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Use semver fallback sort when tag timestamps are equal#1579

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j178 merged 3 commits into
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shaanmajid:fix/autoupdate-equal-timestamp
Feb 6, 2026
Merged

Use semver fallback sort when tag timestamps are equal#1579
j178 merged 3 commits into
j178:masterfrom
shaanmajid:fix/autoupdate-equal-timestamp

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@shaanmajid

@shaanmajid shaanmajid commented Feb 6, 2026

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Fixes #1533

@codecov

codecov Bot commented Feb 6, 2026

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Codecov Report

❌ Patch coverage is 97.29730% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 91.66%. Comparing base (4ff825e) to head (c26bdb2).
⚠️ Report is 6 commits behind head on master.

Files with missing lines Patch % Lines
crates/prek/src/cli/auto_update.rs 97.29% 1 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##           master    #1579      +/-   ##
==========================================
+ Coverage   91.58%   91.66%   +0.08%     
==========================================
  Files          92       93       +1     
  Lines       18136    18312     +176     
==========================================
+ Hits        16610    16786     +176     
  Misses       1526     1526              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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@shaanmajid shaanmajid changed the title Fix/autoupdate equal timestamp fix(auto-update): use semver fallback sort when tag timestamps are equal Feb 6, 2026
@shaanmajid shaanmajid marked this pull request as ready for review February 6, 2026 02:58
@shaanmajid shaanmajid requested a review from j178 as a code owner February 6, 2026 02:58
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prek-ci-bot Bot commented Feb 6, 2026

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📦 Cargo Bloat Comparison

Binary size change: +0.42% (23.6 MiB → 23.7 MiB)

Expand for cargo-bloat output

Head Branch Results

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@shaanmajid shaanmajid force-pushed the fix/autoupdate-equal-timestamp branch from 0e0b906 to ace89aa Compare February 6, 2026 03:05
@shaanmajid

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It does feel a bit gross to have to extract SemVer logic here, but it seems both appropriate and necessary as a way of resolving the issue.

When all tags share the same creation timestamp (common in mirror
repos), the previous sort order was non-deterministic and could
select an older version. Add a stable secondary sort that prefers
higher semver versions within equal-timestamp groups.

Fixes j178#1533
- Remove redundant `git config` calls from `create_local_git_repo`;
  `git_cmd()` already passes these via `-c` flags on every invocation.
- Extract `create_repo_inner` with `increment_timestamps` flag and add
  `create_local_git_repo_fixed_ts` for equal-timestamp test scenarios.
- Simplify `auto_update_equal_timestamp_tags_picks_highest_version` to
  use the new helper instead of 110 lines of manual repo setup.
- Add test for mixed semver/non-semver tags at equal timestamps
  (exercises the Ok/Err match arms in the sort comparator).
- Add test for mixed timestamp groups with equal-timestamp subgroups
  (validates primary timestamp sort is preserved with semver tiebreaker).
@shaanmajid shaanmajid force-pushed the fix/autoupdate-equal-timestamp branch from ace89aa to 2eb1774 Compare February 6, 2026 03:23
@j178

j178 commented Feb 6, 2026

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(The color test failure is a known flaky test)

@j178 j178 added the bug Something isn't working label Feb 6, 2026
j178
j178 previously approved these changes Feb 6, 2026

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Awesome!

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Pull request overview

This PR fixes prek auto-update incorrectly rolling back to older tags in mirror repositories when multiple tags share the same timestamp (as in issue #1533), by adding a semver-based tie-breaker when timestamps are equal.

Changes:

  • Add semver-aware ordering for equal-timestamp tag groups during auto-update tag selection.
  • Add integration tests covering equal-timestamp semver selection, semver-vs-nonsemver preference, and mixed timestamp groups.
  • Add a unit test to validate the equal-timestamp ordering behavior in get_tag_timestamps.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File Description
crates/prek/src/cli/auto_update.rs Adds semver-based sorting within equal-timestamp tag groups and a unit test for the behavior.
crates/prek/tests/auto_update.rs Adds integration tests and helper support for constructing repos with equal timestamps to reproduce/guard against the rollback scenario.

