#rstats I'm very happy to announce Jarl 0.5.0!

Jarl is a very fast R linter, written in Rust. This release brings many improvements and fixes:

- check R code chunks in R Markdown and Quarto docs
- check "@examples" and "@examplesIf" sections if you use roxygen2
- detect unused or duplicated functions in pkgs
- rules on specific pkgs, e.g. on `dplyr::filter()`, are now possible. Feel free to suggest more and in other pkgs too!

Post: https://www.etiennebacher.com/posts/2026-03-23-jarl-0.5.0/

Changelog: https://jarl.etiennebacher.com/changelog

Jarl 0.5.0

@etiennebacher oooo just gonna say that R-ers in our organization likes Jarl so much they are changing our pre-commit from using air to Jarl :)
@bentoh happy to read that! But Jarl is a replacement for lintr rather than Air, so you can pair Jarl and Air in precommit. See this page: https://jarl.etiennebacher.com/howto/precommit
Pre-commit tools – Jarl

@etiennebacher right correction here we using air and jarl and ditching lintr 😅