astral-sh/uv 0.4.21

on GitHub

Release Notes

Enhancements

• Add support for managed installations of free-threaded Python (#8100)
• Add note about uvx to uv tool run short help (#7695)
• Enable HTTP/2 requests (#8049)
• Support uv tree --no-dev (#8109)
• Support PEP 723 metadata with uv run - (#8111)
• Support pip install --exact (#8044)
• Support uv export --no-header (#8096)
• ADd Python 3.13 images to Docker publish (#8105)
• Support remote (https://) scripts in uv run (#6375)
• Allow comma value-delimited arguments in uv run --with (#7909)

Configuration

• Support wildcards in UV_INSECURE_HOST (#8052)

Performance

• Use shared index when fetching metadata in lock satisfaction routine (#8147)

Bug fixes

• Add prerelease compatibility check to uv python CLI (#8020)
• Avoid deleting a project environment directory if we cannot tell if a pyvenv.cfg file exists (#8012)
• Avoid excluding valid wheels for exact requires-python bounds (#8140)
• Bump netrc crate to latest commit (#8021)
• Fix uv python pin 3.13t failure when parsing version for project requires check (#8056)
• Fix handling of != intersections in requires-python (#7897)
• Remove the newly created tool environment if sync failed (#8038)
• Respect dynamic extras in uv lock and uv sync (#8091)
• Treat resolver failures as fatal in lockfile validation (#8083)
• Use git config --get for author information for improved backwards compatibility (#8101)
• Use comma-separated values for UV_FIND_LINKS (#8061)
• Use shared resolver state between add and lock to avoid double Git update (#8146)
• Make --relocatable entrypoints robust to symlinking (#8079)
• Improve compatibility with VSCode PS1 prompt (#8006)
• Fix "Stream did not contain valid UTF-8" failures in Windows (#8120)
• Use --with-requirements in uvx error hint (#8112)

Documentation

• Include uvx installation in Docker examples (#8179)
• Make the instructions for the Windows standalone installer consistent across README and documentation (#8125)
• Update pip compatibility guide to note transitive URL dependency support (#8081)
• Document --reinstall with --exclude-newer to ensure downgrades (#6721)

Install uv 0.4.21

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.4.21/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy ByPass -c "irm https://github.com/astral-sh/uv/releases/download/0.4.21/uv-installer.ps1 | iex"

Download uv 0.4.21