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@github-actions github-actions released this 19 Jun 01:49
Immutable release. Only release title and notes can be modified.
0.0.51
b5ef61c
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Learn about vigilant mode.

Release Notes

Released on 2026-06-18.

Bug fixes

  • Fix bound TypeVar default cycle recovery (#26124)
  • Support Annotated[Any, ...] as a class base (#26133)

LSP server

  • Suggest keyword-only arguments between variadic parameters (#26134)

Core type checking

  • Avoid assuming classes with Any or Unknown bases are descriptors (#26120)
  • Infer simpler types in complex lambda cycles (#26137)
  • Preserve exact class objects during identity narrowing (#26117)

Diagnostics

  • Preserve unpacking diagnostics for nested assignment targets (#26121)

Performance

  • Compact indexed AST node storage (#25998)
  • Discard dead DNF branches in intersection building (#26144)

Documentation

  • Remove broken gradual guarantee link (#3806)

Contributors

Install ty 0.0.51

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.51/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.51/ty-installer.ps1 | iex"

Download ty 0.0.51

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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