uv 0.9.25

on Python PyPI

Release Notes

Released on 2026-01-13.

Python

• Add CPython 3.15.0a4
• Upgrade Tcl/Tk used by CPython to 9.0

Enhancements

• Add --compile-bytecode to uv python install and uv python upgrade to compile the standard library (#17088)
• Allow disabling exclude-newer per package (#16854)
• Broadcast WM_SETTINGCHANGE on uv tool update-shell (#17404)

Preview features

• Detect workspace from uv run target (#17423)

Bug fixes

• Avoid unwrapping size for file responses (#17434)
• Use keyring authentication when retrieving tool@latest version (#17448)
• Use latest Pyodide version for each python version (#17372)
• Improve trampoline file handle closing (#17374)
• Fix error message when installing musl python on armv7 (#17213)

Install uv 0.9.25

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.9.25/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/uv/releases/download/0.9.25/uv-installer.ps1 | iex"

Download uv 0.9.25

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>