Comment thread crates/prek/src/cli/auto_update.rs Outdated
Comment thread crates/prek/src/cli/auto_update.rs Outdated
@j178 j178 changed the title fix(auto-update): use semver fallback sort when tag timestamps are equal Use semver fallback sort when tag timestamps are equal Feb 6, 2026
@j178 j178 merged commit 9172278 into j178:master Feb 6, 2026
49 checks passed
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request May 8, 2026
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [prek](https://github.com/j178/prek) | patch | `0.3.1` → `0.3.13` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>j178/prek (prek)</summary>

### [`v0.3.13`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0313)

[Compare Source](j178/prek@v0.3.12...v0.3.13)

Released on 2026-05-06.

##### Bug fixes

- Respect hook filters for message files ([#&#8203;2049](j178/prek#2049))

##### Documentation

- Add Godot Engine to users in README ([#&#8203;2047](j178/prek#2047))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;Calinou](https://github.com/Calinou)

### [`v0.3.12`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0312)

[Compare Source](j178/prek@v0.3.11...v0.3.12)

Released on 2026-05-05.

##### Highlights

`auto_update.cooldown_days` is now available in both the user-level global
config (`~/.config/prek/prek.toml` on Linux and macOS, or
`$XDG_CONFIG_HOME/prek/prek.toml` when set; `%APPDATA%\prek\prek.toml` on
Windows) and project config. Set a user default for `prek auto-update`, then
override it per project when a repository needs a different update cadence.

```toml
[auto_update]
cooldown_days = 7
```

##### Enhancements

- Add global auto-update cooldown config ([#&#8203;2041](j178/prek#2041))
- Add project auto-update cooldown config ([#&#8203;2044](j178/prek#2044))
- Support `language: dart` ([#&#8203;1146](j178/prek#1146))

##### Bug fixes

- Pass commit message file to workspace hooks ([#&#8203;2043](j178/prek#2043))
- Preserve non-UTF8 filenames from git ([#&#8203;2023](j178/prek#2023))
- ruby: put resolved Ruby's bin dir on `$PATH` for `gem` invocations ([#&#8203;2021](j178/prek#2021))

##### Documentation

- Update docs with the new logo and icon ([#&#8203;2025](j178/prek#2025))
- Point schema docs to SchemaStore ([#&#8203;2039](j178/prek#2039))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;xiaoyanli-lyft](https://github.com/xiaoyanli-lyft)
- [@&#8203;Lutra-Fs](https://github.com/Lutra-Fs)

### [`v0.3.11`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0311)

[Compare Source](j178/prek@v0.3.10...v0.3.11)

Released on 2026-04-27.

##### Highlights

Hook entries now have an explicit `shell` option for shell snippets. Set
`shell: sh`, `bash`, `pwsh`, `powershell`, or `cmd` when an entry should be
evaluated by that shell; leaving it unset keeps prek's direct argv execution.

`prek auto-update` can now filter tag candidates before choosing an update.
Both options take glob patterns: use `--include-tag` to only consider matching
tag names, and `--exclude-tag` to skip matching tags such as moving tags or
prereleases.

