Bump ty from 0.0.33 to 0.0.42

[dependabot]

Bumps ty from 0.0.33 to 0.0.42.

Release notes

Sourced from ty's releases.

0.0.42

Release Notes

Released on 2026-06-01.

Bug fixes

• Fix narrowing of enum literal unions by member identity (#25520)
• Detect recursive expansion in constraint-set solving (#25442)

Core type checking

• Support tagged-union narrowing for nominal types (#24916)
• Extend Generator assignability workaround to Python 3.13+ (#25472)
• Sync vendored typeshed stubs (#25514)

Performance

• Avoid redundant work for empty collection context (#25527)
• Deduplicate retained use-def place states (#25450)
• Compact retained semantic maps (#25238)

Contributors

• @​aholyoke
• @​carljm
• @​charliermarsh
• @​sharkdp

Install ty 0.0.42

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.42/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.42/ty-installer.ps1 | iex"

Download ty 0.0.42

File	Platform	Checksum
ty-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ty-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ty-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum

... (truncated)

Changelog

Sourced from ty's changelog.

0.0.42

Released on 2026-06-01.

Bug fixes

• Fix narrowing of enum literal unions by member identity (#25520)
• Detect recursive expansion in constraint-set solving (#25442)

Core type checking

• Support tagged-union narrowing for nominal types (#24916)
• Extend Generator assignability workaround to Python 3.13+ (#25472)
• Sync vendored typeshed stubs (#25514)

Performance

• Avoid redundant work for empty collection context (#25527)
• Deduplicate retained use-def place states (#25450)
• Compact retained semantic maps (#25238)

Contributors

• @​aholyoke
• @​carljm
• @​charliermarsh
• @​sharkdp

0.0.41

Released on 2026-05-31.

Bug fixes

• Avoid panic for deferred dataclass field annotations (#25444)
• Avoid panic from cycle in function decorator inference (#25475)
• Ignore rejected assignments for synthesized bindings (#25340)
• Infer bool for not applied to dynamic values (#25445)
• Use diagnostic message as tie-breaker when sorting (#25424)

LSP server

• Add call hierarchy support (#25338)
• Add function parentheses completion (#25305)
• Display docs for matching parameter when hovering over the name of an argument passed by keyword (#25283)
• Document completeFunctionParentheses editor setting (#3513)

Diagnostics

• Introduce opt-in missing-override-decorator rule (#25111)

... (truncated)

Commits

• 7f8cb64 Bump version to 0.0.42 (#3615)
• 41bb0d2 Bump version to 0.0.41 (#3601)
• c690a49 Document completeFunctionParentheses editor setting (#3513)
• 85c5e32 Document that call hierarchy is now supported (#3582)
• e118dd0 docs: Add typeHierarchy support in LSP feature reference (#3382)
• aa20b16 minor changelog nits for the latest release (#3560)
• 7b95bc2 Bump version to 0.0.40 (#3554)
• 54c7498 Update prek dependencies (#3546)
• 0d8540a docs: set Eglot :language-id so ty works with python-base-mode (#3532)
• 8f1cee0 scripts/update_schemastore: add text=True to git revision check_output calls ...
• Additional commits viewable in compare view