)), closes [#14084](https://github.com/angular/angular/issues/14084)
* **forms:** add email validator ([#13709](https://github.com/angular/angular/issues/13709)) ([d69717c](https://github.com/angular/angular/commit/d69717c)), closes [#13706](https://github.com/angular/angular/issues/13706)
* **forms:** add equalsTo validator ([#14052](https://github.com/angular/angular/issues/14052)) ([7b7ae5f](https://github.com/angular/angular/commit/7b7ae5f))
* **core:** add NgModule support to NgComponentOutlet directive ([#14088](https://github.com/angular/angular/issues/14088)) ([3ef73c2](https://github.com/angular/angular/commit/3ef73c2)), closes [#14043](https://github.com/angular/angular/issues/14043)
* **router:** deprecate preserveQueryParams,add queryParamsHandling ([#14095](https://github.com/angular/angular/issues/14095)) ([c87c3be](https://github.com/angular/angular/commit/c87c3be))
* **tsc-wrapped:** record arity of generic classes ([#14104](https://github.com/angular/angular/issues/14104)) ([1079b93](https://github.com/angular/angular/commit/1079b93))
* **upgrade:** allow non-element selectors for downgraded components ([#14037](https://github.com/angular/angular/issues/14037)) ([9aafdc7](https://github.com/angular/angular/commit/9aafdc7))
* **upgrade:** export VERSION from `upgrade/static` ([#14037](https://github.com/angular/angular/issues/14037)) ([7670cc1](https://github.com/angular/angular/commit/7670cc1))
* **upgrade:** return a function (instead of array) from `downgradeInjectable()` ([#14037](https://github.com/angular/angular/issues/14037)) ([1f90f29](https://github.com/angular/angular/commit/1f90f29))
* **forms:** provide a method to compare options ([#13349](https://github.com/angular/angular/issues/13349)) ([f89d004](https://github.com/angular/angular/commit/f89d004)), closes [#13268](https://github.com/angular/angular/issues/13268)


### Performance Improvements

* use abstract keyword where possible to decrease file size. ([#14112](https://github.com/angular/angular/issues/14112)) ([670b680](https://github.com/angular/angular/commit/670b680))
* **core** simplify ReflectiveInjector by removing code for Dart implementation ([#14126](https://github.com/angular/angular/issues/14126)) ([670b680](https://github.com/angular/angular/commit/670b680))


### BREAKING CHANGES

* common: A definition of `Iterable<T>` is now required to correctly compile
Angular applications. Support for `Iterable<T>` is not required at
runtime but a type definition `Iterable<T>` must be available.

`NgFor`, and now `NgForOf<T>`, already supports `Iterable<T>` at
runtime. With this change the type definition is updated to reflect
this support.

Migration:
- add "es2015.iterable.ts" to your tsconfig.json "libs" fields.

Part of #12398
* upgrade: Previously, `upgrade/static/downgradeInjectable` returned an array of the form:

```js
['dep1', 'dep2', ..., function factory(dep1, dep2, ...) { ... }]
```

Now it returns a function with an `$inject` property:

```js
factory.$inject = ['dep1', 'dep2', ...];
function factory(dep1, dep2, ...) { ... }
```

It shouldn't affect the behavior of apps, since both forms are equally suitable
to be used for registering AngularJS injectable services, but it is possible
that type-checking might fail or that current code breaks if it relies on the
returned value being an array.



<a name="2.4.6"></a>
## [2.4.6](https://github.com/angular/angular/compare/2.4.5...2.4.6) (2017-02-03)


### Bug Fixes

* **common:** add PopStateEvent interface ([#13400](https://github.com/angular/angular/issues/13400)) ([71567d1](https://github.com/angular/angular/commit/71567d1)), closes [#13378](https://github.com/angular/angular/issues/13378)
* **common:** DatePipe does't throw for NaN ([#14117](https://github.com/angular/angular/issues/14117)) ([32cc675](https://github.com/angular/angular/commit/32cc675)), closes [#14103](https://github.com/angular/angular/issues/14103)
* **common:** DatePipe parses input string if it's not a valid date in browser ([#13895](https://github.com/angular/angular/issues/13895)) ([e641636](https://github.com/angular/angular/commit/e641636)), closes [#12334](https://github.com/angular/angular/issues/12334) [#13874](https://github.com/angular/angular/issues/13874)
* **common:** introduce isObservable method ([#14067](https://github.com/angular/angular/issues/14067)) ([109f0d1](https://github.com/angular/angular/commit/109f0d1)), closes [#8848](https://github.com/angular/angular/issues/8848)
* **compiler:** allow empty translations for attributes ([#14085](https://github.com/angular/angular/issues/14085)) ([f3d5506](https://github.com/angular/angular/commit/f3d5506)), closes [#13897](https://github.com/angular/angular/issues/13897)
* **core:** add bootstrapped modules into platform modules list ([#13740](https://github.com/angular/angular/issues/13740)) ([250dbc4](https://github.com/angular/angular/commit/250dbc4)), closes [#12015](https://github.com/angular/angular/issues/12015)
* **core:** ViewContainerRef.indexOf should not throw error when empty ([#13220](https://github.com/angular/angular/issues/13220)) ([41b8d95](https://github.com/angular/angular/commit/41b8d95))
* **forms:** show a blank line when nothing is selected in IE or Edge ([#13903](https://github.com/angular/angular/issues/13903)) ([09e2d20](https://github.com/angular/angular/commit/09e2d20)), closes [#10010](https://github.com/angular/angular/issues/10010)
* **forms:** verify functions passed into async validators returns Observable or Promise ([#14053](https://github.com/angular/angular/issues/14053)) ([774e1db](https://github.com/angular/angular/commit/774e1db))
* ngModel should use rxjs/symbol/observable to detect observable ([#14236](https://github.com/angular/angular/issues/14236)) ([7e639aa](https://github.com/angular/angular/commit/7e639aa))
* **http:** remove dots from jsonp callback name ([#13219](https://github.com/angular/angular/issues/13219)) ([1eece50](https://github.com/angular/angular/commit/1eece50))
* **i18n:** parse ICU messages while normalizing templates ([#14153](https://github.com/angular/angular/issues/14153)) ([8d4aa82](https://github.com/angular/angular/commit/8d4aa82))
* **language-service:** do not crash when Angular cannot be located ([#14123](https://github.com/angular/angular/issues/14123)) ([a5b4af0](https://github.com/angular/angular/commit/a5b4af0)), closes [#14122](https://github.com/angular/angular/issues/14122)
* **platform-browser:** remove style nodes on destroy ([#13744](https://github.com/angular/angular/issues/13744)) ([0614289](https://github.com/angular/angular/commit/0614289)), closes [#11746](https://github.com/angular/angular/issues/11746)
* **router:** fix CanActivate redirect to the root on initial load ([#13929](https://github.com/angular/angular/issues/13929)) ([a047124](https://github.com/angular/angular/commit/a047124)), closes [#13530](https://github.com/angular/angular/issues/13530)
* **router:** should find guard provided in a lazy loaded module ([#13989](https://github.com/angular/angular/issues/13989)) ([0965636](https://github.com/angular/angular/commit/0965636)), closes [#12275](https://github.com/angular/angular/issues/12275)
* **router:** should allow navigation from root component in ngOnInit hook ([#13932](https://github.com/angular/angular/issues/13932)) ([4d2901d](https://github.com/angular/angular/commit/4d2901d)), closes [#13795](https://github.com/angular/angular/issues/13795)
* **testing:** async/fakeAsync/inject/withModule helpers should pass through context to callback functions ([#13718](https://github.com/angular/angular/issues/13718)) ([70bbdf5](https://github.com/angular/angular/commit/70bbdf5))
* **upgrade:** detect async downgrade component changes ([#14039](https://github.com/angular/angular/issues/14039)) ([117fa79](https://github.com/angular/angular/commit/117fa79)), closes [#6385](https://github.com/angular/angular/issues/6385) [#6385](https://github.com/angular/angular/issues/6385)



<a name="4.0.0-beta.5"></a>
## [4.0.0-beta.5](https://github.com/angular/angular/compare/4.0.0-beta.3...4.0.0-beta.5) (2017-01-25)


### Bug Fixes

* **animations:** fix internal jscompiler issue and AOT quoting ([#13798](https://github.com/angular/angular/issues/13798)) ([c2aa981](https://github.com/angular/angular/commit/c2aa981))
* **common:** support numeric value as discrete cases for NgPlural ([#13876](https://github.com/angular/angular/issues/13876)) ([f364557](https://github.com/angular/angular/commit/f364557))
* **compiler:** [i18n] XMB/XTB placeholder names can contain only A-Z, 0-9, _n ([d02eab4](https://github.com/angular/angular/commit/d02eab4))
* **compiler:** fix regexp to support firefox 31 ([#14082](https://github.com/angular/angular/issues/14082)) ([b2f9d56](https://github.com/angular/angular/commit/b2f9d56)), closes [#14029](https://github.com/angular/angular/issues/14029) [#13900](https://github.com/angular/angular/issues/13900)
* **core:** export animation classes required for Renderer impl ([#14002](https://github.com/angular/angular/issues/14002)) ([83361d8](https://github.com/angular/angular/commit/83361d8)), closes [#14001](https://github.com/angular/angular/issues/14001)
* **core:** fix not declared variable in view engine ([#14045](https://github.com/angular/angular/issues/14045)) ([d3a3a8e](https://github.com/angular/angular/commit/d3a3a8e))
* **http:** don't create a blob out of ArrayBuffer when type is application/octet-stream ([#13992](https://github.com/angular/angular/issues/13992)) ([1200cf2](https://github.com/angular/angular/commit/1200cf2)), closes [#13973](https://github.com/angular/angular/issues/13973)
* **router:** enable loadChildren with function in aot ([#13909](https://github.com/angular/angular/issues/13909)) ([635bf02](https://github.com/angular/angular/commit/635bf02)), closes [#11075](https://github.com/angular/angular/issues/11075)
* **router:** routerLinkActive should not throw when not initialized ([#13273](https://github.com/angular/angular/issues/13273)) ([e8ea741](https://github.com/angular/angular/commit/e8ea741)), closes [#13270](https://github.com/angular/angular/issues/13270)
* **upgrade:** detect async downgrade component changes ([#13812](https://github.com/angular/angular/issues/13812)) ([d6382bf](https://github.com/angular/angular/commit/d6382bf)), closes [#6385](https://github.com/angular/angular/issues/6385) [#6385](https://github.com/angular/angular/issues/6385) [#10660](https://github.com/angular/angular/issues/10660) [#12318](https://github.com/angular/angular/issues/12318) [#12034](https://github.com/angular/angular/issues/12034)
* **upgrade/static:** ensure upgraded injector is initialized early enough ([#14065](https://github.com/angular/angular/issues/14065)) ([6152eb2](https://github.com/angular/angular/commit/6152eb2)), closes [#13811](https://github.com/angular/angular/issues/13811)


### Features

* **build:** optionally build an ES2015 distro ([#13471](https://github.com/angular/angular/issues/13471)) ([be6c95a](https://github.com/angular/angular/commit/be6c95a))
* **core:** add event support to view engine ([0adb97b](https://github.com/angular/angular/commit/0adb97b))
* **core:** add initial view engine ([#14014](https://github.com/angular/angular/issues/14014)) ([2f87eb5](https://github.com/angular/angular/commit/2f87eb5))
* **core:** add pure expression support to view engine ([6541737](https://github.com/angular/angular/commit/6541737))
* **core:** Add type information to injector.get() ([#13785](https://github.com/angular/angular/issues/13785)) ([d169c24](https://github.com/angular/angular/commit/d169c24))
* **security:** allow calc and gradient functions. ([#13943](https://github.com/angular/angular/issues/13943)) ([e19bf70](https://github.com/angular/angular/commit/e19bf70))
* **tsc-wrapped:** Support of vinyl like config file was added ([#13987](https://github.com/angular/angular/issues/13987)) ([0c7726d](https://github.com/angular/angular/commit/0c7726d))
* **upgrade:** Support ng-model in downgraded components ([#10578](https://github.com/angular/angular/issues/10578)) ([e21e9c5](https://github.com/angular/angular/commit/e21e9c5))

