Release ink! 3.0.0-rc7 (#1043)

* Bump `3.0.0-rc6` ➔ `3.0.0-rc7`

* Update release notes

* Update release notes

* Remove outdated changelog note

Author: Michael Müller

RELEASES.md

@@ -1,54 +1,74 @@
-# Version 3.0-rc7 (UNRELEASED)
+# Version 3.0-rc7
 
 This is the 7th release candidate for ink! 3.0.
 
+Since our last release candidate we implemented a number of contract size improvements.
+With those improvements the size of our `erc20` example has reduced significantly:
+
+|          |             | Release Build with `cargo-contract` |
+|:---------|:------------|:------------------------------------|
+| `erc20`  | `3.0.0-rc6` | 29.3 K                              |
+| `erc20`  | `3.0.0-rc7` | 10.4 K                              |
+
+The savings apply partly to our other examples; for `erc20` they are most
+significant since it has been migrated to use a new [`Mapping`](https://paritytech.github.io/ink/ink_storage/lazy/struct.Mapping.html)
+data structure, which we introduce with this release candidate.
+The other examples will be migrated to this new data structure as a next step.
+
 ## Removed
 - Removed the state rent API ‒ [#1036](https://github.com/paritytech/ink/pull/1036).
 
 ## Added
-- The ink! codegen now heavily relies on static type information based on traits defined in `ink_lang`.
+- Added support for wildcard selectors ‒ [#1020](https://github.com/paritytech/ink/pull/1020).
+    - This enables writing upgradable smart contracts using the proxy/forward pattern.
+      We added a new example to illustrate this ‒ the [proxy](https://github.com/paritytech/ink/tree/master/examples/proxy) example.
+    - Annotating a wildcard selector in traits is not supported.
+- The ink! codegen now heavily relies on static type information based on traits defined in `ink_lang` ‒ [#665](https://github.com/paritytech/ink/pull/665).
     - Some of those traits and their carried information can be used for static reflection of ink!
       smart contracts. Those types and traits reside in the new `ink_lang::reflect` module and is
       publicly usable by ink! smart contract authors.
-- Added basic support for wildcard selectors ‒ [#1020](https://github.com/paritytech/ink/pull/1020).
-  - This enables writing upgradable smart contracts using the proxy pattern.
-    We added a new example illustrating this ‒ the [proxy](https://github.com/paritytech/ink/tree/master/examples/proxy) example.
-  - Annotating a wildcard selector in traits is not supported.
 
 ## Changed
 - Upgraded to the `seal_call` v1 API ‒ [#960](https://github.com/paritytech/ink/pull/960).
   - This API now enables control over the behavior of cross-contract calls, e.g. to forward/clone input,
     enable tail calls and control reentrancy.
     The crate documentation contains more details on the [`CallFlags`](https://paritytech.github.io/ink/ink_env/struct.CallFlags.html).
   - **Note:** The default behavior of cross-contract calls now disallows reentering the calling contract.
-- ink! contract definitions via `#[ink::contract]`:
-    - ink! smart contracts now generate two contract types. Given `MyContract`:
+- ink! contract definitions via `#[ink::contract]` ‒ [#665](https://github.com/paritytech/ink/pull/665).<br/>
+  For ink! smart contracts we now generate two contract types. Given `MyContract`:
     - `MyContract` will still be the storage struct.
       However, it can now additionally be used as static dependency in other smart contracts.
       Static dependencies can be envisioned as being directly embedded into a smart contract.
     - `MyContractRef` is pretty much the same of what we had gotten with the old `ink-as-dependency`.
       It is a typed thin-wrapper around an `AccountId` that is mirroring the ink! smart contract's API
       and implemented traits.
-- ink! trait definitions via `#[ink::trait_definition]`:
+- ink! trait definitions via `#[ink::trait_definition]` ‒ [#665](https://github.com/paritytech/ink/pull/665).
     - ink! trait definitions no longer can define trait constructors.
     - ink! trait implementations now inherit `selector` and `payable` properties for trait messages.
         - Now explicitly setting `selector` or `payable` property for an implemented ink! trait method
           will only act as a guard that the set property is in fact the same as defined by the ink!
           trait definition.
-- Improved some ink! specific compile errors:
-    - For example, when using ink! messages and constructors that have inputs or
-      outputs that cannot be encoded or decoded using the SCALE codec.
-- Simplified selector computation for ink! trait methods.
+- Improved some ink! specific compile errors ‒ [#665](https://github.com/paritytech/ink/pull/665).
+    - For example, when using ink! messages and constructors which have inputs (or
+      outputs) that cannot be encoded (or decoded) using the SCALE codec.
+- Simplified selector computation for ink! trait methods ‒ [#665](https://github.com/paritytech/ink/pull/665).
     - Now selectors are encoded as `blake2b({namespace}::{trait_identifier}::{message_identifier})[0..4]`.
       If no `namespace` is set for the ink! trait definition then the formula is
       `blake2b({trait_identifier}::{message_identifier})[0..4]`.
       Where `trait_identifier` and `message_identifier` both refer to the identifiers of the ink! trait
       definition and ink! trait message respectively.
+- We switched to Rust edition 2021 ‒ [#977](https://github.com/paritytech/ink/pull/977).
+- Update chain extension example to show argument passing ‒ [#1029](https://github.com/paritytech/ink/pull/1029).
 
