v0.3.2

Released to RubyGems on 2026-09-30.

Fixed

• Moving a record between owners now recounts the old owner when belongs_to uses a custom
  primary_key:.
• Polymorphic belongs_to with custom foreign_key:/foreign_type: no longer raises
  NoMethodError on save.
• Moving a record away from a polymorphic type whose class no longer exists no longer raises
  NameError; the new owner is still recounted.
• With includes(:counters), counters stay current after an update, and a missing counter
  returns 0 without a query.
• Two saves creating the same virtual counter at once no longer fail with
  ActiveRecord::RecordNotUnique; the second updates the row instead.
• update_counter_cache without its belongs_to raises a clear ArgumentError instead of
  NoMethodError ... for nil.

Changed

• Depend on activerecord and activesupport instead of all of rails.
• Require Ruby >= 3.1 in the gemspec, matching the README and Rails 7.2.
• Test against every non-EOL Ruby (3.3, 3.4, 4.0) and Rails (8.0, 8.1).
• Expand the test suite to cover all branches.
• README: fix the :if example (state_changed? is always false in after callbacks)
  and note that :if also applies to after_destroy.

Full changelog: v0.3.1...v0.3.2