⬆ Bump ty from 0.0.27 to 0.0.28

[dependabot]

Bumps ty from 0.0.27 to 0.0.28.

Release notes

Sourced from ty's releases.

0.0.28

Release Notes

Released on 2026-04-02.

Bug fixes

• Mark loop header assignments as used to avoid false positives in "unused variable" diagnostics (#24336)

LSP server

• Show constructor signature of classes when hovering over them (#24257)

Core type checking

• Avoid emitting cascading diagnostics when parsing invalid type expressions (#24326)
• Handle most "deep" mutual TypeVar constraints (#24079)
• Improve consistency and quality of diagnostics relating to invalid type forms (#24325)
• Improve robustness of various type-qualifier-related checks (#24251)
• Infer the extra_items keyword argument to class-based TypedDicts as an annotation expression (#24362)
• Use bidirectional inference to fix false positives on operations such as x: list[int | None] = [None] * 2 (#24197)
• Sync vendored typeshed stubs (#24340). Typeshed diff
• Tighten up validation of subscripts and attributes in type expressions (#24329)
• Use infer_type_expression for parsing parameter annotations and return-type annotations (#24353)
• Use infer_type_expression for validating PEP-613 type aliases (#24370)
• Validate TypedDict fields when subclassing (#24338)
• Validate type qualifiers in functional TypedDict fields and the extra_items keyword to functional TypedDicts (#24360)
• Improve diagnostics for invalid functional TypedDicts (#24345)

Contributors

• @​zsol
• @​dcreager
• @​charliermarsh
• @​oconnor663
• @​AlexWaygood
• @​Glyphack

Install ty 0.0.28

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.28/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.28/ty-installer.ps1 | iex"
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Changelog

Sourced from ty's changelog.

0.0.28

Released on 2026-04-02.

Bug fixes

• Mark loop header assignments as used to avoid false positives in "unused variable" diagnostics (#24336)

LSP server

• Show constructor signature of classes when hovering over them (#24257)

Core type checking

• Avoid emitting cascading diagnostics when parsing invalid type expressions (#24326)
• Handle most "deep" mutual TypeVar constraints (#24079)
• Improve consistency and quality of diagnostics relating to invalid type forms (#24325)
• Improve robustness of various type-qualifier-related checks (#24251)
• Infer the extra_items keyword argument to class-based TypedDicts as an annotation expression (#24362)
• Use bidirectional inference to fix false positives on operations such as x: list[int | None] = [None] * 2 (#24197)
• Sync vendored typeshed stubs (#24340). Typeshed diff
• Tighten up validation of subscripts and attributes in type expressions (#24329)
• Use infer_type_expression for parsing parameter annotations and return-type annotations (#24353)
• Use infer_type_expression for validating PEP-613 type aliases (#24370)
• Validate TypedDict fields when subclassing (#24338)
• Validate type qualifiers in functional TypedDict fields and the extra_items keyword to functional TypedDicts (#24360)
• Improve diagnostics for invalid functional TypedDicts (#24345)

Contributors

• @​zsol
• @​dcreager
• @​charliermarsh
• @​oconnor663
• @​AlexWaygood
• @​Glyphack

Commits

• 927aad2 Bump version to 0.0.28 (#3206)
• 29d288e Publish installers to /installers/ty/latest on the mirror (#3202)
• See full diff in compare view