## flint v0.20.0 — Rust rewrite

flint has been rewritten from scratch in Rust. The bash + Docker stack
is replaced by a fast, cross-platform native binary with no container
dependency.

### Highlights

- **Native binary** — no Docker, no bash wrappers; runs anywhere mise
can install a Rust crate
- **Parallel linting** — all checks run concurrently
- **Diff-aware** — only checks files changed since the merge base by
default (`--full` for everything)
- **`flint update`** — migrates obsolete `mise.toml` tool keys
automatically (e.g. `ubi:` → `github:`, `npm:markdownlint-cli` →
`npm:markdownlint-cli2`)
- **`flint hook install`** — installs a pre-commit hook without any mise
task knowledge
- **New linters**: `gofmt`, `google-java-format`, `ktlint`,
`dotnet-format`, `markdownlint-cli2`, `xmllint` (via `cargo:xmloxide`),
`license-header` (pure-Rust, no binary)
- **Windows support** — ktlint self-executing JAR handled via explicit
`java -jar` invocation

### Migration

See
[AGENTS-V2.md](https://github.com/grafana/flint/blob/main/AGENTS-V2.md)
and [README.md](https://github.com/grafana/flint/blob/main/README.md)
for full setup instructions.

Quick reference for existing consumers:

```toml
[tools]
# While installing from source (pre-crates.io release):
"cargo:https://github.com/grafana/flint" = "branch:main"

[env]
FLINT_CONFIG_DIR = ".github/config"

[tasks.lint]
run = "flint run"

[tasks."lint:fix"]
run = "flint run --fix"
```

Remove: `lint:super-linter`, `lint:links`, `lint:renovate-deps`,
`setup:native-lint-tools`, `setup:pre-commit-hook` tasks. Run `flint
update` to auto-migrate any obsolete tool keys.

> [!NOTE]
> The changelog below includes entries from the legacy v1 bash era — see
[README-V1.md](https://github.com/grafana/flint/blob/main/README-V1.md)
for v1 docs.

---

##
[0.20.0](flint-v0.19.0...flint-v0.20.0)
(2026-04-13)


### Features

* add flint v2 Rust binary
([#139](#139))
([19f2b25](19f2b25))
* add native linting mode and version mapping infrastructure
([#93](#93))
([24b06da](24b06da))
* add Renovate shareable preset for consuming repos
([#17](#17))
([8a06590](8a06590))
* consolidate link checking and add autofix flags
([#7](#7))
([086a5e9](086a5e9))
* flint update command, explicit JAR flag, v0.20.0
([#146](#146))
([b43bf52](b43bf52))
* handle line-number anchors and issue comments globally
([#56](#56))
([cf751df](cf751df))
* **links:** add GitHub URL remaps for line-number and fragment anchors
([#28](#28))
([5b59065](5b59065))
* **links:** auto-remap base-branch GitHub URLs to PR branch
([#18](#18))
([dd6cc61](dd6cc61))
* **renovate:** support SHA-pinned URLs in Renovate preset
([#21](#21))
([4fd1f28](4fd1f28))
* **super-linter:** default to slim image
([#24](#24))
([c8eeab8](c8eeab8))
* support NATIVE env var for container-free linting
([#107](#107))
([0a8193d](0a8193d))


### Bug Fixes

* activate mise environment in native lint mode
([#123](#123))
([d0fec45](d0fec45))
* add 'mise run fix' hint to lint failure output
([#90](#90))
([5b4ad5d](5b4ad5d))
* decouple version mapping generation from pinned super-linter version
([#112](#112))
([5370e77](5370e77))
* **deps:** update rust crate crossterm to 0.29
([#156](#156))
([c59ae3e](c59ae3e))
* **deps:** update rust crate similar to v3
([#160](#160))
([684be4e](684be4e))
* **deps:** update rust crate toml to v1
([#161](#161))
([3aae614](3aae614))
* **deps:** update rust crate toml_edit to 0.25
([#158](#158))
([42d9efd](42d9efd))
* exclude GitHub compare links from lychee checks
([#10](#10))
([e714608](e714608))
* fail native lint when enabled tools are missing
([#111](#111))
([163bb6b](163bb6b))
* improve link checker reliability against GitHub rate limiting
([#95](#95))
([7a5282d](7a5282d))
* include staged files in native lint file list
([#135](#135))
([34412d6](34412d6))
* **links:** add regex anchors to remap patterns
([#19](#19))
([2e17348](2e17348))
* native lint in worktrees, trust toml, use ec binary, drop isort
([#134](#134))
([8594bba](8594bba))
* **release-please:** fix footer not appearing on release PRs
([#40](#40))
([d7a55e4](d7a55e4))
* remap same-repo GitHub URLs to local file paths
([#100](#100))
([b4feadd](b4feadd))
* **renovate-deps:** forward GITHUB_TOKEN as GITHUB_COM_TOKEN
([#132](#132))
([4d6510b](4d6510b))
* replace broken release-please PR comment with docs
([#12](#12))
([817b37d](817b37d))
* run shellcheck on .bats files in native mode
([#137](#137))
([a4fd3f8](a4fd3f8))
* strip Scroll to Text Fragment anchors in link checks
([#86](#86))
([b630cdf](b630cdf))
* tighten markdownlint config for native mode
([#106](#106))
([6ef25b2](6ef25b2))
* use remap instead of exclude for issue comment anchors
([#58](#58))
([656f355](656f355))

---
> [!IMPORTANT]
> Close and reopen this PR to trigger CI checks.

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>