Git 2.42 release: Here are four of our contributions in detail (about.gitlab.com)

The first link [1] in section "4. Code and test improvements" leads to a patch series with a cover letter which reads

  There are a number of tests that still follow an old convention of using
  four-space indentation. Update a bunch of tests to use the new convention
  with tab indentation

This feels a bit ridiculous to include this in such a blog post...

[1]: https://lore.kernel.org/git/pull.1513.git.git.1684440205.git...