##### Enhancements

- Add `auto-update --exclude-repo <repo>` to skip repos ([#&#8203;1983](j178/prek#1983))
- Add `auto-update --exit-code` to exit with non-zero on updates ([#&#8203;2002](j178/prek#2002))
- Add `auto-update --include-tag <pattern>`/`--exclude-tag <pattern>` to filter tags ([#&#8203;1984](j178/prek#1984))
- Adds an explicit `shell` hook option for entries that should run as shell source ([#&#8203;2004](j178/prek#2004))
- Make `--hook-dir` optional for hook-impl ([#&#8203;1989](j178/prek#1989))
- Skip shim warning when `--script-version` is missing ([#&#8203;1990](j178/prek#1990))

##### Bug fixes

- Install Ruby executable in gem bin ([#&#8203;2017](j178/prek#2017))
- Use dedicated Android npm package ([#&#8203;1982](j178/prek#1982))
- Use stable repo keys without breaking cached clones ([#&#8203;1995](j178/prek#1995))

##### Documentation

- Explain prek name ([#&#8203;1980](j178/prek#1980))
- Clarify `pass_filenames` concurrency docs ([#&#8203;1999](j178/prek#1999))
- Reorganize documentation references ([#&#8203;2005](j178/prek#2005))
- Clarify hook author manifest env docs ([#&#8203;1991](j178/prek#1991))
- docs: add Sentry to users list ([#&#8203;1981](j178/prek#1981))

##### Contributors

- [@&#8203;j178](https://github.com/j178)

### [`v0.3.10`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#0310)

[Compare Source](j178/prek@v0.3.9...v0.3.10)

Released on 2026-04-21.

##### Enhancements

- Disallow rev for non-remote repos in schema ([#&#8203;1964](j178/prek#1964))
- Hide up-to-date output in non-verbose mode ([#&#8203;1942](j178/prek#1942))
- Improve merge conflict marker detection ([#&#8203;1937](j178/prek#1937))
- Keep finished hooks visible ([#&#8203;1967](j178/prek#1967))
- Preserve frozen comment spacing in auto-update ([#&#8203;1945](j178/prek#1945))
- Reimplement `@j178/prek` npm package ([#&#8203;1973](j178/prek#1973))

##### Bug fixes

- Prefer stable Rust toolchains ([#&#8203;1974](j178/prek#1974))

##### Documentation

- Add `SKILL.md` for prek ([#&#8203;1950](j178/prek#1950))
- Document `gh skill install j178/prek prek` to install prek skill for agents ([#&#8203;1951](j178/prek#1951))
- Improve compatibility and migration docs ([#&#8203;1940](j178/prek#1940))

##### Other changes

- Sync latest identify tags ([#&#8203;1947](j178/prek#1947))

##### Contributors

- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;renovate](https://github.com/renovate)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.9`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#039)

[Compare Source](j178/prek@v0.3.8...v0.3.9)

Released on 2026-04-13.

##### Highlight

`prek auto-update` is now stricter about pinned revisions and more useful in CI.
It now keeps `rev` and `# frozen:` comments in sync, can detect
[impostor commits](https://docs.zizmor.sh/audits/#impostor-commit) when validating pinned SHAs,
and lets you use `prek auto-update --check` to fail on both available updates and frozen-ref
mismatches without rewriting the config.

Examples:

```console
$ prek auto-update

# updates revs and repairs stale `# frozen:` comments

$ prek auto-update --freeze

# writes frozen SHAs with matching `# frozen: <tag>` comments

$ prek auto-update --check

# exits non-zero when updates are available, a `# frozen:` comment is stale,
# or a pinned SHA does not belong to the fetched upstream refs
```

##### Enhancements

- Check and sync frozen comments during auto-update ([#&#8203;1896](j178/prek#1896))
- Handle impostor commits in auto-update ([#&#8203;1919](j178/prek#1919))
- Add experimental `language: dotnet` support ([#&#8203;1871](j178/prek#1871))
- Honor repo and worktree `core.hooksPath` ([#&#8203;1892](j178/prek#1892))
- Add `prek run --no-fail-fast` to override config file ([#&#8203;1859](j178/prek#1859))
- Add `forbid-new-submodules` as builtin hook ([#&#8203;1853](j178/prek#1853))
- Clean stale patch files in `cache gc` ([#&#8203;1877](j178/prek#1877))
- Display auto-update results by config entry ([#&#8203;1922](j178/prek#1922))
- Restrict patch directory permissions ([#&#8203;1876](j178/prek#1876))
- Show tag names in `auto-update --freeze` output ([#&#8203;1916](j178/prek#1916))
- Use a bitset for hook stages ([#&#8203;1860](j178/prek#1860))