 ## Fixed
-- Contracts that are compiled as root (the default) now properly revert the transaction if a message
-  returned `Result::Err`.
-    - This does not apply to ink! smart contracts that are used as dependencies. Therefore it is still possible to match against a result return type for a called dependency.
+- Contracts now revert the transaction if an ink! message returns `Result::Err` ‒ [#975](https://github.com/paritytech/ink/pull/975), [#998](https://github.com/paritytech/ink/pull/998).
+    - It is still possible to match against a `Result` return type for a called dependency contract
+      ‒ i.e. a sub-contract specified in the contract's `Cargo.toml`.
+- We implemented a number of Wasm contract size improvements:
+    - Simple Mapping Storage Primitive ‒ [#946](https://github.com/paritytech/ink/pull/946).
+    - Remove `always` from `inline` to allow compiler decide that to do ‒ [#1012](https://github.com/paritytech/ink/pull/1012) (thanks [@xgreenx](https://github.com/xgreenx)).
+    - Add a way to allocate a storage facility using spread (and packed) layouts ‒ [#978](https://github.com/paritytech/ink/pull/978).
+    - Extract non-generic part of `push_topic` to reduce code size ‒ [#1026](https://github.com/paritytech/ink/pull/1026).
 
 # Version 3.0-rc6
 

crates/allocator/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_allocator"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 

crates/engine/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_engine"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Michael Müller <[email protected]>"]
 edition = "2021"
 

crates/env/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_env"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 
@@ -15,10 +15,10 @@ categories = ["no-std", "embedded"]
 include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
 
 [dependencies]
-ink_metadata = { version = "3.0.0-rc6", path = "../metadata/", default-features = false, features = ["derive"], optional = true }
-ink_allocator = { version = "3.0.0-rc6", path = "../allocator/", default-features = false }
-ink_primitives = { version = "3.0.0-rc6", path = "../primitives/", default-features = false }
-ink_prelude = { version = "3.0.0-rc6", path = "../prelude/", default-features = false }
+ink_metadata = { version = "3.0.0-rc7", path = "../metadata/", default-features = false, features = ["derive"], optional = true }
+ink_allocator = { version = "3.0.0-rc7", path = "../allocator/", default-features = false }
+ink_primitives = { version = "3.0.0-rc7", path = "../primitives/", default-features = false }
+ink_prelude = { version = "3.0.0-rc7", path = "../prelude/", default-features = false }
 
 scale = { package = "parity-scale-codec", version = "2.3", default-features = false, features = ["derive", "full"] }
 derive_more = { version = "0.99", default-features = false, features = ["from", "display"] }
@@ -32,7 +32,7 @@ static_assertions = "1.1"
 libsecp256k1 = { version = "0.7.0", default-features = false }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-ink_engine = { version = "3.0.0-rc6", path = "../engine/", default-features = false, optional = true }
+ink_engine = { version = "3.0.0-rc7", path = "../engine/", default-features = false, optional = true }
 
 # Hashes for the off-chain environment.
 sha2 = { version = "0.9", optional = true }

crates/eth_compatibility/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_eth_compatibility"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>"]
 edition = "2021"
 
@@ -15,7 +15,7 @@ categories = ["no-std", "embedded"]
 include = ["Cargo.toml", "src/**/*.rs", "/README.md", "/LICENSE"]
 
 [dependencies]
-ink_env = { version = "3.0.0-rc6", path = "../env", default-features = false }
+ink_env = { version = "3.0.0-rc7", path = "../env", default-features = false }
 libsecp256k1 = { version = "0.7.0", default-features = false }
 
 [features]

crates/lang/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_lang"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 
@@ -15,20 +15,20 @@ categories = ["no-std", "embedded"]
 include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
 
