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@github-actions github-actions released this 09 Sep 21:19
Immutable release. Only release title and notes can be modified.
0.0.80
7fd8e15
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Learn about vigilant mode.

Release Notes

Released on 2026-09-09.

Bug fixes

  • Fix --force-exclude for directories with an excluded ancestor (#28451)
  • Preserve metaclass candidates after conflicts (#28461)

LSP server

  • Give existing autofixes descriptive titles (#28456)
  • Prevent LSP hangs during inlay hint bursts (#28390)

Diagnostic improvements

  • Preserve redundant-condition diagnostics with unreachable operands (#28374)

Core type checking

  • Check captured receivers when calling wrapped classmethods (#28467)
  • Fix cached classmethods on generic classes (#28207)
  • Fix disjointness of type guards and boolean literals (#28363)
  • Infer tuple variance from the full tuple spec (#28446)
  • Infer tuple variance more precisely (#28426)
  • Preserve callable identity across specialized types (#28409)
  • Preserve callback type context through ParamSpec forwarding (#28439)
  • Preserve wrapped functions in precise functools.partial relations (#28460)
  • Respect descriptor protocol for __set__ itself (#28408)
  • Respect type-variable bounds in argument context (#28448)
  • Unwrap union alternatives in overload implementations (#28468)

Performance

  • Distribute len inference over unions (#28470)
  • Fast-path concrete literal intersections (#28348)

Memory usage improvements

  • Avoid excess capacity in multi-binding tables (#28412)
  • Share equivalent place tables within a file (#28319)
  • Share names in synthesized constructor parameters (#28398)

Contributors

Install ty 0.0.80

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.80/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.80/ty-installer.ps1 | iex"

Download ty 0.0.80

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-riscv64gc-unknown-linux-gnu.tar.gz RISCV Linux checksum
ty-s390x-unknown-linux-gnu.tar.gz S390x Linux checksum
ty-x86_64-unknown-linux-gnu.tar.gz x64 Linux checksum
ty-armv7-unknown-linux-gnueabihf.tar.gz ARMv7 Linux checksum
ty-aarch64-unknown-linux-musl.tar.gz ARM64 MUSL Linux checksum
ty-i686-unknown-linux-musl.tar.gz x86 MUSL Linux checksum
ty-x86_64-unknown-linux-musl.tar.gz x64 MUSL Linux checksum
ty-arm-unknown-linux-musleabihf.tar.gz ARMv6 MUSL Linux (Hardfloat) checksum
ty-armv7-unknown-linux-musleabihf.tar.gz ARMv7 MUSL Linux checksum

Verifying GitHub Artifact Attestations

The artifacts in this release have attestations generated with GitHub Artifact Attestations. These can be verified by using the GitHub CLI:

gh attestation verify <file-path of downloaded artifact> --repo astral-sh/ty

You can also download the attestation from GitHub and verify against that directly:

gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation>
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