astral-sh/uv 0.12.23

on GitHub

Release Notes

Released on 2026-10-03.

Python

• Add CPython 3.15.0rc3 (#22164)

Preview features

• Sync from uv.lock without a workspace manifest using uv sync --frozen with frozen-lockfile (#22018)
• Export from uv.lock without a workspace manifest using uv export --frozen with frozen-lockfile (#22007)
• Inspect dependency trees from uv.lock without a workspace manifest using uv tree --frozen with frozen-lockfile (#22016)
• Inspect workspace metadata and optionally sync its environment from uv.lock without a workspace manifest using uv workspace metadata --frozen with frozen-lockfile (#22017, #22018)

Bug fixes

• Reject alternate sources for workspace members across conflicting dependency selections, avoiding lockfiles that cannot be installed (#22153)
• Allow x86-64 Python interpreters running under emulation on Windows ARM64 to install compatible win_amd64 wheels instead of building from source (#22099)

Install uv 0.12.23

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-installer.ps1 | iex"

Download uv 0.12.23

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>