v0.5.31

Enhancements

• Add uv sync --script (#​11361)
• Allow PEP 508 requirements in tool requests (#​11337)
• Allow source distributions to produce wheels with +local suffixes (#​11429)
• Bring parity to uvx and uv tool install requests (#​11345)
• Use a stable directory for local, remote, and stdin script virtual environments (#​11347, #​11364)
• Detect infinite recursion in uv run (#​11386)

Python

The managed Python distributions have been updated, including:

• CPython 3.14.0a5, which includes a new tail calling interpreter for a significant performance improvement
• The bundled OpenSSL version was updated from 3.0.15 to 3.0.16 which fixes a security advisory

See the python-build-standalone release notes for more details.

Bug fixes

• Fix cross-drive script installation (#​11167)
• Add indexes in priority order (#​11451)
• Allow --python <dir> requests to match existing environments if sys.executable is the same file (#​11290)
• Avoid comparing to system site packages in --dry-run mode (#​11427)
• Prefer running executables in the environment with <name> over <name>/__main__.py (#​11431)
• Retry local clones without hardlinks if they fail (#​11421)

Documentation

• Update alternative-indexes.md to use UV_INDEX instead of UV_EXTRA_INDEX_URL (#​11381)
• Update scripts guide to include using package indexes (#​11443)