Sourced from ty's releases.

0.0.35

Release Notes

Released on 2026-05-10.

Bug fixes

• Allow ParamSpec specialization through unioned generic classes (#24826)
• Fix cross-file find-references for keyword arguments (#25043)
• Fix comparison between negative and positive literal integers (#25023)
• Reject dataclass decorator parameters based on supported Python version (#25029)

LSP server

• Adjust start of block folding range to preserve visible header for character-precise LSP clients. (#24917)
• Emit folding ranges from the language server for multi-line block headers. (#24978)
• Skip global search for references if identifier is not externally visible (#25033)
• Speed-up find-references by using multithreading for cross-file searches (#25042)

CLI

• Include severity in JUnit diagnostics (#25080)

Core type checking

• Check non-generic overload implementations (#24936)
• Expand support for narrowing within walruses (#24968)
• Filter overloads based on return type for ParamSpec mapping (#24769)
• Improve support for recursive types (#24773)
• Include TypedDict type context when inferring mixed constructors (#25039)
• Include TypedDict type context when inferring string keys (#25037)
• Preserve NewType and TypeAliasType in implicit aliases (#25072)
• Provide type cntext for generator expression yields (#25069)
• Provide type context for boolean operands (#25070)
• Selectively promote a union of homogeneous fixed-length tuples to a single variadic tuple (#24705)
• Support narrowing on __class__ checks (#24997)
• Use more precise exception types when catching a union (#25076)

Diagnostics

• Include error context for overload consistency diagnostics (#24950)

Performance

• Cache results in desperate module resolution (#24977)
• Lazily initialize builder when transforming a union type (#24929)
• Project reachability constraints before narrowing (#24982)
• Skip parameter accumulation for object variadics (#24976)

Contributors

... (truncated)

Sourced from ty's changelog.

0.0.35

Released on 2026-05-10.

Bug fixes

• Allow ParamSpec specialization through unioned generic classes (#24826)
• Fix cross-file find-references for keyword arguments (#25043)
• Fix comparison between negative and positive literal integers (#25023)
• Reject dataclass decorator parameters based on supported Python version (#25029)

LSP server

• Adjust start of block folding range to preserve visible header for character-precise LSP clients. (#24917)
• Emit folding ranges from the language server for multi-line block headers. (#24978)
• Skip global search for references if identifier is not externally visible (#25033)
• Speed-up find-references by using multithreading for cross-file searches (#25042)

CLI

• Include severity in JUnit diagnostics (#25080)

Core type checking

• Check non-generic overload implementations (#24936)
• Expand support for narrowing within walruses (#24968)
• Filter overloads based on return type for ParamSpec mapping (#24769)
• Improve support for recursive types (#24773)
• Include TypedDict type context when inferring mixed constructors (#25039)
• Include TypedDict type context when inferring string keys (#25037)
• Preserve NewType and TypeAliasType in implicit aliases (#25072)
• Provide type cntext for generator expression yields (#25069)
• Provide type context for boolean operands (#25070)
• Selectively promote a union of homogeneous fixed-length tuples to a single variadic tuple (#24705)
• Support narrowing on __class__ checks (#24997)
• Use more precise exception types when catching a union (#25076)

Diagnostics

• Include error context for overload consistency diagnostics (#24950)

Performance

• Cache results in desperate module resolution (#24977)
• Lazily initialize builder when transforming a union type (#24929)
• Project reachability constraints before narrowing (#24982)
• Skip parameter accumulation for object variadics (#24976)

Contributors

... (truncated)

• bc12d1c Bump version to 0.0.35 (#3436)
• fb34d89 Build riscv64 manylinux binary (#3402)
• 05def00 Update maturin to v1.13.1 (#3417)
• 569c081 Update prek dependencies (#3416)
• 608f8ff Update renovate configuration (#3379)
• 518b61d Update uraimo/run-on-arch-action action to v3.1.0 (#3405)
• 5542959 Update pre-commit hook astral-sh/ruff-pre-commit to v0.15.12 (#3404)
• See full diff in compare view

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