uv 0.9.29

on Python PyPI

Release Notes

Released on 2026-02-03.

Python

• Update to Pyodide 0.29.3 (#17730)

Enhancements

• Add wheel-tag-style aliases for manylinux platform names (#17750)
• Hint on uv version --bump dev similar to pre-release bumps (#17796)
• Improve display of RFC 9457 Problem Detail responses in uv publish server errors (#17787)
• Improve the wording of publish errors during dry-run (#17782)
• Set backoff to 10 retries (#17816)
• Add properties to synthentic and project roots in Cyclone DX exports (#17820)
• Identify the invidividual clients in uv publish trace logs (#17784)

Preview features

• Remove special casing for base and default conda environment names (#17758)

Bug fixes

• Fix PYTHONHOME inheritance when spawning different Python versions (#17821)
• Fix wheel rejections on freethreading+debug builds (#17812)
• Pad with zeros during comparisons in EqualStar and NotEqualStar operators (#17751)
• Reject unknown field names in conflict declarations (#17727)
• Fix panics in system-configuration in sandboxes (#17829)

Documentation

• Update pip pre-release compatibility information (#17788)

Security

• Hide a subset of environment variable values in --help (#17745)

Install uv 0.9.29

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.9.29/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/uv/releases/download/0.9.29/uv-installer.ps1 | iex"

Download uv 0.9.29

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/uv

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>