j178/prek v0.5.4

0.5.4

on GitHub

Release Notes

Released on 2026-09-28.

Highlights

Faster builtin hooks

In our end-to-end benchmark, prek is about 38% faster than 0.5.3, with some builtin
hooks up to 273% faster (check-yaml: 273%, check-json: 80%,
check-merge-conflict: 71%).

Enhancements

• Add include_deleted to allow hooks to include deleted files (#2733)
• Add --check and simplify end-of-file-fixer (#2764)
• Add --check to file-contents-sorter (#2765)
• Add --check to requirements-txt-fixer (#2766)
• Add --check to trailing-whitespace (#2763)
• Expose and document prek util generate-shell-completion (#2727)
• Support hide_status in project and user configuration (#2760)
• Support look-around regex in builtin pattern hooks (#2732)

Performance

• Cache the resolved Git executable on macOS (#2726)
• Combine and cache Git repository path queries (#2724)
• Optimize common builtin hook execution (#2768)
• Optimize scanning in mixed-line-ending and trailing-whitespace (#2769)
• Scan check-merge-conflict files in fixed-size blocks (#2781)
• Use SIMD UTF-8 validation in check-json, check-toml, and check-yaml (#2770)

Bug fixes

• Retry transient rename failures on Windows (#2756)
• Use PATH to resolve prek in completion scripts (#2719)

Documentation

• Clarify the flow and scope of usage guides (#2710)
• Reorganize usage guides and reference documentation (#2709)

Other changes

• Sync latest identify tags (#2762)

Contributors

• @github-actions
• @j178

Install prek 0.5.4

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/j178/prek/releases/download/v0.5.4/prek-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/j178/prek/releases/download/v0.5.4/prek-installer.ps1 | iex"

Install prebuilt binaries via Homebrew

brew install prek

Download prek 0.5.4

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 j178/prek

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>