uv Files

Release Notes

Python

• On Mac/Linux, libtcl, libtk, and _tkinter are built as separate shared objects, which fixes matplotlib's tkagg backend (the default on Linux), Pillow's PIL.ImageTk library, and other extension modules that need to use libtcl/libtk directly.
• Tix is no longer provided on Linux. This is a deprecated Tk extension that appears to have been previously broken.

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

Enhancements

• Do not update uv.lock when using --isolated (#15154)
• Add support for --prefix and --with installations in find_uv_bin (#14184)
• Add support for discovering base prefix installations in find_uv_bin (#14181)
• Improve error messages in find_uv_bin (#14182)
• Warn when two packages write to the same module (#13437)

Preview features

• Add support for package-level conflicts in workspaces (#14906)

Configuration

• Add UV_DEV and UV_NO_DEV environment variables (for --dev and --no-dev) (#15010)

Bug fixes

• Fix regression where --require-hashes applied to build dependencies in uv pip install (#15153)
• Ignore GraalPy devtags (#15013)
• Include all site packages directories in ephemeral environment overlays (#15121)
• Search in the user scheme scripts directory last in find_uv_bin (#14191)

Documentation

• Add missing periods (.) to list elements in Features docs page (#15138)

Install uv 0.8.7

Install prebuilt binaries via shell script

:::sh
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.8.7/uv-installer.sh | sh

Install prebuilt binaries via powershell script

:::sh
powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/uv/releases/download/0.8.7/uv-installer.ps1 | iex"

Download uv 0.8.7