##### Bug fixes

- Canonicalize CWD and GIT\_ROOT paths ([#&#8203;1878](j178/prek#1878))
- Ensure quotes are added for non-string revisions in `auto-update` ([#&#8203;1936](j178/prek#1936))

##### Documentation

- Update docs for case of hooks modifying files with a non-zero exit code ([#&#8203;1879](j178/prek#1879))

##### Contributors

- [@&#8203;RicardoVercetti](https://github.com/RicardoVercetti)
- [@&#8203;nathanjmcdougall](https://github.com/nathanjmcdougall)
- [@&#8203;renovate](https://github.com/renovate)
- [@&#8203;sadjow](https://github.com/sadjow)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.8`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#038)

[Compare Source](j178/prek@v0.3.6...v0.3.8)

Released on 2026-03-23.

##### Enhancements

- Add experimental `language: deno` support ([#&#8203;1516](j178/prek#1516))
- Add `pretty-format-json` as builtin hook ([#&#8203;915](j178/prek#915))
- Add `check-vcs-permalinks` as builtin hook ([#&#8203;1842](j178/prek#1842))
- Add `check-illegal-windows-names` as builtin hook ([#&#8203;1841](j178/prek#1841))
- Add `check-shebang-scripts-are-executable` builtin hook ([#&#8203;1847](j178/prek#1847))
- Add `destroyed-symlinks` builtin hook ([#&#8203;1851](j178/prek#1851))
- Add `file-contents-sorter` as builtin hook ([#&#8203;1846](j178/prek#1846))
- Add `--all` flag to `prek uninstall` ([#&#8203;1817](j178/prek#1817))
- Improve file pattern parse errors ([#&#8203;1829](j178/prek#1829))
- Validate `uv` binary after download ([#&#8203;1825](j178/prek#1825))

##### Bug fixes

- Fix workspace-relative added file paths ([#&#8203;1852](j178/prek#1852))
- Relax alias-anchor ratio check for check-yaml ([#&#8203;1839](j178/prek#1839))

##### Contributors

- [@&#8203;j178](https://github.com/j178)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;mvanhorn](https://github.com/mvanhorn)
- [@&#8203;feliblo](https://github.com/feliblo)
- [@&#8203;Tiryoh](https://github.com/Tiryoh)

### [`v0.3.6`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#036)

[Compare Source](j178/prek@v0.3.5...v0.3.6)

Released on 2026-03-16.

##### Enhancements

- Allow selectors for hook ids containing colons ([#&#8203;1782](j178/prek#1782))
- Rename `prek install-hooks` to `prek prepare-hooks` and `prek install --install-hooks` to `prek install --prepare-hooks` ([#&#8203;1766](j178/prek#1766))
- Retry auth-failed repo clones with terminal prompts enabled ([#&#8203;1761](j178/prek#1761))

##### Performance

- Optimize `detect_private_key` by chunked reading and using aho-corasick ([#&#8203;1791](j178/prek#1791))
- Optimize `fix_byte_order_marker` by shifting file contents in place ([#&#8203;1790](j178/prek#1790))

##### Bug fixes

- Align stage defaulting behavior with pre-commit ([#&#8203;1788](j178/prek#1788))
- Make sure child output is drained in the PTY subprocess ([#&#8203;1768](j178/prek#1768))
- fix(golang): use `GOTOOLCHAIN=local` when probing system go ([#&#8203;1797](j178/prek#1797))

##### Documentation

- Disambiguate “hook” terminology by renaming "Git hooks" to "Git shims" ([#&#8203;1776](j178/prek#1776))
- Document compatibility with pre-commit ([#&#8203;1767](j178/prek#1767))
- Update configuration.md with TOML 1.1 notes ([#&#8203;1764](j178/prek#1764))

##### Other changes

- Sync latest identify tags ([#&#8203;1798](j178/prek#1798))

##### Contributors

- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;pcastellazzi](https://github.com/pcastellazzi)
- [@&#8203;deadnews](https://github.com/deadnews)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)

### [`v0.3.5`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#035)

[Compare Source](j178/prek@v0.3.4...v0.3.5)

Released on 2026-03-09.