### DEPRECATIONS

* `OpaqueToken` is now deprecated, use `InjectionToken<T>` instead.
* `Injector.get(token: any, notFoundValue?: any): any` is now deprecated
  use the same method which is now overloaded as
  `Injector.get<T>(token: Type<T>|InjectionToken<T>, notFoundValue?: T): T;`

### BREAKING CHANGES

* core: - Because `injector.get()` is now parameterize it is possible that code
  which used to work no longer type checks. Example would be if one
  injects `Foo` but configures it as `{provide: Foo, useClass: MockFoo}`.
  The injection instance will be that of `MockFoo` but the type will be
  `Foo` instead of `any` as in the past. This means that it was possible
  to call a method on `MockFoo` in the past which now will fail type
  check. See this example:

```
class Foo {}
class MockFoo extends Foo {
  setupMock();
}

var PROVIDERS = [
  {provide: Foo, useClass: MockFoo}
];

...

function myTest(injector: Injector) {
  var foo = injector.get(Foo);
  // This line used to work since `foo` used to be `any` before this
  // change, it will now be `Foo`, and `Foo` does not have `setUpMock()`.
  // The fix is to downcast: `injector.get(Foo) as MockFoo`.
  foo.setUpMock();
}
```



<a name="2.4.5"></a>
## [2.4.5](https://github.com/angular/angular/compare/2.4.4...2.4.5) (2017-01-25)


### Bug Fixes

* **compiler:** [i18n] XMB/XTB placeholder names can contain only A-Z, 0-9, _n ([5492fad](https://github.com/angular/angular/commit/5492fad))
* **compiler:** fix regexp to support firefox 31 ([#14082](https://github.com/angular/angular/issues/14082)) ([bd2eecb](https://github.com/angular/angular/commit/bd2eecb)), closes [#14029](https://github.com/angular/angular/issues/14029) [#13900](https://github.com/angular/angular/issues/13900)
* **core:** export animation classes required for Renderer impl ([#14002](https://github.com/angular/angular/issues/14002)) ([fd4f9ac](https://github.com/angular/angular/commit/fd4f9ac)), closes [#14001](https://github.com/angular/angular/issues/14001)
* **upgrade:** ensure upgraded injector is initialized early enough ([#14065](https://github.com/angular/angular/issues/14065)) ([3b2fb23](https://github.com/angular/angular/commit/3b2fb23)), closes [#13811](https://github.com/angular/angular/issues/13811)



<a name="4.0.0-beta.4"></a>
## [4.0.0-beta.4](https://github.com/angular/angular/compare/4.0.0-beta.3...4.0.0-beta.4) (2017-01-19)


### Bug Fixes

* **animations:** fix internal jscompiler issue and AOT quoting ([#13798](https://github.com/angular/angular/issues/13798)) ([c2aa981](https://github.com/angular/angular/commit/c2aa981))
* **common:** support numeric value as discrete cases for NgPlural ([#13876](https://github.com/angular/angular/issues/13876)) ([f364557](https://github.com/angular/angular/commit/f364557))
* **http:** don't create a blob out of ArrayBuffer when type is application/octet-stream ([#13992](https://github.com/angular/angular/issues/13992)) ([1200cf2](https://github.com/angular/angular/commit/1200cf2)), closes [#13973](https://github.com/angular/angular/issues/13973)
* **router:** enable loadChildren with function in aot ([#13909](https://github.com/angular/angular/issues/13909)) ([635bf02](https://github.com/angular/angular/commit/635bf02)), closes [#11075](https://github.com/angular/angular/issues/11075)
* **router:** routerLinkActive should not throw when not initialized ([#13273](https://github.com/angular/angular/issues/13273)) ([e8ea741](https://github.com/angular/angular/commit/e8ea741)), closes [#13270](https://github.com/angular/angular/issues/13270)
* **security:** allow calc and gradient functions. ([#13943](https://github.com/angular/angular/issues/13943)) ([e19bf70](https://github.com/angular/angular/commit/e19bf70))
* **upgrade:** detect async downgrade component changes ([#13812](https://github.com/angular/angular/issues/13812)) ([d6382bf](https://github.com/angular/angular/commit/d6382bf)), closes [#6385](https://github.com/angular/angular/issues/6385) [#6385](https://github.com/angular/angular/issues/6385) [#10660](https://github.com/angular/angular/issues/10660) [#12318](https://github.com/angular/angular/issues/12318) [#12034](https://github.com/angular/angular/issues/12034)


### Features

* **build:** optionally build an ES2015 distro ([#13471](https://github.com/angular/angular/issues/13471)) ([be6c95a](https://github.com/angular/angular/commit/be6c95a))
* **core:** Add type information to injector.get() ([#13785](https://github.com/angular/angular/issues/13785)) ([d169c24](https://github.com/angular/angular/commit/d169c24))


### BREAKING CHANGES

* core: - Because `injector.get()` is now parameterized it is possible that code
  which used to work no longer type checks. Example would be if one
  injects `Foo` but configures it as `{provide: Foo, useClass: MockFoo}`.
  The injection instance will be that of `MockFoo` but the type will be
  `Foo` instead of `any` as in the past. This means that it was possible
  to call a method on `MockFoo` in the past which now will fail type
  check. See this example:

```
class Foo {}
class MockFoo extends Foo {
  setupMock();
}

var PROVIDERS = [
  {provide: Foo, useClass: MockFoo}
];

...

function myTest(injector: Injector) {
  var foo = injector.get(Foo);
  // This line used to work since `foo` used to be `any` before this
  // change, it will now be `Foo`, and `Foo` does not have `setUpMock()`.
  // The fix is to downcast: `injector.get(Foo) as MockFoo`.
  foo.setUpMock();
}
```



<a name="2.4.4"></a>
## [2.4.4](https://github.com/angular/angular/compare/2.4.3...2.4.4) (2017-01-19)

* **animations:** fix internal jscompiler issue and AOT quoting ([#13798](https://github.com/angular/angular/issues/13798)) ([261fd16](https://github.com/angular/angular/commit/261fd16))
* **common:** support numeric value as discrete cases for NgPlural ([#13876](https://github.com/angular/angular/issues/13876)) ([3d0b1b8](https://github.com/angular/angular/commit/3d0b1b8))
* **http:** don't create a blob out of ArrayBuffer when type is application/octet-stream ([#13992](https://github.com/angular/angular/issues/13992)) ([015878a](https://github.com/angular/angular/commit/015878a)), closes [#13973](https://github.com/angular/angular/issues/13973)
* **router:** enable loadChildren with function in aot ([#13909](https://github.com/angular/angular/issues/13909)) ([2af5862](https://github.com/angular/angular/commit/2af5862)), closes [#11075](https://github.com/angular/angular/issues/11075)
* **router:** routerLinkActive should not throw when not initialized ([#13273](https://github.com/angular/angular/issues/13273)) ([49c4b0f](https://github.com/angular/angular/commit/49c4b0f)), closes [#13270](https://github.com/angular/angular/issues/13270)
* **security:** allow calc and gradient functions. ([#13943](https://github.com/angular/angular/issues/13943)) ([bd15110](https://github.com/angular/angular/commit/bd15110))
* **upgrade:** detect async downgrade component changes ([#13812](https://github.com/angular/angular/issues/13812)) ([2250082](https://github.com/angular/angular/commit/2250082)), closes [#6385](https://github.com/angular/angular/issues/6385) [#6385](https://github.com/angular/angular/issues/6385) [#10660](https://github.com/angular/angular/issues/10660) [#12318](https://github.com/angular/angular/issues/12318) [#12034](https://github.com/angular/angular/issues/12034)



<a name="4.0.0-beta.3"></a>
## [4.0.0-beta.3](https://github.com/angular/angular/compare/4.0.0-beta.2...4.0.0-beta.3) (2017-01-11)


### Bug Fixes

* **compiler:** avoid evaluating arguments to unknown decorators ([d061adc](https://github.com/angular/angular/commit/d061adc)), closes [#13605](https://github.com/angular/angular/issues/13605)
* **compiler:** fix template binding parsing (`*directive="-..."`) ([e5c6bb4](https://github.com/angular/angular/commit/e5c6bb4)), closes [#13800](https://github.com/angular/angular/issues/13800)
* **compiler-cli:** add support for more than 2 levels of nested lazy routes ([5d9cbd7](https://github.com/angular/angular/commit/5d9cbd7)), closes [angular/angular-cli#3663](https://github.com/angular/angular-cli/issues/3663)
* **compiler-cli:** avoid handling functions in loadChildren as lazy load routes paths ([aeed737](https://github.com/angular/angular/commit/aeed737)), closes [angular/angular-cli#3204](https://github.com/angular/angular-cli/issues/3204)
* **core:** Add type information to  differs ([8c7e93b](https://github.com/angular/angular/commit/8c7e93b)), closes [#13382](https://github.com/angular/angular/issues/13382)
* **i18n:** translate attributes inside elements marked for translation ([424e6c4](https://github.com/angular/angular/commit/424e6c4)), closes [#13796](https://github.com/angular/angular/issues/13796) [#13814](https://github.com/angular/angular/issues/13814)
* **router:** RouterLink mirrors input `target` as attribute ([d9a22da](https://github.com/angular/angular/commit/d9a22da)), closes [#13837](https://github.com/angular/angular/issues/13837)
* **router:** throw an error when navigate to null/undefined path ([46cb04d](https://github.com/angular/angular/commit/46cb04d)), closes [#10560](https://github.com/angular/angular/issues/10560) [#13384](https://github.com/angular/angular/issues/13384)
* **router:** fix checking for object intersection ([6d29fae](https://github.com/angular/angular/commit/6d29fae))


### Features

* **animations:** expose the `element` value within transition events ([4bae4b3](https://github.com/angular/angular/commit/4bae4b3))
* **animations:** expose the `triggerName` within the transition event ([3f67ab0](https://github.com/angular/angular/commit/3f67ab0)), closes [#13600](https://github.com/angular/angular/issues/13600)
* **animations:** support function types in transitions ([9211a22](https://github.com/angular/angular/commit/9211a22)), closes [#13538](https://github.com/angular/angular/issues/13538) [#13537](https://github.com/angular/angular/issues/13537)
* **language-service:** support TS2.2 plugin model ([99aa49a](https://github.com/angular/angular/commit/99aa49a))
* **NgComponentOutlet:** add NgComponentOutlet directive ([8578682](https://github.com/angular/angular/commit/8578682)), closes [#11168](https://github.com/angular/angular/issues/11168)
* **NgTemplateOutlet:** Make NgTemplateOutlet compatible with * syntax ([c0178de](https://github.com/angular/angular/commit/c0178de))
* **router:** call resolver when upstream params change ([#12942](https://github.com/angular/angular/issues/12942)) ([d4d3782](https://github.com/angular/angular/commit/d4d3782))


### BREAKING CHANGES

* core: - `IterableChangeRecord` is now an interface and parameterized on `<V>`.
  This should not be an issue unless your code does
  `new IterableChangeRecord` which it should not have a reason to do.
- `KeyValueChangeRecord` is now an interface and parameterized on `<V>`.
  This should not be an issue unless your code does
  `new KeyValueChangeRecord` which it should not have a reason to do.

