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@github-actions github-actions released this 08 Jul 11:34
Immutable release. Only release title and notes can be modified.
0.0.57
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Release Notes

Released on 2026-07-07.

Bug fixes

  • Detect async generator expressions containing await (#26568)
  • Preserve exhaustive gradual match patterns (#26523)

LSP server

  • Fix selection range behavior for strings (#26532)
  • Recognize that dedent ends doctest block when parsing docstrings for signature help (#26552)
  • Render reStructuredText hyperlinks as Markdown in hover docstrings (#25907)
  • Update __slots__ string when renaming an attribute (#26438)

Documentation

  • Document PYTHONPATH support in module discovery (#3889)

Library support

  • Add support for extra arguments in Pydantic model constructors (#26520)
  • Detect Pydantic model configurations (#26573)
  • Distinguish lax and strict mode for Pydantic models (#26587)

Core type checking

  • Fix subtyping/assignability for @property protocol members (#25332)
  • Narrow isinstance against intersections containing invalid member (#26545)
  • Narrow match subjects through structural patterns (#25942)
  • Preserve generic functools.partial signatures (#24583)
  • Preserve generic variadic callback semantics (#26521)
  • Preserve invariant materialization on generic specializations (#26578)
  • Preserve literal enum member names (#26592)

Performance

  • Avoid exponential invariant constraint paths (#26538)
  • Batch parallel jobs when finding references (#26534)
  • Build module names directly in CompactString (#26546)
  • Elide default use-def state (#26398)
  • Reuse owned buffers for string literals (#26547)
  • Use ICF for macOS release builds (#3709)
  • Use cached class literal lookup for is_subclass_of (#26585)

Contributors

Install ty 0.0.57

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/ty/releases/download/0.0.57/ty-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/ty/releases/download/0.0.57/ty-installer.ps1 | iex"

Download ty 0.0.57

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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