0.10.3

## Release Notes

Released on 2026-02-16.

### Python

- Add CPython 3.15.0a6

### Enhancements

- Don't open file locks for writing ([#17956](https://github.com/astral-sh/uv/pull/17956))
- Make Windows trampoline error messages consistent with uv proper ([#17969](https://github.com/astral-sh/uv/pull/17969))
- Log which preview features are enabled ([#17968](https://github.com/astral-sh/uv/pull/17968))

### Preview features

- Add support for ruff version constraints and `exclude-newer` in `uv format` ([#17651](https://github.com/astral-sh/uv/pull/17651))
- Fix script path handling when `target-workspace-discovery` is enabled ([#17965](https://github.com/astral-sh/uv/pull/17965))
- Use version constraints to select the default ruff version used by `uv format` ([#17977](https://github.com/astral-sh/uv/pull/17977))

### Bug fixes

- Avoid matching managed Python versions by prefixes, e.g. don't match CPython 3.10 when `cpython-3.1` is specified ([#17972](https://github.com/astral-sh/uv/pull/17972))
- Fix handling of `--allow-existing` with minor version links on Windows ([#17978](https://github.com/astral-sh/uv/pull/17978))
- Fix panic when encountering unmanaged workspace members ([#17974](https://github.com/astral-sh/uv/pull/17974))
- Improve accuracy of request timing ([#18007](https://github.com/astral-sh/uv/pull/18007))
- Reject `u64::MAX` in version segments to prevent overflow ([#17985](https://github.com/astral-sh/uv/pull/17985))

### Documentation

- Reference Debian Trixie instead of Bookworm ([#17991](https://github.com/astral-sh/uv/pull/17991))

## Install uv 0.10.3

### Install prebuilt binaries via shell script

```sh
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.10.3/uv-installer.sh | sh
```

### Install prebuilt binaries via powershell script

```sh
powershell -ExecutionPolicy Bypass -c "irm https://github.com/astral-sh/uv/releases/download/0.10.3/uv-installer.ps1 | iex"
```

## Download uv 0.10.3

|  File  | Platform | Checksum |
|--------|----------|----------|
| [uv-aarch64-apple-darwin.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-apple-darwin.tar.gz) | Apple Silicon macOS | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-apple-darwin.tar.gz.sha256) |
| [uv-x86_64-apple-darwin.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-apple-darwin.tar.gz) | Intel macOS | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-apple-darwin.tar.gz.sha256) |
| [uv-aarch64-pc-windows-msvc.zip](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-pc-windows-msvc.zip) | ARM64 Windows | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-pc-windows-msvc.zip.sha256) |
| [uv-i686-pc-windows-msvc.zip](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-pc-windows-msvc.zip) | x86 Windows | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-pc-windows-msvc.zip.sha256) |
| [uv-x86_64-pc-windows-msvc.zip](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-pc-windows-msvc.zip) | x64 Windows | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-pc-windows-msvc.zip.sha256) |
| [uv-aarch64-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-unknown-linux-gnu.tar.gz) | ARM64 Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-unknown-linux-gnu.tar.gz.sha256) |
| [uv-i686-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-unknown-linux-gnu.tar.gz) | x86 Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-unknown-linux-gnu.tar.gz.sha256) |
| [uv-powerpc64-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-powerpc64-unknown-linux-gnu.tar.gz) | PPC64 Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-powerpc64-unknown-linux-gnu.tar.gz.sha256) |
| [uv-powerpc64le-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-powerpc64le-unknown-linux-gnu.tar.gz) | PPC64LE Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-powerpc64le-unknown-linux-gnu.tar.gz.sha256) |
| [uv-riscv64gc-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-riscv64gc-unknown-linux-gnu.tar.gz) | RISCV Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-riscv64gc-unknown-linux-gnu.tar.gz.sha256) |
| [uv-s390x-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-s390x-unknown-linux-gnu.tar.gz) | S390x Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-s390x-unknown-linux-gnu.tar.gz.sha256) |
| [uv-x86_64-unknown-linux-gnu.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-unknown-linux-gnu.tar.gz) | x64 Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-unknown-linux-gnu.tar.gz.sha256) |
| [uv-armv7-unknown-linux-gnueabihf.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-armv7-unknown-linux-gnueabihf.tar.gz) | ARMv7 Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-armv7-unknown-linux-gnueabihf.tar.gz.sha256) |
| [uv-aarch64-unknown-linux-musl.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-unknown-linux-musl.tar.gz) | ARM64 MUSL Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-aarch64-unknown-linux-musl.tar.gz.sha256) |
| [uv-i686-unknown-linux-musl.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-unknown-linux-musl.tar.gz) | x86 MUSL Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-i686-unknown-linux-musl.tar.gz.sha256) |
| [uv-x86_64-unknown-linux-musl.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-unknown-linux-musl.tar.gz) | x64 MUSL Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-x86_64-unknown-linux-musl.tar.gz.sha256) |
| [uv-arm-unknown-linux-musleabihf.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-arm-unknown-linux-musleabihf.tar.gz) | ARMv6 MUSL Linux (Hardfloat) | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-arm-unknown-linux-musleabihf.tar.gz.sha256) |
| [uv-armv7-unknown-linux-musleabihf.tar.gz](https://github.com/astral-sh/uv/releases/download/0.10.3/uv-armv7-unknown-linux-musleabihf.tar.gz) | ARMv7 MUSL Linux | [checksum](https://github.com/astral-sh/uv/releases/download/0.10.3/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>
```