Sourced from ty's releases.

0.0.34

Release Notes

Released on 2026-05-01.

Bug fixes

• Avoid panic in recursive protocol signature comparisons (#24665)
• Avoid panics for syntax error targets in invalid unpacking assignments (#24663)
• Fix unbounded type growth in nested-typevar substitutions (#24803)
• Prevent string annotation tokens from leaking across notebook cells (#24919)
• Support reference finding in stringified annotations (#24956)

LSP server

• Add hover support for PEP 695 type aliases (#24926)
• Offer string literal completion suggestions based on expected type (#24555)
• Support Go-to Definition, Go-To Declaration, and Find References for TypedDict and NamedTuple initializers (#24897)
• Support Annotated metadata in semantic tokens (#24890)

Core type checking

• Add support for functools.partial (#24582)
• Fix ParamSpec defaults and alias variance (#24479)
• Fix TypeIs assignability with gradual types (#24928)
• Infer dict(**TypedDict) in TypedDict context (#24709)
• Support infer_variance for legacy TypeVar (#24930)
• Support variance keywords in ParamSpec (#24927)
• Sync vendored typeshed stubs (#24952). Typeshed diff
• Unpack Union of TypedDict in various sites (#24958)

Diagnostics

• Add missing error context node for protocol to protocol assignability (#24905)
• Show a diagnostic for unsupported inferred Python version (#24581)

Performance

• Lazily build TypeVar accumulations (#24782)

Contributors

• @​sharkdp
• @​MichaReiser
• @​lerebear
• @​MatthewMckee4
• @​charliermarsh
• @​mtshiba
• @​Minibrams
• @​denyszhak

... (truncated)

Sourced from ty's changelog.

0.0.34

Released on 2026-05-01.

Bug fixes

• Avoid panic in recursive protocol signature comparisons (#24665)
• Avoid panics for syntax error targets in invalid unpacking assignments (#24663)
• Fix unbounded type growth in nested-typevar substitutions (#24803)
• Prevent string annotation tokens from leaking across notebook cells (#24919)
• Support reference finding in stringified annotations (#24956)

LSP server

• Add hover support for PEP 695 type aliases (#24926)
• Offer string literal completion suggestions based on expected type (#24555)
• Support Go-to Definition, Go-To Declaration, and Find References for TypedDict and NamedTuple initializers (#24897)
• Support Annotated metadata in semantic tokens (#24890)

Core type checking

• Add support for functools.partial (#24582)
• Fix ParamSpec defaults and alias variance (#24479)
• Fix TypeIs assignability with gradual types (#24928)
• Infer dict(**TypedDict) in TypedDict context (#24709)
• Support infer_variance for legacy TypeVar (#24930)
• Support variance keywords in ParamSpec (#24927)
• Sync vendored typeshed stubs (#24952). Typeshed diff
• Unpack Union of TypedDict in various sites (#24958)

Diagnostics

• Add missing error context node for protocol to protocol assignability (#24905)
• Show a diagnostic for unsupported inferred Python version (#24581)

Performance

• Lazily build TypeVar accumulations (#24782)

Contributors

• @​sharkdp
• @​MichaReiser
• @​lerebear
• @​MatthewMckee4
• @​charliermarsh
• @​mtshiba
• @​Minibrams
• @​denyszhak

... (truncated)

• d00448e Bump version to 0.0.34 (#3392)
• e9e4c90 docs: Reference correct issue in FAQ regarding strict mode (#3385)
• 1b70eae Release: move 'diagnostics' section further down (#3373)
• d439e37 CHANGELOG: Rename to 'Notable changes' (#3372)
• c512d84 Bump version to 0.0.33 (#3368)
• 4cd7b33 Upgrade Depot runners from macOS 14 to 15 (#3363)
• c78b832 Update rui314/setup-mold digest to 9c9c13b (#3342)
• dea3381 Update actions/cache action to v5.0.5 (#3343)
• d451af4 update typing-features and faqs (#3335)
• 052d70b Update prek dependencies (#3344)
• Additional commits viewable in compare view

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