##### Enhancements

- Add automatic Ruby download support using rv binaries ([#&#8203;1668](j178/prek#1668))
- Adjust open file limit on process startup ([#&#8203;1705](j178/prek#1705))
- Allow parallel gem retry ([#&#8203;1732](j178/prek#1732))
- Enable system-proxy feature on reqwest ([#&#8203;1738](j178/prek#1738))
- Expose `--git-dir` to force hook installation target ([#&#8203;1723](j178/prek#1723))
- Pass `--quiet`, `--verbose`, and `--no-progress` through `prek install` into generated hook scripts ([#&#8203;1753](j178/prek#1753))
- Respect `core.sharedRepository` for hook permissions ([#&#8203;1755](j178/prek#1755))
- Support legacy mode hook script ([#&#8203;1706](j178/prek#1706))
- rust: support `cli:` git dependency 4th segment package disambiguation ([#&#8203;1747](j178/prek#1747))

##### Bug fixes

- Fix Python `__main__.py` entry ([#&#8203;1741](j178/prek#1741))
- python: strip `UV_SYSTEM_PYTHON` from `uv venv` and `pip install` commands ([#&#8203;1756](j178/prek#1756))

##### Other changes

- Sync latest identify tags ([#&#8203;1733](j178/prek#1733))

##### Contributors

- [@&#8203;Dev-iL](https://github.com/Dev-iL)
- [@&#8203;tennox](https://github.com/tennox)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;is-alnilam](https://github.com/is-alnilam)
- [@&#8203;github-actions](https://github.com/github-actions)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.4`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#034)

[Compare Source](j178/prek@v0.3.3...v0.3.4)

Released on 2026-02-28.

##### Enhancements

- Allow `pass_filenames` to accept a positive integer ([#&#8203;1698](j178/prek#1698))
- Install and compile gems in parallel ([#&#8203;1674](j178/prek#1674))
- Sync identify file-type mappings with pre-commit identify ([#&#8203;1660](j178/prek#1660))
- Use `--locked` for Rust `cargo install` commands ([#&#8203;1661](j178/prek#1661))
- Add `PREK_MAX_CONCURRENCY` environment variable for configuring maximum concurrency ([#&#8203;1697](j178/prek#1697))
- Add `PREK_LOG_TRUNCATE_LIMIT` environment variable for configuring log truncation ([#&#8203;1679](j178/prek#1679))
- Add support for `python -m prek` ([#&#8203;1686](j178/prek#1686))

##### Bug fixes

- Skip invalid Rust toolchains instead of failing ([#&#8203;1699](j178/prek#1699))

##### Performance

- Bitset-based TagSet refactor: precompute tag masks and speed up hook type filtering ([#&#8203;1665](j178/prek#1665))

##### Documentation

- Document `winget install j178.Prek` ([#&#8203;1670](j178/prek#1670))

##### Contributors

- [@&#8203;uplsh580](https://github.com/uplsh580)
- [@&#8203;Svecco](https://github.com/Svecco)
- [@&#8203;dbast](https://github.com/dbast)
- [@&#8203;drichardson](https://github.com/drichardson)
- [@&#8203;JP-Ellis](https://github.com/JP-Ellis)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;is-alnilam](https://github.com/is-alnilam)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)

### [`v0.3.3`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#033)

[Compare Source](j178/prek@v0.3.2...v0.3.3)

Released on 2026-02-15.