 [dependencies]
-ink_env = { version = "3.0.0-rc6", path = "../env", default-features = false }
-ink_storage = { version = "3.0.0-rc6", path = "../storage", default-features = false }
-ink_primitives = { version = "3.0.0-rc6", path = "../primitives", default-features = false }
-ink_metadata = { version = "3.0.0-rc6", path = "../metadata", default-features = false, optional = true }
-ink_prelude = { version = "3.0.0-rc6", path = "../prelude", default-features = false }
-ink_eth_compatibility = { version = "3.0.0-rc6", path = "../eth_compatibility", default-features = false }
-ink_lang_macro = { version = "3.0.0-rc6", path = "macro", default-features = false }
+ink_env = { version = "3.0.0-rc7", path = "../env", default-features = false }
+ink_storage = { version = "3.0.0-rc7", path = "../storage", default-features = false }
+ink_primitives = { version = "3.0.0-rc7", path = "../primitives", default-features = false }
+ink_metadata = { version = "3.0.0-rc7", path = "../metadata", default-features = false, optional = true }
+ink_prelude = { version = "3.0.0-rc7", path = "../prelude", default-features = false }
+ink_eth_compatibility = { version = "3.0.0-rc7", path = "../eth_compatibility", default-features = false }
+ink_lang_macro = { version = "3.0.0-rc7", path = "macro", default-features = false }
 
 scale = { package = "parity-scale-codec", version = "2.3", default-features = false, features = ["derive", "full"] }
 derive_more = { version = "0.99", default-features = false, features = ["from"] }
 
 [dev-dependencies]
-ink_lang_ir = { version = "3.0.0-rc6", path = "ir" }
-ink_metadata = { version = "3.0.0-rc6", default-features = false, path = "../metadata" }
+ink_lang_ir = { version = "3.0.0-rc7", path = "ir" }
+ink_metadata = { version = "3.0.0-rc7", default-features = false, path = "../metadata" }
 
 trybuild = { version = "1.0.52", features = ["diff"] }
 # Required for the doctest of `env_access::EnvAccess::instantiate_contract`

crates/lang/codegen/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_lang_codegen"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 
@@ -18,7 +18,7 @@ include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
 name = "ink_lang_codegen"
 
 [dependencies]
-ir = { version = "3.0.0-rc6", package = "ink_lang_ir", path = "../ir", default-features = false }
+ir = { version = "3.0.0-rc7", package = "ink_lang_ir", path = "../ir", default-features = false }
 quote = "1"
 syn = { version = "1.0", features = ["parsing", "full", "extra-traits"] }
 proc-macro2 = "1.0"

crates/lang/ir/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_lang_ir"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 

crates/lang/macro/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_lang_macro"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 
@@ -15,19 +15,19 @@ categories = ["no-std", "embedded"]
 include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
 
 [dependencies]
-ink_lang_ir = { version = "3.0.0-rc6", path = "../ir", default-features = false }
-ink_lang_codegen = { version = "3.0.0-rc6", path = "../codegen", default-features = false }
-ink_primitives = { version = "3.0.0-rc6", path = "../../primitives/", default-features = false }
+ink_lang_ir = { version = "3.0.0-rc7", path = "../ir", default-features = false }
+ink_lang_codegen = { version = "3.0.0-rc7", path = "../codegen", default-features = false }
+ink_primitives = { version = "3.0.0-rc7", path = "../../primitives/", default-features = false }
 
 scale = { package = "parity-scale-codec", version = "2.3", default-features = false, features = ["derive"] }
 syn = "1"
 proc-macro2 = "1"
 
 [dev-dependencies]
-ink_metadata = { version = "3.0.0-rc6", path = "../../metadata/" }
-ink_env = { version = "3.0.0-rc6", path = "../../env/" }
-ink_storage = { version = "3.0.0-rc6", path = "../../storage/" }
-ink_lang = { version = "3.0.0-rc6", path = ".." }
+ink_metadata = { version = "3.0.0-rc7", path = "../../metadata/" }
+ink_env = { version = "3.0.0-rc7", path = "../../env/" }
+ink_storage = { version = "3.0.0-rc7", path = "../../storage/" }
+ink_lang = { version = "3.0.0-rc7", path = ".." }
 scale-info = { version = "1.0", default-features = false, features = ["derive"] }
 
 [lib]

crates/metadata/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ink_metadata"
-version = "3.0.0-rc6"
+version = "3.0.0-rc7"
 authors = ["Parity Technologies <[email protected]>", "Robin Freyler <[email protected]>"]
 edition = "2021"
 
@@ -15,8 +15,8 @@ categories = ["no-std", "embedded"]
 include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE"]
 
 [dependencies]
-ink_prelude = { version = "3.0.0-rc6", path = "../prelude/", default-features = false }
-ink_primitives = { version = "3.0.0-rc6", path = "../primitives/", default-features = false }
+ink_prelude = { version = "3.0.0-rc7", path = "../prelude/", default-features = false }
+ink_primitives = { version = "3.0.0-rc7", path = "../primitives/", default-features = false }
 
 serde = { version = "1.0", default-features = false, features = ["derive", "alloc"] }
 impl-serde = "0.3.1"