### DEPRECATION

* Deprecate `ngOutletContext`. Use `ngTemplateOutletContext` instead.
* `CollectionChangeRecord` is renamed to `IterableChangeRecord`.
  `CollectionChangeRecord` is aliased to `IterableChangeRecord` and is
  marked as `@deprecated`. It will be removed in `v6.x.x`.
* Deprecate `DefaultIterableDiffer` as it is private class which
  was erroneously exposed.
* Deprecate `KeyValueDiffers#factories` as it is private field which
  was erroneously exposed.
* Deprecate `IterableDiffers#factories` as it is private field which
  was erroneously exposed.



<a name="2.4.3"></a>
## [2.4.3](https://github.com/angular/angular/compare/2.4.2...2.4.3) (2017-01-11)


### Bug Fixes

* **compiler:** avoid evaluating arguments to unknown decorators ([5e9d3db](https://github.com/angular/angular/commit/5e9d3db)), closes [#13605](https://github.com/angular/angular/issues/13605)
* **compiler:** fix template binding parsing (`*directive="-..."`) ([7dc12b9](https://github.com/angular/angular/commit/7dc12b9)), closes [#13800](https://github.com/angular/angular/issues/13800)
* **compiler-cli:** add support for more than 2 levels of nested lazy routes ([6164eb2](https://github.com/angular/angular/commit/6164eb2)), closes [angular/angular-cli#3663](https://github.com/angular/angular-cli/issues/3663)
* **compiler-cli:** avoid handling functions in loadChildren as lazy load routes paths ([313683f](https://github.com/angular/angular/commit/313683f)), closes [angular/angular-cli#3204](https://github.com/angular/angular-cli/issues/3204)
* **i18n:** translate attributes inside elements marked for translation ([d7f2a3c](https://github.com/angular/angular/commit/d7f2a3c))
* **router:** RouterLink mirrors input `target` as attribute ([1c82b58](https://github.com/angular/angular/commit/1c82b58)), closes [#13837](https://github.com/angular/angular/issues/13837)
* **router:** throw an error when navigate to null/undefined path ([61ba223](https://github.com/angular/angular/commit/61ba223)), closes [#10560](https://github.com/angular/angular/issues/10560) [#13384](https://github.com/angular/angular/issues/13384)
* **router:** fix checking for object intersection ([1692265](https://github.com/angular/angular/commit/1692265))



<a name="2.4.2"></a>
## [2.4.2](https://github.com/angular/angular/compare/2.4.1...2.4.2) (2017-01-06)


### Bug Fixes

* **common:** add link to trackBy docs from the error message ([#13634](https://github.com/angular/angular/issues/13634)) ([f723437](https://github.com/angular/angular/commit/f723437))
* **common:** do not override locale provided on bootstrap ([#13654](https://github.com/angular/angular/issues/13654)) ([5f49c3e](https://github.com/angular/angular/commit/5f49c3e)), closes [#13607](https://github.com/angular/angular/issues/13607)
* **common:** allow null/undefined values for `NgForTrackBy` ([6be55cc](https://github.com/angular/angular/commit/6be55cc)), closes [#13641](https://github.com/angular/angular/issues/13641)
* **compiler:** don’t throw when using `ANALYZE_FOR_ENTRY_COMPONENTS` with user classes ([#13679](https://github.com/angular/angular/issues/13679)) ([230e33f](https://github.com/angular/angular/commit/230e33f)), closes [#13565](https://github.com/angular/angular/issues/13565)
* **compiler:** query `<template>` elements before their children. ([#13677](https://github.com/angular/angular/issues/13677)) ([1cd73c7](https://github.com/angular/angular/commit/1cd73c7)), closes [#13118](https://github.com/angular/angular/issues/13118) [#13167](https://github.com/angular/angular/issues/13167)
* **compiler:** allow "." in attribute selectors ([#13653](https://github.com/angular/angular/issues/13653)) ([29ffdfd](https://github.com/angular/angular/commit/29ffdfd)), closes [#13645](https://github.com/angular/angular/issues/13645) [#13982](https://github.com/angular/angular/issues/13982)
* **core:** animations no longer silently exits if the element is not apart of the DOM ([#13763](https://github.com/angular/angular/issues/13763)) ([f1cde43](https://github.com/angular/angular/commit/f1cde43))
* **core:** animations should blend in all previously transitioned styles into next animation if interrupted ([#13148](https://github.com/angular/angular/issues/13148)) ([b245b92](https://github.com/angular/angular/commit/b245b92))
* **core:** remove reference to "Angular 2" in dev mode warning ([#13751](https://github.com/angular/angular/issues/13751)) ([21f5f05](https://github.com/angular/angular/commit/21f5f05))
* **core/testing:** improve misleading error message when don't call compileComponents ([#13543](https://github.com/angular/angular/issues/13543)) ([0e7f9f0](https://github.com/angular/angular/commit/0e7f9f0)), closes [#11301](https://github.com/angular/angular/issues/11301)
* **forms:** Validators.required properly validate arrays ([#13362](https://github.com/angular/angular/issues/13362)) ([17c5fa9](https://github.com/angular/angular/commit/17c5fa9)), closes [#12274](https://github.com/angular/angular/issues/12274)
* **language-service:** support TypeScript 2.1 ([#13655](https://github.com/angular/angular/issues/13655)) ([56b4296](https://github.com/angular/angular/commit/56b4296))
* **router:** fix lazy loaded module with wildcard route ([#13649](https://github.com/angular/angular/issues/13649)) ([5754ecc](https://github.com/angular/angular/commit/5754ecc)), closes [#12955](https://github.com/angular/angular/issues/12955)
* **router:** routerLink support of null ([#13380](https://github.com/angular/angular/issues/13380)) ([018865e](https://github.com/angular/angular/commit/018865e)), closes [#6971](https://github.com/angular/angular/issues/6971)
* **router:** update route snapshot before emit new values ([#13558](https://github.com/angular/angular/issues/13558)) ([9f6a647](https://github.com/angular/angular/commit/9f6a647)), closes [#12912](https://github.com/angular/angular/issues/12912)
* **upgrade:** fix/improve support for lifecycle hooks ([#13020](https://github.com/angular/angular/issues/13020)) ([21942a8](https://github.com/angular/angular/commit/21942a8))



<a name="4.0.0-beta.2"></a>
## [4.0.0-beta.2](https://github.com/angular/angular/compare/4.0.0-beta.1...4.0.0-beta.2) (2017-01-06)


### Features

* **compiler:** generate less code for bindings to DOM elements ([db49d42](https://github.com/angular/angular/commit/db49d42))
* **compiler:** generate proper reexports in `.ngfactory.ts` files to not need transitive deps for compiling `.ngfactory.ts` files. ([#13524](https://github.com/angular/angular/issues/13524)) ([9c69703](https://github.com/angular/angular/commit/9c69703)), closes [#12787](https://github.com/angular/angular/issues/12787)
* **router:** add an extra argument to CanDeactivate interface ([#13560](https://github.com/angular/angular/issues/13560)) ([69fa3bb](https://github.com/angular/angular/commit/69fa3bb)), closes [#9853](https://github.com/angular/angular/issues/9853)


### Bug Fixes

* **compiler:** improve error message for undefined providers ([#13546](https://github.com/angular/angular/issues/13546)) ([6b02b80](https://github.com/angular/angular/commit/6b02b80)), closes [#10835](https://github.com/angular/angular/issues/10835)
* **compiler:** improve the error when template is not a string ([2c0c86e](https://github.com/angular/angular/commit/2c0c86e)), closes [#8708](https://github.com/angular/angular/issues/8708) [#13377](https://github.com/angular/angular/issues/13377)
* **compiler:** throw an error for invalid provider ([#13544](https://github.com/angular/angular/issues/13544)) ([445ed43](https://github.com/angular/angular/commit/445ed43)), closes [#8870](https://github.com/angular/angular/issues/8870)
* **i18n:** parse ICU messages while normalizing templates ([e74d8aa](https://github.com/angular/angular/commit/e74d8aa))

Note: 4.0.0-beta.2 release also contains all the changes present in the 2.4.2 release.


### BREAKING CHANGES

* **core**: `SimpleChange` now takes an additional argument that defines whether this is the first
change or not. This is a low profile API and we don't expect anyone to be affected by this change.
If you are impacted by this change please file an issue. ([465516b](https://github.com/angular/angular/commit/465516b))




<a name="4.0.0-beta.1"></a>
## [4.0.0-beta.1](https://github.com/angular/angular/compare/2.4.0-marker...4.0.0-beta.1) (2016-12-22)

### Features

* **upgrade:** support the `$doCheck()` lifecycle hook in `UpgradeComponent` ([#13015](https://github.com/angular/angular/issues/13015)) ([9da4c25](https://github.com/angular/angular/commit/9da4c25))

Note: 4.0.0-beta.1 release also contains all the changes present in the 2.4.0 and the 2.4.1 releases.

<a name="2.4.1"></a>
## [2.4.1](https://github.com/angular/angular/compare/2.4.0...2.4.1) (2016-12-21)

### Bug Fixes

* **animations:** always quote string map key values in AOT code ([#13602](https://github.com/angular/angular/issues/13602)) ([6a5e46c](https://github.com/angular/angular/commit/6a5e46c))
* **animations:** always recover from a failed animation step ([#13604](https://github.com/angular/angular/issues/13604)) ([d788c67](https://github.com/angular/angular/commit/d788c67))
* **compiler:** ignore `@import` in comments ([#13368](https://github.com/angular/angular/issues/13368)) ([6316e5d](https://github.com/angular/angular/commit/6316e5d)), closes [#12196](https://github.com/angular/angular/issues/12196)
* **core:** improve error message when component factory cannot be found ([#13541](https://github.com/angular/angular/issues/13541)) ([b9e979e](https://github.com/angular/angular/commit/b9e979e)), closes [#12678](https://github.com/angular/angular/issues/12678)
* **router:** should reset location if a navigation by location is successful ([#13545](https://github.com/angular/angular/issues/13545)) ([a38f14b](https://github.com/angular/angular/commit/a38f14b)), closes [#13491](https://github.com/angular/angular/issues/13491)



<a name="2.4.0"></a>
# [2.4.0 stability-interjection](https://github.com/angular/angular/compare/2.3.1...2.4.0) (2016-12-20)


### Bug Fixes

* **animations:** allow players to be destroyed before initialized ([#13346](https://github.com/angular/angular/issues/13346)) ([b36f4bc](https://github.com/angular/angular/commit/b36f4bc)), closes [#13293](https://github.com/angular/angular/issues/13293)
* **build:** use bash string comparison operator ([#13502](https://github.com/angular/angular/issues/13502)) ([50afbe0](https://github.com/angular/angular/commit/50afbe0))
* **compiler:** do not lex `}}` when interpolation is disabled ([#13531](https://github.com/angular/angular/issues/13531)) ([9b87bb6](https://github.com/angular/angular/commit/9b87bb6)), closes [#13525](https://github.com/angular/angular/issues/13525)
* **compiler-cli:** produce metadata for .d.ts files without metadata ([#13526](https://github.com/angular/angular/issues/13526)) ([debb0c9](https://github.com/angular/angular/commit/debb0c9)), closes [#13307](https://github.com/angular/angular/issues/13307) [#13473](https://github.com/angular/angular/issues/13473) [#13521](https://github.com/angular/angular/issues/13521)
* **i18n:** add a default example to xmb placeholders ([#13507](https://github.com/angular/angular/issues/13507)) ([3f17841](https://github.com/angular/angular/commit/3f17841))
* **upgrade:** fix `registerForNg1Tests` ([#13522](https://github.com/angular/angular/issues/13522)) ([c26c24c](https://github.com/angular/angular/commit/c26c24c))


