Bump version to 0.0.20

Author: charliermarsh

CHANGELOG.md

@@ -1,5 +1,56 @@
 # Changelog
 
+## 0.0.20
+
+Released on 2026-03-02.
+
+### Bug fixes
+
+- Fix bug where ty would think that a `Callable` with a variadic positional parameter could be a subtype of a `Callable` with a positional-or-keyword parameter ([#23610](https://github.com/astral-sh/ruff/pull/23610))
+- Limit recursion depth when displaying self-referential function types ([#23647](https://github.com/astral-sh/ruff/pull/23647))
+
+### LSP server
+
+- Add support for the LSP protocol's "type hierarchy" feature ([#23566](https://github.com/astral-sh/ruff/pull/23566))
+
+### Other changes
+
+- Add more ParamSpec validation for `P.args` and `P.kwargs` ([#23640](https://github.com/astral-sh/ruff/pull/23640))
+- Ban nested `Required`/`NotRequired`, and ban them both outside of `TypedDict` fields ([#23627](https://github.com/astral-sh/ruff/pull/23627))
+- Bump cargo-dist to 0.31.0 ([#2920](https://github.com/astral-sh/ty/pull/2920))
+- Dataclass transform: neither frozen nor non-frozen ([#23366](https://github.com/astral-sh/ruff/pull/23366))
+- Detect inconsistent generic base class specializations ([#23615](https://github.com/astral-sh/ruff/pull/23615))
+- Detect invalid uses of `@final` on non-methods ([#23604](https://github.com/astral-sh/ruff/pull/23604))
+- Fix inference of `t.__mro__` if `t` is an instance of `type[Any]` ([#23632](https://github.com/astral-sh/ruff/pull/23632))
+- Fix overloaded callable assignability for unary Callable targets ([#23277](https://github.com/astral-sh/ruff/pull/23277))
+- Have `typing.Unpack[tuple[]]` behave more like `*tuple[]` ([#23651](https://github.com/astral-sh/ruff/pull/23651))
+- Publish releases to Astral mirror ([#2921](https://github.com/astral-sh/ty/pull/2921))
+- Recurse into tuples and nested tuples when applying special-cased validation of `isinstance()` and `issubclass()` ([#23607](https://github.com/astral-sh/ruff/pull/23607))
+- Reject ellipsis literals in odd places in type/annotation expressions ([#23611](https://github.com/astral-sh/ruff/pull/23611))
+- Reject functions with PEP-695 type parameters that shadow type parameters from enclosing scopes ([#23619](https://github.com/astral-sh/ruff/pull/23619))
+- Reject generic metaclasses parameterized by type variables ([#23628](https://github.com/astral-sh/ruff/pull/23628))
+- Sync vendored typeshed stubs ([#23642](https://github.com/astral-sh/ruff/pull/23642))
+- Update the Python module (notably `find_ty_bin`) for parity with uv ([#2852](https://github.com/astral-sh/ty/pull/2852))
+- Validate type variable defaults don't reference later type parameters or type parameters out of scope ([#23623](https://github.com/astral-sh/ruff/pull/23623))
+- disallow negative narrowing on SubclassOf types ([#23598](https://github.com/astral-sh/ruff/pull/23598))
+- fix binops with NewType of float and Unknown ([#23620](https://github.com/astral-sh/ruff/pull/23620))
+- hash-cons `UseDefMap` fields ([#23283](https://github.com/astral-sh/ruff/pull/23283))
+- make `StaticClassLiteral::explicit_bases` converge better in cycles ([#23601](https://github.com/astral-sh/ruff/pull/23601))
+
+### Contributors
+
+- [@Hugo-Polloli](https://github.com/Hugo-Polloli)
+- [@zanieb](https://github.com/zanieb)
+- [@sharkdp](https://github.com/sharkdp)
+- [@mtshiba](https://github.com/mtshiba)
+- [@carljm](https://github.com/carljm)
+- [@charliermarsh](https://github.com/charliermarsh)
+- [@sinon](https://github.com/sinon)
+- [@BurntSushi](https://github.com/BurntSushi)
+- [@oconnor663](https://github.com/oconnor663)
+- [@AlexWaygood](https://github.com/AlexWaygood)
+- [@zsol](https://github.com/zsol)
+
 ## 0.0.19
 
 Released on 2026-02-26.

dist-workspace.toml

@@ -1,7 +1,7 @@
 [workspace]
 members = ["cargo:./ruff"]
 packages = ["ty"]
-version = "0.0.19"
+version = "0.0.20"
 
 # Config for 'dist'
 [dist]

docs/installation.md

@@ -71,7 +71,7 @@ ty includes a standalone installer.
     Request a specific version by including it in the URL:
 
     ```console
-    $ curl -LsSf https://astral.sh/ty/0.0.19/install.sh | sh
+    $ curl -LsSf https://astral.sh/ty/0.0.20/install.sh | sh
     ```
 
 === "Windows"
@@ -87,7 +87,7 @@ ty includes a standalone installer.
     Request a specific version by including it in the URL:
 
     ```pwsh-session
-    PS> powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/ty/0.0.19/install.ps1 | iex"
+    PS> powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/ty/0.0.20/install.ps1 | iex"
     ```
 
 !!! tip
@@ -163,7 +163,7 @@ COPY --from=ghcr.io/astral-sh/ty:latest /ty /bin/
 The following tags are available:
 
 - `ghcr.io/astral-sh/ty:latest`
-- `ghcr.io/astral-sh/ty:{major}.{minor}.{patch}`, e.g., `ghcr.io/astral-sh/ty:0.0.19`
+- `ghcr.io/astral-sh/ty:{major}.{minor}.{patch}`, e.g., `ghcr.io/astral-sh/ty:0.0.20`
 - `ghcr.io/astral-sh/ty:{major}.{minor}`, e.g., `ghcr.io/astral-sh/ty:0.0` (the latest patch
     version)