##### Enhancements

- Read Python version specifier from hook repo `pyproject.toml` ([#&#8203;1596](j178/prek#1596))
- Add `#:schema` directives to generated prek.toml ([#&#8203;1597](j178/prek#1597))
- Add `prek util list-builtins` command ([#&#8203;1600](j178/prek#1600))
- Expand install source detection to `mise`, `uv tool`, `pipx`, and `asdf` ([#&#8203;1605](j178/prek#1605), [#&#8203;1607](j178/prek#1607))
- Add progress bar to `cache clean` and show removal summary ([#&#8203;1616](j178/prek#1616))
- Make `yaml-to-toml` CONFIG argument optional ([#&#8203;1593](j178/prek#1593))
- `prek uninstall` removes legacy scripts too ([#&#8203;1622](j178/prek#1622))

##### Bug fixes

- Fix underflow when formatting summary output ([#&#8203;1626](j178/prek#1626))
- Match `files/exclude` filter against relative path of nested project ([#&#8203;1624](j178/prek#1624))
- Select `musllinux` wheel tag for uv on musl-based distros ([#&#8203;1628](j178/prek#1628))

##### Documentation

- Clarify `prek list` description ([#&#8203;1604](j178/prek#1604))

##### Contributors

- [@&#8203;ichoosetoaccept](https://github.com/ichoosetoaccept)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)
- [@&#8203;soraxas](https://github.com/soraxas)
- [@&#8203;9999years](https://github.com/9999years)
- [@&#8203;j178](https://github.com/j178)

### [`v0.3.2`](https://github.com/j178/prek/blob/HEAD/CHANGELOG.md#032)

[Compare Source](j178/prek@v0.3.1...v0.3.2)

Released on 2026-02-06.

##### Highlights

- **`prek.toml` is here!**

  You can now use `prek.toml` as an alternative to `.pre-commit-config.yaml` for configuring prek. `prek.toml` mirrors the structure of `.pre-commit-config.yaml`, but TOML is less error-prone. Your existing `.pre-commit-config.yaml` will continue to work, but for new users and new projects, `prek.toml` may make more sense. If you want to switch, run `prek util yaml-to-toml` to convert YAML configs to `prek.toml`. See [configuration docs](configuration.md) for details.

  For example, this config:

  ```yaml
  repos:
    - repo: https://github.com/pre-commit/pre-commit-hooks
      rev: v6.0.0
      hooks:
        - id: check-yaml
  ```

  Can be written as `prek.toml` like this:

  ```toml
  [[repos]]
  repo = "https://github.com/pre-commit/pre-commit-hooks"
  rev = "v6.0.0"
  hooks = [ { id = "check-yaml" } ]
  ```

- **`serde-yaml` has been replaced with `serde-saphyr`**

  We replaced the long-deprecated `serde-yaml` crate with [`serde-saphyr`](https://crates.io/crates/serde-saphyr) for YAML parsing. It is written in safe Rust and has better error messages, performance, and security. This lets us provide precise location information for configuration parsing errors, which should make it easier to fix config issues.

  For example, this invalid config:

  ```yaml
  repos:
    - repo: https://github.com/crate-ci/typos
      hooks:
        - id: typos
  ```

  Before:

  ```console
  $ prek run
  error: Failed to parse `.pre-commit-config.yaml`
    caused by: Invalid remote repo: missing field `rev`
  ```

  Now:

  ```console
  $ prek run
  error: Failed to parse `.pre-commit-config.yaml`
  caused by: error: line 2 column 5: missing field `rev` at line 2, column 5
  --> <input>:2:5
    |
  1 | repos:
  2 |   - repo: https://github.com/crate-ci/typos
    |     ^ missing field `rev` at line 2, column 5
  3 |     hooks:
  4 |       - id: typos
    |
  ```

- **`prek util` subcommands**

  We added a new `prek util` top-level command for miscellaneous utilities that don't fit into other categories. The first two utilities are:

  - `prek util identify`: shows the identification tags of files that prek uses for file filtering, which can be useful for debugging and writing `types/types_or/exclude_types` filters.
  - `prek util yaml-to-toml`: converts `.pre-commit-config.yaml` to `prek.toml`.

