chore(main): release flint 0.20.0

[github-actions]

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 and README.md for full setup instructions.

Quick reference for existing consumers:

[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 for v1 docs.

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0.20.0 (2026-04-13)

Features

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

Bug Fixes

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

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Important

Close and reopen this PR to trigger CI checks.

[github-actions]

🤖 Created releases:

• flint-v0.20.0

🌻