### Features

* update to `rxjs@5.0.1` and unpin the rxjs peerDeps via `^5.0.1` ([#13572](https://github.com/angular/angular/issues/13572)) ([8d5da1e](https://github.com/angular/angular/commit/8d5da1e)), closes [#13561](https://github.com/angular/angular/issues/13561) [#13478](https://github.com/angular/angular/issues/13478)


<a name="4.0.0-beta.0"></a>
## [4.0.0-beta.0](https://github.com/angular/angular/compare/2.3.0...4.0.0-beta.0) (2016-12-15)


### Features

* **common:** add a `titlecase` pipe ([#13324](https://github.com/angular/angular/issues/13324)) ([61d7c1e](https://github.com/angular/angular/commit/61d7c1e)), closes [#11436](https://github.com/angular/angular/issues/11436)
* **common:** export NgLocaleLocalization ([#13367](https://github.com/angular/angular/issues/13367)) ([56dce0e](https://github.com/angular/angular/commit/56dce0e)), closes [#11921](https://github.com/angular/angular/issues/11921)
* **compiler:** add id property to i18nMessage ([6dd5201](https://github.com/angular/angular/commit/6dd5201))
* **compiler:** digest methods return i18nMessage id if sets ([562f7a2](https://github.com/angular/angular/commit/562f7a2))
* **forms:** add novalidate by default ([#13092](https://github.com/angular/angular/issues/13092)) ([4c35be3](https://github.com/angular/angular/commit/4c35be3))
* **http:** simplify URLSearchParams creation ([#13338](https://github.com/angular/angular/issues/13338)) ([90c2235](https://github.com/angular/angular/commit/90c2235)), closes [#8858](https://github.com/angular/angular/issues/8858)
* **language-service:** warn when a method isn't called in an event ([#13437](https://github.com/angular/angular/issues/13437)) ([9ec0a4e](https://github.com/angular/angular/commit/9ec0a4e))
* **platform browser:** introduce Meta service ([#12322](https://github.com/angular/angular/issues/12322)) ([72361fb](https://github.com/angular/angular/commit/72361fb))
* **router:** routerLink add tabindex attribute ([#13094](https://github.com/angular/angular/issues/13094)) ([a006c14](https://github.com/angular/angular/commit/a006c14)), closes [#10895](https://github.com/angular/angular/issues/10895)
* **testing:** add overrideTemplate method ([#13372](https://github.com/angular/angular/issues/13372)) ([169ed82](https://github.com/angular/angular/commit/169ed82)), closes [#10685](https://github.com/angular/angular/issues/10685)
* **common** ngIf now supports else; saves condition to local var ([b4db73d](https://github.com/angular/angular/commit/b4db73d)), closes [#13061](https://github.com/angular/angular/issues/13061) [#13297](https://github.com/angular/angular/issues/13297)

Note: 4.0.0-beta.0 release also contains all the changes present in the 2.3.1 release.

<a name="2.3.1"></a>
## [2.3.1](https://github.com/angular/angular/compare/2.3.0...2.3.1) (2016-12-15)


### Bug Fixes

* **animations:** always cleanup players after they have finished internally ([#13334](https://github.com/angular/angular/issues/13334)) ([a26e054](https://github.com/angular/angular/commit/a26e054)), closes [#13333](https://github.com/angular/angular/issues/13333)
* **animations:** throw errors and normalize offset beyond the range of [0,1] ([6557bc3](https://github.com/angular/angular/commit/6557bc3)), closes [#13348](https://github.com/angular/angular/issues/13348) [#13440](https://github.com/angular/angular/issues/13440)
* **compiler:** emit quoted object literal keys if the source is quoted ([ecfad46](https://github.com/angular/angular/commit/ecfad46)), closes [#13249](https://github.com/angular/angular/issues/13249) [#13356](https://github.com/angular/angular/issues/13356)
* **compiler:** fix merge error in compiler_host ([69b52eb](https://github.com/angular/angular/commit/69b52eb))
* **compiler:** fix PR 13322 ([#13331](https://github.com/angular/angular/issues/13331)) ([79728b4](https://github.com/angular/angular/commit/79728b4))
* **compiler:** fix simplify a reference without a name ([1c279b3](https://github.com/angular/angular/commit/1c279b3)), closes [#13470](https://github.com/angular/angular/issues/13470)
* **compiler:** fix transpiled ES5 code ([#13322](https://github.com/angular/angular/issues/13322)) ([6c1d790](https://github.com/angular/angular/commit/6c1d790)), closes [#13301](https://github.com/angular/angular/issues/13301)
* **compiler:** generated CSS files suffixed with ngstyle. ([#13353](https://github.com/angular/angular/issues/13353)) ([c8a9b70](https://github.com/angular/angular/commit/c8a9b70)), closes [#13141](https://github.com/angular/angular/issues/13141)
* **compiler:** make sure provider values with `name` property don’t break. ([efa2d80](https://github.com/angular/angular/commit/efa2d80)), closes [#13394](https://github.com/angular/angular/issues/13394) [#13445](https://github.com/angular/angular/issues/13445)
* **compiler:** narrow the span reported for invalid pipes ([307d305](https://github.com/angular/angular/commit/307d305)), closes [#13326](https://github.com/angular/angular/issues/13326) [#13411](https://github.com/angular/angular/issues/13411)
* **compiler:** propagate exports when upgrading metadata to v2 ([f6ef7d6](https://github.com/angular/angular/commit/f6ef7d6))
* **compiler:** resolver should merge host bindings and listeners ([#13474](https://github.com/angular/angular/issues/13474)) ([6aeaca3](https://github.com/angular/angular/commit/6aeaca3)), closes [#13327](https://github.com/angular/angular/issues/13327)
* **compiler:** support dotted property binding ([8db184d](https://github.com/angular/angular/commit/8db184d)), closes [angular/flex-layout#34](https://github.com/angular/flex-layout/issues/34)
* **compiler:** update to metadata version 3 ([#13464](https://github.com/angular/angular/issues/13464)) ([b9b557c](https://github.com/angular/angular/commit/b9b557c))
* **core:** detectChanges() doesn't work on detached instance ([4d6ac9d](https://github.com/angular/angular/commit/4d6ac9d)), closes [#13426](https://github.com/angular/angular/issues/13426) [#13472](https://github.com/angular/angular/issues/13472)
* **core:** properly destroy embedded Views attatched to ApplicationRef ([#13459](https://github.com/angular/angular/issues/13459)) ([d40bbf4](https://github.com/angular/angular/commit/d40bbf4)), closes [#13062](https://github.com/angular/angular/issues/13062)
* **core:** remove logError from logGroup ([#12925](https://github.com/angular/angular/issues/12925)) ([5fab871](https://github.com/angular/angular/commit/5fab871))
* **forms:** ensure `select[multiple]` retains selections ([b3dcff0](https://github.com/angular/angular/commit/b3dcff0)), closes [#12527](https://github.com/angular/angular/issues/12527) [#12654](https://github.com/angular/angular/issues/12654)
* **forms:** fix Validators.min/maxLength with FormArray ([#13095](https://github.com/angular/angular/issues/13095)) ([7383e4a](https://github.com/angular/angular/commit/7383e4a)), closes [#13089](https://github.com/angular/angular/issues/13089)
* **forms:** introduce checkbox required validator ([124267c](https://github.com/angular/angular/commit/124267c)), closes [#11459](https://github.com/angular/angular/issues/11459) [#13364](https://github.com/angular/angular/issues/13364)
* **http:** check response body text against undefined ([#13017](https://github.com/angular/angular/issues/13017)) ([f106a18](https://github.com/angular/angular/commit/f106a18))
* **http:** create a copy of headers when merge options ([#13365](https://github.com/angular/angular/issues/13365)) ([65c9b5b](https://github.com/angular/angular/commit/65c9b5b)), closes [#11980](https://github.com/angular/angular/issues/11980)
* **language-service:** correctly type `undefined` ([0a7364f](https://github.com/angular/angular/commit/0a7364f)), closes [#13412](https://github.com/angular/angular/issues/13412) [#13414](https://github.com/angular/angular/issues/13414)
* **compiler**: better error when directive not listed in NgModule.declarations ([b0cd514](https://github.com/angular/angular/commit/b0cd514))
* **language-service:** treat string unions as strings ([#13406](https://github.com/angular/angular/issues/13406)) ([14dd2b3](https://github.com/angular/angular/commit/14dd2b3)), closes [#13403](https://github.com/angular/angular/issues/13403)
* **router:** add support for query params with multiple values ([e4d5a5f](https://github.com/angular/angular/commit/e4d5a5f)), closes [#11373](https://github.com/angular/angular/issues/11373)
* **router:** Use T type in Resolve interface ([#13242](https://github.com/angular/angular/issues/13242)) ([5ee8155](https://github.com/angular/angular/commit/5ee8155))
* **selector:** SelectorMatcher match elements with :not selector ([#12977](https://github.com/angular/angular/issues/12977)) ([392c9ac](https://github.com/angular/angular/commit/392c9ac))
* **tsc-wrapped:** generate metadata for exports without module specifier ([cd03c77](https://github.com/angular/angular/commit/cd03c77)), closes [#13327](https://github.com/angular/angular/issues/13327)
* **upgrade:** fix downgrade content projection and injector inheritance ([86c5098](https://github.com/angular/angular/commit/86c5098)), closes [#6629](https://github.com/angular/angular/issues/6629) [#7727](https://github.com/angular/angular/issues/7727) [#8729](https://github.com/angular/angular/issues/8729) [#9643](https://github.com/angular/angular/issues/9643) [#9649](https://github.com/angular/angular/issues/9649) [#12675](https://github.com/angular/angular/issues/12675)
* **upgrade:** enable AngularJS unit testing of upgrade module ([2fc0560](https://github.com/angular/angular/commit/2fc0560)), closes [#5462](https://github.com/angular/angular/issues/5462) [#12675](https://github.com/angular/angular/issues/12675)


### Performance Improvements

* **animations:** always run the animation queue outside of zones ([e2622ad](https://github.com/angular/angular/commit/e2622ad)), closes [#13440](https://github.com/angular/angular/issues/13440)

### Note ###

Due to regression in the 2.3.0 release that was fixed by [#13464](https://github.com/angular/angular/pull/13464),
components that have been compiled using 2.3.0 and published to npm will need to be recompiled and republished.

The >=2.3.1 compiler will issue is the following error if it encounters components compiled with 2.3.0:
`Unsupported metadata version 2 for module ${module}. This module should be compiled with a newer version of ngc`.

We are adding more tests to our test suite to catch these kinds of problems before we cut a release.