  We also moved `prek init-template-dir` under `prek util` for better organization. The old `prek init-template-dir` command is still available (hidden) as an alias for backward compatibility.

##### Enhancements

- Add `prek util identify` subcommand ([#&#8203;1554](j178/prek#1554))
- Add `prek util yaml-to-toml` to convert `.pre-commit-config.yaml` to `prek.toml` ([#&#8203;1584](j178/prek#1584))
- Detect install source for actionable upgrade hints ([#&#8203;1540](j178/prek#1540))
- Detect prek installed by the standalone installer ([#&#8203;1545](j178/prek#1545))
- Implement `serialize_yaml_scalar` using `serde-saphyr` ([#&#8203;1534](j178/prek#1534))
- Improve max cli arguments length calculation ([#&#8203;1518](j178/prek#1518))
- Move `identify` and `init-template-dir` under the `prek util` top-level command ([#&#8203;1574](j178/prek#1574))
- Replace serde-yaml with serde-saphyr (again) ([#&#8203;1520](j178/prek#1520))
- Show precise location for config parsing error ([#&#8203;1530](j178/prek#1530))
- Support `Julia` language ([#&#8203;1519](j178/prek#1519))
- Support `prek.toml` ([#&#8203;1271](j178/prek#1271))
- Added `PREK_QUIET` environment variable support ([#&#8203;1513](j178/prek#1513))
- Remove upper bound constraint of uv version ([#&#8203;1588](j178/prek#1588))

##### Bug fixes

- Do not make the child a session leader ([#&#8203;1586](j178/prek#1586))
- Fix FilePattern schema to accept plain strings ([#&#8203;1564](j178/prek#1564))
- Use semver fallback sort when tag timestamps are equal ([#&#8203;1579](j178/prek#1579))

##### Documentation

- Add `OpenClaw` to the list of users ([#&#8203;1517](j178/prek#1517))
- Add `cachix/devenv`, `apache/lucene`, `copper-project/copper-rs` as projects using prek ([#&#8203;1531](j178/prek#1531), [#&#8203;1514](j178/prek#1514), [#&#8203;1569](j178/prek#1569))
- Add document about authoring remote hooks ([#&#8203;1571](j178/prek#1571))
- Add `llms.txt` generation for LLM-friendly documentation ([#&#8203;1553](j178/prek#1553))
- Document using `--refresh` to pick up `.prekignore` changes ([#&#8203;1575](j178/prek#1575))
- Fix PowerShell completion instruction syntax ([#&#8203;1568](j178/prek#1568))
- Update quick start to use `prek.toml` ([#&#8203;1576](j178/prek#1576))

##### Other changes

- Include `prek.toml` in run hint for config filename ([#&#8203;1578](j178/prek#1578))

##### Contributors

- [@&#8203;fatelei](https://github.com/fatelei)
- [@&#8203;domenkozar](https://github.com/domenkozar)
- [@&#8203;makeecat](https://github.com/makeecat)
- [@&#8203;fllesser](https://github.com/fllesser)
- [@&#8203;j178](https://github.com/j178)
- [@&#8203;copilot-swe-agent](https://github.com/copilot-swe-agent)
- [@&#8203;oopscompiled](https://github.com/oopscompiled)
- [@&#8203;rmuir](https://github.com/rmuir)
- [@&#8203;shaanmajid](https://github.com/shaanmajid)

</details>

---

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  - At any time (no schedule defined)
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prek autoupdate rollbacks csslint from 1.0.5 to 1.0.0

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