0.12.23
astral-sh/uv0.12.23Oct 3, 2026by astral-releases-bot[bot]
Upgrading?
AI Summary
Adds CPython 3.15.0rc3 and enables direct operations from `uv.lock` without a workspace manifest using the `frozen-lockfile` preview feature.
Key Highlights
- Add CPython 3.15.0rc3
- Enable `uv sync`, `uv export`, and `uv tree` to work from `uv.lock` without a workspace manifest using `--frozen`
- Fix workspace member source rejection for conflicting dependency selections
- Allow x86-64 Python interpreters running under emulation on Windows ARM64 to install compatible wheels
New Features
- Sync from `uv.lock` without a workspace manifest using `uv sync --frozen` with `frozen-lockfile`
- Export from `uv.lock` without a workspace manifest using `uv export --frozen` with `frozen-lockfile`
- Inspect dependency trees from `uv.lock` without a workspace manifest using `uv tree --frozen` with `frozen-lockfile`
- Inspect workspace metadata and optionally sync its environment from `uv.lock` without a workspace manifest using `uv workspace metadata --frozen` with `frozen-lockfile`
Full Release Notes
## Release Notes Released on 2026-10-03. ### Python - Add CPython 3.15.0rc3 ([#22164](https://github.com/astral-sh/uv/pull/22164)) ### Preview features - Sync from `uv.lock` without a workspace manifest using `uv sync --frozen` with `frozen-lockfile` ([#22018](https://github.com/astral-sh/uv/pull/22018)) - Export from `uv.lock` without a workspace manifest using `uv export --frozen` with `frozen-lockfile` ([#22007](https://github.com/astral-sh/uv/pull/22007)) - Inspect dependency trees from `uv.lock` without a workspace manifest using `uv tree --frozen` with `frozen-lockfile` ([#22016](https://github.com/astral-sh/uv/pull/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](https://github.com/astral-sh/uv/pull/22017), [#22018](https://github.com/astral-sh/uv/pull/22018)) ### Bug fixes - Reject alternate sources for workspace members across conflicting dependency selections, avoiding lockfiles that cannot be installed ([#22153](https://github.com/astral-sh/uv/pull/22153)) - Allow x86-64 Python interpreters running under emulation on Windows ARM64 to install compatible `win_amd64` wheels instead of building from source ([#22099](https://github.com/astral-sh/uv/pull/22099)) ## Install uv 0.12.23 ### Install prebuilt binaries via shell script ```sh 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 ```sh 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 | File | Platform | Checksum | |--------|----------|----------| | [uv-aarch64-apple-darwin.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-apple-darwin.tar.gz) | Apple Silicon macOS | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-apple-darwin.tar.gz.sha256) | | [uv-x86_64-apple-darwin.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-apple-darwin.tar.gz) | Intel macOS | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-apple-darwin.tar.gz.sha256) | | [uv-aarch64-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-pc-windows-msvc.zip) | ARM64 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-pc-windows-msvc.zip.sha256) | | [uv-i686-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-pc-windows-msvc.zip) | x86 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-pc-windows-msvc.zip.sha256) | | [uv-x86_64-pc-windows-msvc.zip](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-pc-windows-msvc.zip) | x64 Windows | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-pc-windows-msvc.zip.sha256) | | [uv-aarch64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-unknown-linux-gnu.tar.gz) | ARM64 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-unknown-linux-gnu.tar.gz.sha256) | | [uv-i686-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-unknown-linux-gnu.tar.gz) | x86 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-unknown-linux-gnu.tar.gz.sha256) | | [uv-powerpc64le-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-powerpc64le-unknown-linux-gnu.tar.gz) | PPC64LE Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-powerpc64le-unknown-linux-gnu.tar.gz.sha256) | | [uv-riscv64gc-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-riscv64gc-unknown-linux-gnu.tar.gz) | RISCV Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-riscv64gc-unknown-linux-gnu.tar.gz.sha256) | | [uv-s390x-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-s390x-unknown-linux-gnu.tar.gz) | S390x Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-s390x-unknown-linux-gnu.tar.gz.sha256) | | [uv-x86_64-unknown-linux-gnu.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-unknown-linux-gnu.tar.gz) | x64 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-unknown-linux-gnu.tar.gz.sha256) | | [uv-armv7-unknown-linux-gnueabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-armv7-unknown-linux-gnueabihf.tar.gz) | ARMv7 Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-armv7-unknown-linux-gnueabihf.tar.gz.sha256) | | [uv-aarch64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-unknown-linux-musl.tar.gz) | ARM64 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-aarch64-unknown-linux-musl.tar.gz.sha256) | | [uv-i686-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-unknown-linux-musl.tar.gz) | x86 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-i686-unknown-linux-musl.tar.gz.sha256) | | [uv-riscv64gc-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-riscv64gc-unknown-linux-musl.tar.gz) | RISCV MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-riscv64gc-unknown-linux-musl.tar.gz.sha256) | | [uv-x86_64-unknown-linux-musl.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-unknown-linux-musl.tar.gz) | x64 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-x86_64-unknown-linux-musl.tar.gz.sha256) | | [uv-arm-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-arm-unknown-linux-musleabihf.tar.gz) | ARMv6 MUSL Linux (Hardfloat) | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-arm-unknown-linux-musleabihf.tar.gz.sha256) | | [uv-armv7-unknown-linux-musleabihf.tar.gz](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-armv7-unknown-linux-musleabihf.tar.gz) | ARMv7 MUSL Linux | [checksum](https://releases.astral.sh/github/uv/releases/download/0.12.23/uv-armv7-unknown-linux-musleabihf.tar.gz.sha256) | ## 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](https://cli.github.com/manual/gh_attestation_verify): ```sh gh attestation verify <file-path of downloaded artifact> --repo astral-sh/uv ``` You can also download the attestation from [GitHub](https://github.com/astral-sh/uv/attestations) and verify against that directly: ```sh gh attestation verify <file-path of downloaded artifact> --bundle <file-path of downloaded attestation> ```
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