<a name="2.3.0"></a>
# [2.3.0](https://github.com/angular/angular/compare/2.3.0-rc.0...2.3.0) (2016-12-07)


### Bug Fixes

* **common:** make sure the plural category exists ([#13169](https://github.com/angular/angular/issues/13169)) ([82c81cd](https://github.com/angular/angular/commit/82c81cd)), closes [#12379](https://github.com/angular/angular/issues/12379)
* **compiler:** include the summaries of reexported modules / directives / pipes ([#13196](https://github.com/angular/angular/issues/13196)) ([75d1617](https://github.com/angular/angular/commit/75d1617))
* **compiler:** serialize any `StaticSymbol` correctly, not matter in which context ([5614c4f](https://github.com/angular/angular/commit/5614c4f))
* **compiler:** short-circut expressions with an index ([#13263](https://github.com/angular/angular/issues/13263)) ([f31c947](https://github.com/angular/angular/commit/f31c947)), closes [#13254](https://github.com/angular/angular/issues/13254)
* **core:** display framework version on bootstrapped component ([#13252](https://github.com/angular/angular/issues/13252)) ([16efb13](https://github.com/angular/angular/commit/16efb13))
* **facade:** cache original format string ([#12764](https://github.com/angular/angular/issues/12764)) ([a132287](https://github.com/angular/angular/commit/a132287))
* **http:** set the default Accept header ([#12989](https://github.com/angular/angular/issues/12989)) ([986abbe](https://github.com/angular/angular/commit/986abbe)), closes [#6354](https://github.com/angular/angular/issues/6354)
* **language-service:** avoid throwing for invalid class declarations ([#13257](https://github.com/angular/angular/issues/13257)) ([93556a5](https://github.com/angular/angular/commit/93556a5)), closes [#13253](https://github.com/angular/angular/issues/13253)
* **language-service:** do not throw for invalid metadata ([#13261](https://github.com/angular/angular/issues/13261)) ([4a09c81](https://github.com/angular/angular/commit/4a09c81)), closes [#13255](https://github.com/angular/angular/issues/13255)
* **language-service:** remove incompletely used parameter from `createLanguageServiceFromTypescript()` ([#13278](https://github.com/angular/angular/issues/13278)) ([25c2141](https://github.com/angular/angular/commit/25c2141)), closes [#13277](https://github.com/angular/angular/issues/13277)
* **language-service:** update to use `CompilerHost` from compiler-cli ([#13189](https://github.com/angular/angular/issues/13189)) ([3ff6554](https://github.com/angular/angular/commit/3ff6554))
* **router:** allow specifying a matcher without specifying a path ([bbb7a39](https://github.com/angular/angular/commit/bbb7a39)), closes [#12972](https://github.com/angular/angular/issues/12972)
* **router:** fix replaceUrl on RouterLink directives ([349ad75](https://github.com/angular/angular/commit/349ad75))
* **router:** fix skipLocationChanges on RouterLink directives ([f562cbf](https://github.com/angular/angular/commit/f562cbf)), closes [#13156](https://github.com/angular/angular/issues/13156)
* **router:** make setUpLocationChangeListener idempotent ([25e5b2f](https://github.com/angular/angular/commit/25e5b2f))
* **router:** runs guards every time when unsuccessfully navigating to the same url over and over again ([#13209](https://github.com/angular/angular/issues/13209)) ([d46b8de](https://github.com/angular/angular/commit/d46b8de))
* **router:** throw a better error message when AngularJS is not bootstraped ([c767df0](https://github.com/angular/angular/commit/c767df0))
* **router:** validate nested routes ([#13224](https://github.com/angular/angular/issues/13224)) ([2893c2c](https://github.com/angular/angular/commit/2893c2c)), closes [#12827](https://github.com/angular/angular/issues/12827)
* **tsc-wrapped:** have UserError display the actual error ([393c100](https://github.com/angular/angular/commit/393c100))


### Features

* **compiler:** read and write `.ngsummary.json` files ([614a35d](https://github.com/angular/angular/commit/614a35d)), closes [#12787](https://github.com/angular/angular/issues/12787)



<a name="2.3.0-rc.0"></a>
# [2.3.0-rc.0](https://github.com/angular/angular/compare/2.3.0-beta.0...2.3.0-rc.0) (2016-11-30)


### Bug Fixes

* **animations:** blend in all previously transitioned styles into next animation if interrupted ([#13014](https://github.com/angular/angular/issues/13014)) ([ef96763](https://github.com/angular/angular/commit/ef96763)), closes [#13013](https://github.com/angular/angular/issues/13013)
* **benchmarks:** use sanitized style values ([#12943](https://github.com/angular/angular/issues/12943)) ([fc5ac1e](https://github.com/angular/angular/commit/fc5ac1e))
* **build:** update versions of umd bundles ([#13038](https://github.com/angular/angular/issues/13038)) ([86ffa88](https://github.com/angular/angular/commit/86ffa88)), closes [#13037](https://github.com/angular/angular/issues/13037)
* **changelog:** replace beta.1 with beta.0 ([#12961](https://github.com/angular/angular/issues/12961)) ([07a986d](https://github.com/angular/angular/commit/07a986d))
* **ci:** pin version of npm on CircleCI ([#12954](https://github.com/angular/angular/issues/12954)) ([a3884db](https://github.com/angular/angular/commit/a3884db))
* **closure:** quote date pattern aliases ([#13012](https://github.com/angular/angular/issues/13012)) ([7dcca30](https://github.com/angular/angular/commit/7dcca30))
* **common:** update DatePipe to allow closure compilation ([b2b7219](https://github.com/angular/angular/commit/b2b7219))
* **compiler:** correctly evaluate references to static functions ([#13133](https://github.com/angular/angular/issues/13133)) ([627282d](https://github.com/angular/angular/commit/627282d))
* **compiler:** fix performance regression caused by 5b0f9e2 ([43c0e9a](https://github.com/angular/angular/commit/43c0e9a)), closes [#13146](https://github.com/angular/angular/issues/13146)
* **compiler:** fix versions of `@angular/tsc-wrapped` ([bccf0e6](https://github.com/angular/angular/commit/bccf0e6))
* **compiler-cli:** fix paths in source maps to be relative ([2a3ca7b](https://github.com/angular/angular/commit/2a3ca7b)), closes [#13040](https://github.com/angular/angular/issues/13040)
* **compiler-cli:** pin the version of `tsc-wrapped` ([966bcba](https://github.com/angular/angular/commit/966bcba))
* **language-service:** harden against partial normalization of directives ([2975d89](https://github.com/angular/angular/commit/2975d89))
* **core:** shrinkwrap was out of date with packages. ([e45b7ff](https://github.com/angular/angular/commit/e45b7ff))
* **language-service:** make link check pass ([7194fc2](https://github.com/angular/angular/commit/7194fc2))
* **router:** guards restore an incorrect url when used with skipLocationChange ([ad20d7d](https://github.com/angular/angular/commit/ad20d7d)), closes [#12825](https://github.com/angular/angular/issues/12825)
* **router:** support redirects to named outlets ([602522b](https://github.com/angular/angular/commit/602522b)), closes [#12740](https://github.com/angular/angular/issues/12740) [#9921](https://github.com/angular/angular/issues/9921)
* **tsc-wrapped:** set correct version number ([897555c](https://github.com/angular/angular/commit/897555c))
* **tsc-wrapped:** still emit version 1 metadata to allow use of new components in old setups ([bc69c74](https://github.com/angular/angular/commit/bc69c74))
* **upgrade:** call ng1 lifecycle hooks ([#12875](https://github.com/angular/angular/issues/12875)) ([1ef4696](https://github.com/angular/angular/commit/1ef4696))
* **version:** take all of version string after patch version ([f275f36](https://github.com/angular/angular/commit/f275f36))


### Features

* **core:** update RxJS peer dependency to 5.0.0-rc.4 Please see [this gist](https://gist.github.com/robwormald/19dea0c70a6e01aadced6731aed4f9f7) if you depend on the `cache` operator ([2d6a003](https://github.com/angular/angular/commit/2d6a003)), closes [#13125](https://github.com/angular/angular/issues/13125)
* **core:** upgrade zone.js to v0.7.1 ([c4bbafc](https://github.com/angular/angular/commit/c4bbafc))
* **build:** record angular version in the dom ([#13164](https://github.com/angular/angular/issues/13164)) ([e628b66](https://github.com/angular/angular/commit/e628b66))
* **core:** expose destroy() method on ViewRef ([808275a](https://github.com/angular/angular/commit/808275a))
* **core:** properly support inheritance ([f5c8e09](https://github.com/angular/angular/commit/f5c8e09)), closes [#11606](https://github.com/angular/angular/issues/11606) [#12892](https://github.com/angular/angular/issues/12892)
* **language-service:** add services to support editors ([#12987](https://github.com/angular/angular/issues/12987)) ([519a324](https://github.com/angular/angular/commit/519a324))
* **router:** add support for custom route reuse strategies ([42cf06f](https://github.com/angular/angular/commit/42cf06f))
* **tools:** allow disabling annotation lowering ([c1a62e2](https://github.com/angular/angular/commit/c1a62e2))



<a name="2.2.4"></a>
## [2.2.4](https://github.com/angular/angular/compare/2.2.3...2.2.4) (2016-11-30)


### Bug Fixes

* **common:** update DatePipe to allow closure compilation ([eba53fd](https://github.com/angular/angular/commit/eba53fd))
* **compiler:** fix performance regression caused by 5b0f9e2 ([ee2d6e5](https://github.com/angular/angular/commit/ee2d6e5)), closes [#13146](https://github.com/angular/angular/issues/13146)
* **compiler-cli:** fix paths in source maps to be relative ([eb173bc](https://github.com/angular/angular/commit/eb173bc)), closes [#13040](https://github.com/angular/angular/issues/13040)



<a name="2.2.3"></a>
## [2.2.3](https://github.com/angular/angular/compare/2.2.2...2.2.3) (2016-11-23)

### Bug Fixes

* **compiler:** Revert: fix versions of `@angular/tsc-wrapped` ([015ca47](https://github.com/angular/angular/commit/015ca47))
* **animations:** Revert: blend in all previously transitioned styles into next animation if interrupted ([c12e56e](https://github.com/angular/angular/commit/c12e56e))



<a name="2.2.2"></a>
## [2.2.2](https://github.com/angular/angular/compare/2.2.1...2.2.2) (2016-11-22)


### Bug Fixes

* **animations:** blend in all previously transitioned styles into next animation if interrupted ([#13014](https://github.com/angular/angular/issues/13014)) ([ea4fc9b](https://github.com/angular/angular/commit/ea4fc9b)), closes [#13013](https://github.com/angular/angular/issues/13013)
* **benchmarks:** use sanitized style values ([#12943](https://github.com/angular/angular/issues/12943)) ([33a7902](https://github.com/angular/angular/commit/33a7902))
* **closure:** quote date pattern aliases ([#13012](https://github.com/angular/angular/issues/13012)) ([0956ace](https://github.com/angular/angular/commit/0956ace))
* **compiler:** fix versions of `@angular/tsc-wrapped` ([2fe6fb1](https://github.com/angular/angular/commit/2fe6fb1))
* **router:** add a banner file for the router ([#12919](https://github.com/angular/angular/issues/12919)) ([8df328b](https://github.com/angular/angular/commit/8df328b))
* **router:** add a banner file for the router ([#12919](https://github.com/angular/angular/issues/12919)) ([511cd4d](https://github.com/angular/angular/commit/511cd4d))
* **router:** removes a peer dependency from router to upgrade ([115f18f](https://github.com/angular/angular/commit/115f18f))
* **router:** removes a peer dependency from router to upgrade ([87d5d49](https://github.com/angular/angular/commit/87d5d49))
* **router:** support redirects to named outlets ([09226d9](https://github.com/angular/angular/commit/09226d9)), closes [#12740](https://github.com/angular/angular/issues/12740) [#9921](https://github.com/angular/angular/issues/9921)
* **upgrade:** call ng1 lifecycle hooks ([#12875](https://github.com/angular/angular/issues/12875)) ([462316b](https://github.com/angular/angular/commit/462316b))



<a name="2.3.0-beta.0"></a>
# [2.3.0-beta.0](https://github.com/angular/angular/compare/2.2.0...2.3.0-beta.0) (2016-11-17)

### Bug Fixes

* **compiler:** assert xliff messages have translations ([7908679](https://github.com/angular/angular/commit/7908679)), closes [#12815](https://github.com/angular/angular/issues/12815) [#12604](https://github.com/angular/angular/issues/12604)
* **compiler:** updates hash algo for xmb/xtb files ([2f14415](https://github.com/angular/angular/commit/2f14415))
* **core:** fix placeholders handling in i18n. ([76e4911](https://github.com/angular/angular/commit/76e4911)), closes [#12512](https://github.com/angular/angular/issues/12512)
* **core:** misc i18n fixes ([ed5e98d](https://github.com/angular/angular/commit/ed5e98d))
* **core:** xmb serializer uses decimal messaged IDs ([08c038e](https://github.com/angular/angular/commit/08c038e)), closes [#12511](https://github.com/angular/angular/issues/12511)
* **platform-browser:** enable AOT ([efbbefd](https://github.com/angular/angular/commit/efbbefd)), closes [#12783](https://github.com/angular/angular/issues/12783)

### Features

* **core:** add `attachView` / `detachView` to ApplicationRef ([9f7d32a](https://github.com/angular/angular/commit/9f7d32a)), closes [#9293](https://github.com/angular/angular/issues/9293)
* **core:** expose `ViewRef` as `ChangeDetectorRef` ([1b5384e](https://github.com/angular/angular/commit/1b5384e)), closes [#12722](https://github.com/angular/angular/issues/12722)
* **core:** implements a decimal fingerprint for i18n ([582550a](https://github.com/angular/angular/commit/582550a))
* **router:** register router with ngprobe ([c2fae72](https://github.com/angular/angular/commit/c2fae72))
* **router_link:** add skipLocationChange and replaceUrl inputs ([#12850](https://github.com/angular/angular/issues/12850)) ([46d1502](https://github.com/angular/angular/commit/46d1502))

Note: The 2.3.0-beta.0 release also contains all the changes present in the 2.2.1 release.



