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0.13.1 0.13.2

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astral-sh/uvOct 14, 2026 → Oct 19, 20266 days between releases

What's New

Adds PyPy support, improves resolver performance, and expands workspace metadata reporting.

New Features

  • Add PyPy 3.11.17 and 3.12.15
  • Preview: Fetch and parse PEP 825 index-level variant metadata
  • Support PEP 508 direct URLs (Mercurial, extensionless) in uv-build validation

Improvements

  • Report all installed packages in `uv workspace metadata`
  • Include supported environment restrictions when exporting `pylock.toml`
  • Retry dropped GET and HEAD requests when fetching package data
  • Reduce resolver memory use for large dependency graphs
  • Print valid ksh activation instructions and support OpenBSD-derived ksh

Bug Fixes

  • Preserve encoding declarations in wheel data scripts that require shell launchers
  • Show causes and hints when `uv python find --script` cannot discover an interpreter

Upgrade Notes

The `uv workspace metadata` command now reports all installed packages, not just those in the resolution. The `pylock.toml` export now includes supported environment restrictions.

The Two Releases

0.13.1

0.13.1

Oct 14, 2026· 8 days ago

Focuses on stability and concurrency fixes, including better handling of concurrent commands and environment management. It adds support for Linux SPARC and CPython 3.16.0a1, while reducing the binary size of the tool.

Full release notes
0.13.2

0.13.2

Oct 19, 2026· 2 days ago

Introduces enhancements to workspace metadata reporting, credential handling, and error messages. It adds support for PyPy versions and PEP 825 index metadata, alongside significant performance improvements for dependency resolution.

Full release notes