Features

• Improve pre-commit migrate-config to handle more yaml formats.
  • #3301 PR by @asottile.
• Handle stages deprecation in pre-commit migrate-config.
  • #3302 PR by @asottile.
  • #2732 issue by @asottile.
• Upgrade ruby-build.
  • #3199 PR by @ThisGuyCodes.
• Add "sensible regex" warnings to repo: meta.
  • #3311 PR by @asottile.
• Add warnings for deprecated stages (commit -> pre-commit, push ->
  pre-push, merge-commit -> pre-merge-commit).
  • #3312 PR by @asottile.
  • #3313 PR by @asottile.
  • #3315 PR by @asottile.
  • #2732 issue by @asottile.

Migrating

• language: python_venv has been removed -- use language: python instead.
  • #3320 PR by @asottile.
  • #2734 issue by @asottile.