<a name="2.2.1"></a>
## [2.2.1](https://github.com/angular/angular/compare/2.2.0...2.2.1) (2016-11-17)


### Bug Fixes

* **animations:** only pass in same typed players as previous players into web-animations ([#12907](https://github.com/angular/angular/issues/12907)) ([583d283](https://github.com/angular/angular/commit/583d283))
* **animations:** retain styling when transition destinations are changed ([#12208](https://github.com/angular/angular/issues/12208)) ([5c46c49](https://github.com/angular/angular/commit/5c46c49)), closes [#9661](https://github.com/angular/angular/issues/9661)
* **core:** support `ngTemplateOutlet` in production mode ([#12921](https://github.com/angular/angular/issues/12921)) ([4628798](https://github.com/angular/angular/commit/4628798)), closes [#12911](https://github.com/angular/angular/issues/12911)
* **http:** correctly handle response body for 204 status code ([21a4de9](https://github.com/angular/angular/commit/21a4de9)), closes [#12830](https://github.com/angular/angular/issues/12830) [#12393](https://github.com/angular/angular/issues/12393)
* **http:** return request url if it cannot be retrieved from response ([845ea23](https://github.com/angular/angular/commit/845ea23)), closes [#12837](https://github.com/angular/angular/issues/12837)
* **upgrade:** make AoT ngUpgrade work with the testability API and resumeBootstrap() ([#12910](https://github.com/angular/angular/issues/12910)) ([dc1662a](https://github.com/angular/angular/commit/dc1662a))
* **platform-browser:** fix disableDebugTools() ([#12918](https://github.com/angular/angular/issues/12918)) ([7b67bad](https://github.com/angular/angular/commit/7b67bad))
* **router:** add a banner file for the router ([#12919](https://github.com/angular/angular/issues/12919)) ([364642d](https://github.com/angular/angular/commit/364642d))
* **router:** removes a peer dependency from router to upgrade ([1dcf1f4](https://github.com/angular/angular/commit/1dcf1f4))
* **forms** allow for null values in HTML select options bound with ngValue ([e0ce545](https://github.com/angular/angular/commit/e0ce545)), closes [#10349](https://github.com/angular/angular/issues/10349)
* **router:** should not create a route state if navigation is canceled ([#12868](https://github.com/angular/angular/issues/12868)) ([dabaf85](https://github.com/angular/angular/commit/dabaf85)), closes [#12776](https://github.com/angular/angular/issues/12776)
* **common:** select should allow for null values in HTML select options bound with ngValue ([e02c180](https://github.com/angular/angular/commit/e02c180)), closes [#12829](https://github.com/angular/angular/issues/12829)
* **compiler-cli:** support ctorParams in function closure ([#12876](https://github.com/angular/angular/issues/12876)) ([6cdc3b5](https://github.com/angular/angular/commit/6cdc3b5))


<a name="2.2.0"></a>
# [2.2.0 upgrade-firebooster](https://github.com/angular/angular/compare/2.2.0-rc.0...2.2.0) (2016-11-14)

### Features (summary of all features from 2.2.0-beta.0 - 2.2.0-rc.0 releases)

* **common:** support narrow forms for month and weekdays in DatePipe ([#12297](https://github.com/angular/angular/issues/12297)) ([f77ab6a](https://github.com/angular/angular/commit/f77ab6a)), closes [#12294](https://github.com/angular/angular/issues/12294)
* **core:** map 'for' attribute to 'htmlFor' property ([#10546](https://github.com/angular/angular/issues/10546)) ([634b3bb](https://github.com/angular/angular/commit/634b3bb)), closes [#7516](https://github.com/angular/angular/issues/7516)
* **core:** add the find method to QueryList ([7c16ef9](https://github.com/angular/angular/commit/7c16ef9))
* **forms:** add hasError and getError to AbstractControlDirective ([#11985](https://github.com/angular/angular/issues/11985)) ([592f40a](https://github.com/angular/angular/commit/592f40a)), closes [#7255](https://github.com/angular/angular/issues/7255)
* **forms:** add ng-pending CSS class during async validation ([#11243](https://github.com/angular/angular/issues/11243)) ([97bc971](https://github.com/angular/angular/commit/97bc971)), closes [#10336](https://github.com/angular/angular/issues/10336)
* **forms:** add emitEvent to AbstractControl methods ([#11949](https://github.com/angular/angular/issues/11949)) ([b9fc090](https://github.com/angular/angular/commit/b9fc090))
* **forms:** make 'parent' a public property of 'AbstractControl' ([#11855](https://github.com/angular/angular/issues/11855)) ([445e592](https://github.com/angular/angular/commit/445e592))
* **forms:** Validator.pattern accepts a RegExp ([#12323](https://github.com/angular/angular/issues/12323)) ([bf60418](https://github.com/angular/angular/commit/bf60418))
* **router:** add a provider making angular1/angular2 integration easier ([#12769](https://github.com/angular/angular/issues/12769)) ([6e35d13](https://github.com/angular/angular/commit/6e35d13))
* **router:** add support for custom url matchers ([7340735](https://github.com/angular/angular/commit/7340735)), closes [#12442](https://github.com/angular/angular/issues/12442) [#12772](https://github.com/angular/angular/issues/12772)
* **router:** export routerLinkActive w/ isActive property ([c9f58cf](https://github.com/angular/angular/commit/c9f58cf))
* **router:** add support for ng1/ng2 migration ([#12160](https://github.com/angular/angular/issues/12160)) ([8b9ab44](https://github.com/angular/angular/commit/8b9ab44))
* **upgrade:** add support for AoT compiled upgrade applications ([d6791ff](https://github.com/angular/angular/commit/d6791ff)), closes [#12239](https://github.com/angular/angular/issues/12239)
* **upgrade:** add support for `require` in UpgradeComponent ([fe1d0e2](https://github.com/angular/angular/commit/fe1d0e2))
* **upgrade:** add/improve support for lifecycle hooks in UpgradeComponent ([469010e](https://github.com/angular/angular/commit/469010e))



### Performance Improvements

* **compiler:** introduce direct rendering ([9c23884](https://github.com/angular/angular/commit/9c23884))
* **core:** don’t use `DomAdapter` nor zone for regular events ([648ce59](https://github.com/angular/angular/commit/648ce59))
* **core:** use `array.push` / `array.pop` instead of `splice` if possible ([0fc11a4](https://github.com/angular/angular/commit/0fc11a4))
* **platform-browser:** cache plugin resolution in the EventManager ([73593d4](https://github.com/angular/angular/commit/73593d4)), closes [#12824](https://github.com/angular/angular/issues/12824)
* **platform-browser:** don’t use `DomAdapter` any more ([d708a88](https://github.com/angular/angular/commit/d708a88))




