v0.2.30

j178/prekv0.2.30Jan 18, 2026by github-actions[bot]
AI Summary

Patch release focused on performance optimizations with minimal-size binary profiles and bug fixes for Windows command lookup and Docker image handling.
Key Highlights

Build binaries using minimal-size profile
Check for duplicate keys in check-json5 builtin hook
Preserve quoting style in auto-update
Show warning if file lock acquiring blocks
Singleflight Python health checks
New Features

Minimal-size binary builds
Duplicate key checking in check-json5
Quoting style preservation in auto-update
File lock warning system
Python health check caching
Full Release Notes

## Release Notes

Released on 2026-01-18.

### Enhancements

- Build binaries using minimal-size profile ([#1376](https://github.com/j178/prek/pull/1376))
- Check for duplicate keys in `check-json5` builtin hook ([#1387](https://github.com/j178/prek/pull/1387))
- Preserve quoting style in `auto-update` ([#1379](https://github.com/j178/prek/pull/1379))
- Show warning if file lock acquiring blocks for long time ([#1353](https://github.com/j178/prek/pull/1353))
- Singleflight Python health checks with cached interpreter info ([#1381](https://github.com/j178/prek/pull/1381))

### Bug fixes

- Do not resolve entry for docker_image ([#1386](https://github.com/j178/prek/pull/1386))
- Fix command lookup on Windows ([#1383](https://github.com/j178/prek/pull/1383))

### Documentation

- Document language support details ([#1380](https://github.com/j178/prek/pull/1380))
- Document that `check-json5` now rejects duplicate keys ([#1391](https://github.com/j178/prek/pull/1391))

### Contributors

- @j178

## Install prek 0.2.30

### Install prebuilt binaries via shell script

```sh
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/j178/prek/releases/download/v0.2.30/prek-installer.sh | sh
```

### Install prebuilt binaries via powershell script

```sh
powershell -ExecutionPolicy Bypass -c "irm https://github.com/j178/prek/releases/download/v0.2.30/prek-installer.ps1 | iex"
```

### Install prebuilt binaries via Homebrew

```sh
brew install j178/tap/prek
```

### Install prebuilt binaries into your npm project

```sh
npm install @j178/prek@0.2.30
```

## Download prek 0.2.30

|  File  | Platform | Checksum |
|--------|----------|----------|
| [prek-aarch64-apple-darwin.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-apple-darwin.tar.gz) | Apple Silicon macOS | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-apple-darwin.tar.gz.sha256) |
| [prek-x86_64-apple-darwin.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-apple-darwin.tar.gz) | Intel macOS | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-apple-darwin.tar.gz.sha256) |
| [prek-aarch64-pc-windows-msvc.zip](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-pc-windows-msvc.zip) | ARM64 Windows | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-pc-windows-msvc.zip.sha256) |
| [prek-i686-pc-windows-msvc.zip](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-pc-windows-msvc.zip) | x86 Windows | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-pc-windows-msvc.zip.sha256) |
| [prek-x86_64-pc-windows-msvc.zip](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-pc-windows-msvc.zip) | x64 Windows | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-pc-windows-msvc.zip.sha256) |
| [prek-aarch64-unknown-linux-gnu.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-unknown-linux-gnu.tar.gz) | ARM64 Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-unknown-linux-gnu.tar.gz.sha256) |
| [prek-i686-unknown-linux-gnu.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-unknown-linux-gnu.tar.gz) | x86 Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-unknown-linux-gnu.tar.gz.sha256) |
| [prek-riscv64gc-unknown-linux-gnu.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-riscv64gc-unknown-linux-gnu.tar.gz) | RISCV Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-riscv64gc-unknown-linux-gnu.tar.gz.sha256) |
| [prek-s390x-unknown-linux-gnu.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-s390x-unknown-linux-gnu.tar.gz) | S390x Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-s390x-unknown-linux-gnu.tar.gz.sha256) |
| [prek-x86_64-unknown-linux-gnu.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-unknown-linux-gnu.tar.gz) | x64 Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-unknown-linux-gnu.tar.gz.sha256) |
| [prek-armv7-unknown-linux-gnueabihf.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-armv7-unknown-linux-gnueabihf.tar.gz) | ARMv7 Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-armv7-unknown-linux-gnueabihf.tar.gz.sha256) |
| [prek-aarch64-unknown-linux-musl.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-unknown-linux-musl.tar.gz) | ARM64 MUSL Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-aarch64-unknown-linux-musl.tar.gz.sha256) |
| [prek-i686-unknown-linux-musl.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-unknown-linux-musl.tar.gz) | x86 MUSL Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-i686-unknown-linux-musl.tar.gz.sha256) |
| [prek-x86_64-unknown-linux-musl.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-unknown-linux-musl.tar.gz) | x64 MUSL Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-x86_64-unknown-linux-musl.tar.gz.sha256) |
| [prek-arm-unknown-linux-musleabihf.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-arm-unknown-linux-musleabihf.tar.gz) | ARMv6 MUSL Linux (Hardfloat) | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-arm-unknown-linux-musleabihf.tar.gz.sha256) |
| [prek-armv7-unknown-linux-musleabihf.tar.gz](https://github.com/j178/prek/releases/download/v0.2.30/prek-armv7-unknown-linux-musleabihf.tar.gz) | ARMv7 MUSL Linux | [checksum](https://github.com/j178/prek/releases/download/v0.2.30/prek-armv7-unknown-linux-musleabihf.tar.gz.sha256) |