- Added instrumentation options for ActiveSupport::Cache::Store delete methods and improved test name output for parallel Rails tests.
- Fixed a wide range of Active Record issues, including query cache disabling, polymorphic join table saves, association scopes, dependent destroy for bi‑directional has_one through, connection pool pinning, empty‑hash inserts, float type ...
- Resolved Active Model alias_attribute regression, set default inspect attributes to :all, added TimeZoneConverter equality method, and ensured ActiveRecord::Encryption config is ready before use.