### Bug Fixes

* **animations:** allow animations to be destroyed manually ([#12719](https://github.com/angular/angular/issues/12719)) ([fe35bc3](https://github.com/angular/angular/commit/fe35bc3)), closes [#12456](https://github.com/angular/angular/issues/12456)
* **animations:** always normalize style properties and values during compilation ([#12755](https://github.com/angular/angular/issues/12755)) ([a0e9fde](https://github.com/angular/angular/commit/a0e9fde)), closes [#11582](https://github.com/angular/angular/issues/11582) [#12481](https://github.com/angular/angular/issues/12481)
* **animations:** always trigger animations after the change detection check ([#12713](https://github.com/angular/angular/issues/12713)) ([383f23b](https://github.com/angular/angular/commit/383f23b))
* **animations:** ensure animations work with web-workers ([#12656](https://github.com/angular/angular/issues/12656)) ([19e869e](https://github.com/angular/angular/commit/19e869e))
* **animations:** ensure web-animations are caught within the Angular zone ([f80a157](https://github.com/angular/angular/commit/f80a157)), closes [#11881](https://github.com/angular/angular/issues/11881) [#11712](https://github.com/angular/angular/issues/11712) [#12355](https://github.com/angular/angular/issues/12355) [#11881](https://github.com/angular/angular/issues/11881) [#12546](https://github.com/angular/angular/issues/12546) [#12707](https://github.com/angular/angular/issues/12707) [#12774](https://github.com/angular/angular/issues/12774)
* **common:** `NgSwitch` - don’t create the default case if another case matches ([#12726](https://github.com/angular/angular/issues/12726)) ([d8f23f4](https://github.com/angular/angular/commit/d8f23f4)), closes [#11297](https://github.com/angular/angular/issues/11297) [#9420](https://github.com/angular/angular/issues/9420)
* **common:** I18nSelectPipe selects other case on default ([4708b24](https://github.com/angular/angular/commit/4708b24))
* **common:** no TZ Offset added by DatePipe for dates without time ([#12380](https://github.com/angular/angular/issues/12380)) ([2aba8b0](https://github.com/angular/angular/commit/2aba8b0))
* **common:** NgClass should throw a descriptive error when CSS class is not a string ([#12662](https://github.com/angular/angular/issues/12662)) ([f3793b5](https://github.com/angular/angular/commit/f3793b5)), closes [#12586](https://github.com/angular/angular/issues/12586)
* **common:** DatePipe should handle empty string ([#12374](https://github.com/angular/angular/issues/12374)) ([3dc6177](https://github.com/angular/angular/commit/3dc6177))
* **compiler:** don't convert undefined to null literals ([#11503](https://github.com/angular/angular/issues/11503)) ([f0cdb42](https://github.com/angular/angular/commit/f0cdb42)), closes [#11493](https://github.com/angular/angular/issues/11493)
* **compiler:** generate safe access strictNullChecks compatible code ([#12800](https://github.com/angular/angular/issues/12800)) ([a965d11](https://github.com/angular/angular/commit/a965d11)), closes [#12795](https://github.com/angular/angular/issues/12795)
* **compiler:** support more than 9 interpolations ([#12710](https://github.com/angular/angular/issues/12710)) ([22c021c](https://github.com/angular/angular/commit/22c021c)), closes [#10253](https://github.com/angular/angular/issues/10253)
* **compiler:** use the other case by default in ICU messages ([55dc0e4](https://github.com/angular/angular/commit/55dc0e4))
* **compiler-cli:** suppress closure compiler suspiciousCode check in codegen ([#12666](https://github.com/angular/angular/issues/12666)) ([7103754](https://github.com/angular/angular/commit/7103754))
* **compiler-cli:** suppress two more closure compiler checks in codegen ([#12698](https://github.com/angular/angular/issues/12698)) ([77cbf7f](https://github.com/angular/angular/commit/77cbf7f))
* **core:** allow to query content of templates that are stamped out at a different place ([f2bbef3](https://github.com/angular/angular/commit/f2bbef3)), closes [#12283](https://github.com/angular/angular/issues/12283) [#12094](https://github.com/angular/angular/issues/12094)
* **core:** apply host attributes to root elements ([#12761](https://github.com/angular/angular/issues/12761)) ([ad3bf6c](https://github.com/angular/angular/commit/ad3bf6c)), closes [#12744](https://github.com/angular/angular/issues/12744)
* **core:** ensure that component views that have no bindings recurse into nested components / view containers. ([051d748](https://github.com/angular/angular/commit/051d748))
* **core:** fix pseudo-selector shimming ([#12754](https://github.com/angular/angular/issues/12754)) ([acbf1d8](https://github.com/angular/angular/commit/acbf1d8)), closes [#12730](https://github.com/angular/angular/issues/12730) [#12354](https://github.com/angular/angular/issues/12354)
* **forms:** check if registerOnValidatorChange exists on validator before trying to invoke it ([#12801](https://github.com/angular/angular/issues/12801)) ([ef88147](https://github.com/angular/angular/commit/ef88147)), closes [#12593](https://github.com/angular/angular/issues/12593)
* **forms:** getRawValue returns any instead of Object ([#12599](https://github.com/angular/angular/issues/12599)) ([09092ac](https://github.com/angular/angular/commit/09092ac))
* **http:** preserve header case when copying headers ([#12697](https://github.com/angular/angular/issues/12697)) ([121e508](https://github.com/angular/angular/commit/121e508))
* **router:** advance a route only after its children have been deactivated ([#12676](https://github.com/angular/angular/issues/12676)) ([9ddf9b3](https://github.com/angular/angular/commit/9ddf9b3)), closes [#11715](https://github.com/angular/angular/issues/11715)
* **router:** avoid router initialization for non root components ([2a4bf9a](https://github.com/angular/angular/commit/2a4bf9a)), closes [#12338](https://github.com/angular/angular/issues/12338) [#12814](https://github.com/angular/angular/issues/12814)
* **router:** check if windows.console exists before using it ([#12348](https://github.com/angular/angular/issues/12348)) ([7886561](https://github.com/angular/angular/commit/7886561))
* **router:** correctly export concatMap operator in es5 ([#12430](https://github.com/angular/angular/issues/12430)) ([e25baa0](https://github.com/angular/angular/commit/e25baa0))
* **router:** do not require the creation of empty-path routes when no url left ([2c11093](https://github.com/angular/angular/commit/2c11093)), closes [#12133](https://github.com/angular/angular/issues/12133)
* **router:** ignore null or undefined query parameters ([#12333](https://github.com/angular/angular/issues/12333)) ([3052fb2](https://github.com/angular/angular/commit/3052fb2))
* **router:** incorrect injector is used when instantiating components loaded lazily ([#12817](https://github.com/angular/angular/issues/12817)) ([52be848](https://github.com/angular/angular/commit/52be848))
* **router:** resolve guard observables on the first emit ([#10412](https://github.com/angular/angular/issues/10412)) ([2e78b76](https://github.com/angular/angular/commit/2e78b76))
* **router:** Route.isActive also compares query params ([#12321](https://github.com/angular/angular/issues/12321)) ([785b7b6](https://github.com/angular/angular/commit/785b7b6))
* **router:** router should not swallow "unhandled" errors ([e5a753e](https://github.com/angular/angular/commit/e5a753e)), closes [#12802](https://github.com/angular/angular/issues/12802)
* **router:** throw an error when encounter undefined route ([#12389](https://github.com/angular/angular/issues/12389)) ([77dc1ab](https://github.com/angular/angular/commit/77dc1ab))
* **platform-browser:** enableDebugTools should create AngularTools by merging into context.ng ([#12003](https://github.com/angular/angular/issues/12003)) ([b2cf379](https://github.com/angular/angular/commit/b2cf379)), closes [#12002](https://github.com/angular/angular/issues/12002)
* **platform-browser:** provide the ability to register global hammer.js events ([768cddb](https://github.com/angular/angular/commit/768cddb)), closes [#12797](https://github.com/angular/angular/issues/12797)
* **tsc-wrapped:** harden collector against invalid asts ([#12793](https://github.com/angular/angular/issues/12793)) ([69f87ca](https://github.com/angular/angular/commit/69f87ca))



<a name="2.2.0-rc.0"></a>
# [2.2.0-rc.0](https://github.com/angular/angular/compare/2.2.0-beta.1...2.2.0-rc.0) (2016-11-02)


### Bug Fixes

* **compiler:** dedupe NgModule declarations, … ([a178bc6](https://github.com/angular/angular/commit/a178bc6))
* **compiler:** don’t double bind functions ([e391cac](https://github.com/angular/angular/commit/e391cac))
* **compiler:** Don’t throw on empty property bindings ([642c1db](https://github.com/angular/angular/commit/642c1db)), closes [#12583](https://github.com/angular/angular/issues/12583)
* **compiler:** support multiple components in a view container ([6fda972](https://github.com/angular/angular/commit/6fda972))
* **core:** improve error when multiple components match the same element ([e9fd864](https://github.com/angular/angular/commit/e9fd864)), closes [#7067](https://github.com/angular/angular/issues/7067)
* **router:** call data observers when the path changes ([1de04b2](https://github.com/angular/angular/commit/1de04b2))
* **router:** CanDeactivate receives a wrong component ([830a780](https://github.com/angular/angular/commit/830a780)), closes [#12592](https://github.com/angular/angular/issues/12592)
* **router:** rerun resolvers when url changes ([fe47e6b](https://github.com/angular/angular/commit/fe47e6b)), closes [#12603](https://github.com/angular/angular/issues/12603)
* **router:** reset URL to the stable state when a navigation gets canceled ([d509ee0](https://github.com/angular/angular/commit/d509ee0)), closes [#10321](https://github.com/angular/angular/issues/10321)
* **router:** routerLink should not prevent default on non-link elements ([8e221b8](https://github.com/angular/angular/commit/8e221b8))
* **router:** run navigations serially ([091c390](https://github.com/angular/angular/commit/091c390)), closes [#11754](https://github.com/angular/angular/issues/11754)
* **upgrade:** silent bootstrap failures ([fa93fd6](https://github.com/angular/angular/commit/fa93fd6)), closes [#12062](https://github.com/angular/angular/issues/12062)


### Features

* **core:** add the find method to QueryList ([7c16ef9](https://github.com/angular/angular/commit/7c16ef9))



<a name="2.1.2"></a>
# [2.1.2](https://github.com/angular/angular/compare/2.1.1...2.1.2) (2016-10-27)

### Bug Fixes

* **compiler:** don't access view local variables nor pipes in host expressions ([#12396](https://github.com/angular/angular/issues/12396)) ([867494a](https://github.com/angular/angular/commit/867494a)), closes [#12004](https://github.com/angular/angular/issues/12004) [#12071](https://github.com/angular/angular/issues/12071)
* **compiler:** walk third party modules ([#12453](https://github.com/angular/angular/issues/12453)) ([a838aba](https://github.com/angular/angular/commit/a838aba)), closes [#11889](https://github.com/angular/angular/issues/11889) [#12428](https://github.com/angular/angular/issues/12428)
* **compiler:** remove double exports of template_ast ([7742ec0](https://github.com/angular/angular/commit/7742ec0))
* **compiler:** use Maps instead of objects in selector implementation ([d321b0e](https://github.com/angular/angular/commit/d321b0e))
* **compiler-cli:** fix types ([ef15364](https://github.com/angular/angular/commit/ef15364))
* **compiler-cli:** assert that all pipes and directives are declared by a module  ([7221632](https://github.com/angular/angular/commit/7221632))
* **http:** overwrite already set xsrf header ([b4265e0](https://github.com/angular/angular/commit/b4265e0))
* **router:** add a test to make sure canDeactivate guards are called for aux routes ([fc60fa7](https://github.com/angular/angular/commit/fc60fa7)), closes [#11345](https://github.com/angular/angular/issues/11345)
* **router:** canDeactivate guards are not triggered for componentless routes ([b741853](https://github.com/angular/angular/commit/b741853)), closes [#12375](https://github.com/angular/angular/issues/12375)
* **router:** change router not to deactivate aux routes when navigating from a componentless routes ([52a853e](https://github.com/angular/angular/commit/52a853e))
* **router:** disallow component routes with named outlets ([8f2fa0f](https://github.com/angular/angular/commit/8f2fa0f)), closes [#11208](https://github.com/angular/angular/issues/11208) [#11082](https://github.com/angular/angular/issues/11082)
* **router:** preserve resolve data ([6ccbfd4](https://github.com/angular/angular/commit/6ccbfd4)), closes [#12306](https://github.com/angular/angular/issues/12306)



<a name="2.2.0-beta.1"></a>
# [2.2.0-beta.1](https://github.com/angular/angular/compare/2.2.0-beta.0...2.2.0-beta.1) (2016-10-27)

### Code Refactoring

* **upgrade:** re-export the new static upgrade APIs on new entry ([a26dd28](https://github.com/angular/angular/commit/a26dd28))


### Features

* **router:** export routerLinkActive w/ isActive property ([c9f58cf](https://github.com/angular/angular/commit/c9f58cf))


### BREAKING CHANGES (only for beta version users)

* upgrade: Four newly added APIs in 2.2.0-beta:
downgradeComponent, downgradeInjectable, UpgradeComponent, and UpgradeModule are no longer exported by @angular/upgrade.
Import these from @angular/upgrade/static instead.


Note: The 2.2.0-beta.1 release also contains all the changes present in the 2.1.2 release.



# [2.1.1](https://github.com/angular/angular/compare/2.1.0...2.1.1) (2016-10-20)

### Bug Fixes

* **compiler:** generate aot code for animation trigger output events ([#12291](https://github.com/angular/angular/issues/12291)) ([6e5f8b5](https://github.com/angular/angular/commit/6e5f8b5)), closes [#11707](https://github.com/angular/angular/issues/11707)
* **compiler:** don't redeclare a var in the same scope ([#12386](https://github.com/angular/angular/issues/12386)) ([cca4a5c](https://github.com/angular/angular/commit/cca4a5c))
* **core:** fix decorator default values ([bd1dcb5](https://github.com/angular/angular/commit/bd1dcb5))
* **core:** fix property decorators ([3993279](https://github.com/angular/angular/commit/3993279)), closes [#12224](https://github.com/angular/angular/issues/12224)
* **http:** make normalizeMethodName optimizer-compatible. ([#12370](https://github.com/angular/angular/issues/12370)) ([8409b65](https://github.com/angular/angular/commit/8409b65))
* **router:** correctly export filter operator in es5 ([#12286](https://github.com/angular/angular/issues/12286)) ([27d7677](https://github.com/angular/angular/commit/27d7677))
* **router:** do not update primary route if only secondary outlet is given ([#11797](https://github.com/angular/angular/issues/11797)) ([da5fc69](https://github.com/angular/angular/commit/da5fc69))
* **router:** fix lazy loading triggered by redirects from wildcard routes ([5ae6915](https://github.com/angular/angular/commit/5ae6915)), closes [#12183](https://github.com/angular/angular/issues/12183)
* **router:** module loader should start compiling modules when stubbedModules are set ([#11742](https://github.com/angular/angular/issues/11742)) ([b44b6ef](https://github.com/angular/angular/commit/b44b6ef))


### Performance Improvements

* **common:** optimize NgSwitch default case ([fdf4309](https://github.com/angular/angular/commit/fdf4309))



<a name="2.2.0-beta.0"></a>
# [2.2.0-beta.0](https://github.com/angular/angular/compare/2.1.0...2.2.0-beta.0) (2016-10-20)

