Sourced from ty's releases.

0.0.24

Release Notes

Released on 2026-03-19.

Bug fixes

• Ensure TypedDict subscripts for unknown keys return Unknown (#23926)
• Fix overflow with recursive TypeIs (#23784)
• Fix variance of frozen dataclass-transform models (#23931)

LSP server

• Improve semantic token classification for attribute access on union types (#23841)

Core type checking

• Improve performance and correctness by avoiding inferring intersection types for call arguments as a result of bidirectional inference (#23933)
• Narrow keyword arguments when unpacking dictionary instances (#23436)
• Discover /usr/local/lib dist-packages on Debian/Ubuntu (#23797)
• Sync vendored typeshed stubs (#23963). Typeshed diff

Install ty 0.0.24

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.24/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.24/ty-installer.ps1 | iex"

Download ty 0.0.24

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
ty-i686-pc-windows-msvc.zip	x86 Windows	checksum
ty-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ty-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ty-i686-unknown-linux-gnu.tar.gz	x86 Linux	checksum
ty-powerpc64-unknown-linux-gnu.tar.gz	PPC64 Linux	checksum
ty-powerpc64le-unknown-linux-gnu.tar.gz	PPC64LE Linux	checksum
ty-s390x-unknown-linux-gnu.tar.gz	S390x Linux	checksum

... (truncated)

Sourced from ty's changelog.

0.0.24

Released on 2026-03-19.

Bug fixes

• Ensure TypedDict subscripts for unknown keys return Unknown (#23926)
• Fix overflow with recursive TypeIs (#23784)
• Fix variance of frozen dataclass-transform models (#23931)

LSP server

• Improve semantic token classification for attribute access on union types (#23841)

Core type checking

• Improve performance and correctness by avoiding inferring intersection types for call arguments as a result of bidirectional inference (#23933)
• Narrow keyword arguments when unpacking dictionary instances (#23436)
• Discover /usr/local/lib dist-packages on Debian/Ubuntu (#23797)
• Sync vendored typeshed stubs (#23963). Typeshed diff

Performance

• Introduce fast path for protocol non-assignability (#23952)
• Improved generic-solver performance in cases involving overload sets (#23881)

Contributors

• @​Geo5
• @​ibraheemdev
• @​charliermarsh
• @​dcreager
• @​ollema
• @​sharkdp

• 8762330 Bump version to 0.0.24 (#3084)
• a6f24e1 Update prek dependencies (#3045)
• 95150e7 Typing FAQ: New entry explaining invariance (#3073)
• bc9e8a8 Remove the repository code of conduct in favor of the organization one (#3058)
• 3d12b2e Update astral-sh/setup-uv action to v7.6.0 (#3054)
• 64fe9c2 Update actions/attest-build-provenance action to v4 (#3046)
• 86d05eb Update docker/setup-buildx-action action to v4 (#3050)
• eb3f320 Update docker/metadata-action action to v6 (#3049)
• 7da93b8 Update docker/login-action action to v4 (#3048)
• fa4db72 Update docker/build-push-action action to v7 (#3047)
• Additional commits viewable in compare view

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