6.4.3
- Changed: allow sequence definitions for ActiveRecord primary keys (Mike Burns).
- Changed: Support Ruby 3.0+, Rails 6.1+ (Mike Burns)
- Documentation improvements (obregonia1).
- Internal: GitHub Actions improvements (Lorenzo Zabot, ydah).
- Internal: RubyGems points to changelog (Tilo Sloboda).
- Internal: Bump standard, rake, activerecord, appraisal, rspec-rails (Mike Burns).