### Features

* **common:** support narrow forms for month and weekdays in DatePipe ([#12297](https://github.com/angular/angular/issues/12297)) ([f77ab6a](https://github.com/angular/angular/commit/f77ab6a)), closes [#12294](https://github.com/angular/angular/issues/12294)
* **forms:** add hasError and getError to AbstractControlDirective ([#11985](https://github.com/angular/angular/issues/11985)) ([592f40a](https://github.com/angular/angular/commit/592f40a)), closes [#7255](https://github.com/angular/angular/issues/7255)
* **forms:** add ng-pending CSS class during async validation ([#11243](https://github.com/angular/angular/issues/11243)) ([97bc971](https://github.com/angular/angular/commit/97bc971)), closes [#10336](https://github.com/angular/angular/issues/10336)
* **forms:** Added emitEvent to AbstractControl methods ([#11949](https://github.com/angular/angular/issues/11949)) ([b9fc090](https://github.com/angular/angular/commit/b9fc090))
* **forms:** make 'parent' a public property of 'AbstractControl' ([#11855](https://github.com/angular/angular/issues/11855)) ([445e592](https://github.com/angular/angular/commit/445e592))
* **forms:** Validator.pattern accepts a RegExp ([#12323](https://github.com/angular/angular/issues/12323)) ([bf60418](https://github.com/angular/angular/commit/bf60418))
* **upgrade:** add support for AoT compiled upgrade applications ([d6791ff](https://github.com/angular/angular/commit/d6791ff)), closes [#12239](https://github.com/angular/angular/issues/12239)
* **router:** add support for ng1/ng2 migration ([#12160](https://github.com/angular/angular/issues/12160)) ([8b9ab44](https://github.com/angular/angular/commit/8b9ab44))

Note: The 2.2.0-beta.0 release also contains all the changes present in the 2.1.1 release.



<a name="2.1.0"></a>
# [2.1.0 incremental-metamorphosis](https://github.com/angular/angular/compare/2.1.0-rc.0...2.1.0) (2016-10-12)


### Bug Fixes

* **compiler:** allow whitespace as `<ng-content>` content ([#12225](https://github.com/angular/angular/issues/12225)) ([df1718d](https://github.com/angular/angular/commit/df1718d))
* **compiler:** interpolation expressions report the correct offset ([#12125](https://github.com/angular/angular/issues/12125)) ([d641c36](https://github.com/angular/angular/commit/d641c36))
* **compiler:** properly shim `:host:before` and `:host(:before)` ([#12171](https://github.com/angular/angular/issues/12171)) ([aa92512](https://github.com/angular/angular/commit/aa92512)), closes [#12165](https://github.com/angular/angular/issues/12165)
* **compiler:** validate `@HostBinding` name ([#12139](https://github.com/angular/angular/issues/12139)) ([13ecc14](https://github.com/angular/angular/commit/13ecc14))
* **compiler-cli:** don't clone static symbols when simplifying annotation metadata ([#12158](https://github.com/angular/angular/issues/12158)) ([8c477b2](https://github.com/angular/angular/commit/8c477b2))
* **compiler-cli:** remove peerDependency on [@angular](https://github.com/angular)/platform-server ([#12122](https://github.com/angular/angular/issues/12122)) ([71b7654](https://github.com/angular/angular/commit/71b7654))
* **compiler-cli:** remove unused parse5 dependency from package.json ([eaaec69](https://github.com/angular/angular/commit/eaaec69))
* **forms:** allow optional fields with pattern and minlength validators ([#12147](https://github.com/angular/angular/issues/12147)) ([d22eeb7](https://github.com/angular/angular/commit/d22eeb7))
* **forms:** properly validate blank strings with minlength ([#12091](https://github.com/angular/angular/issues/12091)) ([f50c1da](https://github.com/angular/angular/commit/f50c1da))
* **http:** fix Headers initialization from Headers and Object ([#12106](https://github.com/angular/angular/issues/12106)) ([f4566f8](https://github.com/angular/angular/commit/f4566f8))
* **http:** Headers.append should append to the list ([a67c067](https://github.com/angular/angular/commit/a67c067))
* **platform-browser-dynamic:** mark platformBrowserDynamic as stable API ([#12154](https://github.com/angular/angular/issues/12154)) ([bcef5ef](https://github.com/angular/angular/commit/bcef5ef))
* **router:** improve error message ([#12102](https://github.com/angular/angular/issues/12102)) ([e06303a](https://github.com/angular/angular/commit/e06303a))
* **router:** parent resolve should complete before merging resolved data ([1681e4f](https://github.com/angular/angular/commit/1681e4f)), closes [#12032](https://github.com/angular/angular/issues/12032)
* **router:** wildcards routes should support lazy loading ([40b92dd](https://github.com/angular/angular/commit/40b92dd)), closes [#12024](https://github.com/angular/angular/issues/12024)
* **upgrade:** allow compilerOptions in bootstrap ([#10575](https://github.com/angular/angular/issues/10575)) ([5effc33](https://github.com/angular/angular/commit/5effc33))



<a name="2.1.0-rc.0"></a>
# [2.1.0-rc.0](https://github.com/angular/angular/compare/2.1.0-beta.0...2.1.0-rc.0) (2016-10-05)

### Features

* **animations:** provide aliases for `:enter` and `:leave` transitions ([#11991](https://github.com/angular/angular/issues/11991)) ([e884f48](https://github.com/angular/angular/commit/e884f48))

Note: 2.1.0-rc.0 release also contains all the changes present in the 2.0.2 release.



<a name="2.1.0-beta.0"></a>
# [2.1.0-beta.0](https://github.com/angular/angular/compare/2.0.0...2.1.0-beta.0) (2016-09-23)

### Features

* **router:** add router preloader to optimistically preload routes ([5a84982](https://github.com/angular/angular/commit/5a84982))


### Bug Fixes
* **router:** update the router not to reset router state when updating root component ([#11799](https://github.com/angular/angular/issues/11799)) ([31dce72](https://github.com/angular/angular/commit/31dce72))

Note: 2.1.0-beta.0 release also contains all the changes present in the 2.0.1 release.



<a name="2.0.2"></a>
## [2.0.2](https://github.com/angular/angular/compare/2.0.1...2.0.2) (2016-10-05)


### Bug Fixes

* **common:** correctly removes styles on IE ([#11953](https://github.com/angular/angular/pull/11953)), closes [#7916](https://github.com/angular/angular/issues/7916)
* **compiler:** do not embed templateUrl in view factories in non-debug mode. ([#11818](https://github.com/angular/angular/issues/11818)) ([51e1994](https://github.com/angular/angular/commit/51e1994)), closes [#11117](https://github.com/angular/angular/issues/11117)
* **compiler:** move detection of unsafe properties for binding to ElementSchemaRegistry ([#11378](https://github.com/angular/angular/issues/11378)) ([5911c3b](https://github.com/angular/angular/commit/5911c3b))
* **compiler:** fix `:host(tag)` and `:host-context(tag)` ([a6bb84e0](https://github.com/angular/angular/commit/a6bb84e02b7579f8d957ef6ba5b10d83482ed756)), closes [#11972](https://github.com/angular/angular/issues/11972)
* **compiler:** fix attribute selectors in :host and :host-context ([#12056](https://github.com/angular/angular/issues/12056)) ([6f7ed32](https://github.com/angular/angular/commit/6f7ed32)), closes [#11917](https://github.com/angular/angular/issues/11917)
* **compiler:** support `@page` and `@document` CSS rules ([#11878](https://github.com/angular/angular/issues/11878)) ([c99ef49](https://github.com/angular/angular/commit/c99ef49)), closes [#11860](https://github.com/angular/angular/issues/11860)
* **compiler:** support `[attr="value with space"]` ([bd012ef](https://github.com/angular/angular/commit/bd012ef)), closes [#6249](https://github.com/angular/angular/issues/6249)
* **compiler:** support quoted attribute values ([7395400](https://github.com/angular/angular/commit/7395400)), closes [#6085](https://github.com/angular/angular/issues/6085)
* **compiler:** fix `<x>` ctype names ([7578d85](https://github.com/angular/angular/commit/7578d85)), closes [#12000](https://github.com/angular/angular/issues/12000)
* **compiler-cli:** allow ReflectorHost passed as argument to CodeGenerator#create ([#11951](https://github.com/angular/angular/issues/11951)) ([826c98e](https://github.com/angular/angular/commit/826c98e))
* **forms:** properly validate empty strings with patterns ([#11450](https://github.com/angular/angular/issues/11450)) ([e00de0c](https://github.com/angular/angular/commit/e00de0c))
* **http:** preserve case of the first init, `set()` or `append()` ([#12023](https://github.com/angular/angular/issues/12023)) ([adb17fe](https://github.com/angular/angular/commit/adb17fe)), closes [#11624](https://github.com/angular/angular/issues/11624)
* **http:** remove url params if provided value is null or undefined ([#11990](https://github.com/angular/angular/issues/11990)) ([9cc0a4e](https://github.com/angular/angular/commit/9cc0a4e))
* **router:** do not reset the router state when updating the component ([#11867](https://github.com/angular/angular/issues/11867)) ([cf750e1](https://github.com/angular/angular/commit/cf750e1))
* **upgrade:** bind optional properties when upgrading from ng1 ([#11411](https://github.com/angular/angular/issues/11411)) ([0851238](https://github.com/angular/angular/commit/0851238)), closes [#10181](https://github.com/angular/angular/issues/10181)


<a name="2.0.1"></a>
## [2.0.1](https://github.com/angular/angular/compare/2.0.0...2.0.1) (2016-09-23)


### Bug Fixes

* **common:** fix ngOnChanges signature of NgTemplateOutlet directive ([14ee759](https://github.com/angular/angular/commit/14ee759))
* **compiler:** `[attribute~=value]` selector ([#11696](https://github.com/angular/angular/issues/11696)) ([734b8b8](https://github.com/angular/angular/commit/734b8b8)), closes [#9644](https://github.com/angular/angular/issues/9644)
* **compiler:** safe property access expressions work in event bindings ([#11724](https://github.com/angular/angular/issues/11724)) ([a95d652](https://github.com/angular/angular/commit/a95d652))
* **compiler:** throw when Component.moduleId is not a string ([bd4045b](https://github.com/angular/angular/commit/bd4045b)), closes [#11590](https://github.com/angular/angular/issues/11590)
* **compiler:** do not provide I18N values when they're not specified ([03aedbe](https://github.com/angular/angular/commit/03aedbe)), closes [#11643](https://github.com/angular/angular/issues/11643)
* **core:** ContentChild descendants should be queried by default ([0dc15eb](https://github.com/angular/angular/commit/0dc15eb)), closes [#11645](https://github.com/angular/angular/issues/11645)
* **forms:** disable all radios with disable() ([2860418](https://github.com/angular/angular/commit/2860418))
* **forms:** make setDisabledState optional for reactive form directives ([#11731](https://github.com/angular/angular/issues/11731)) ([51d73d3](https://github.com/angular/angular/commit/51d73d3)), closes [#11719](https://github.com/angular/angular/issues/11719)
* **forms:** support unbound disabled in ngModel ([#11736](https://github.com/angular/angular/issues/11736)) ([39e251e](https://github.com/angular/angular/commit/39e251e))
* **upgrade:** allow attribute selectors for components in ng2 which are not part of upgrade ([#11808](https://github.com/angular/angular/issues/11808)) ([b81e2e7](https://github.com/angular/angular/commit/b81e2e7)), closes [#11280](https://github.com/angular/angular/issues/11280)



<a name="2.0.0"></a>
# [2.0.0 proprioception-reinforcement](https://github.com/angular/angular/compare/2.0.0-rc.7...2.0.0) (2016-09-14)