Ruby on Rails Files

Active Support

• Fix Enumerable#sole to return the full tuple instead of just the first element of the tuple.

  Olivier Bellone

• Fix parallel tests hanging when worker processes die abruptly.

  Previously, if a worker process was killed (e.g., OOM killed, kill -9) during parallel test execution, the test suite would hang forever waiting for the dead worker.

  Joshua Young

• Fix NameError when class_attribute is defined on instance singleton classes.

  Previously, calling class_attribute on an instance's singleton class would raise a NameError when accessing the attribute through the instance.

  ruby object = MyClass.new object.singleton_class.class_attribute :foo, default: "bar" object.foo # previously raised NameError, now returns "bar"

  Joshua Young

Active Model

• No changes.

Active Record

• Fix SQLite3 data loss during table alterations with CASCADE foreign keys.

  When altering a table in SQLite3 that is referenced by child tables with ON DELETE CASCADE foreign keys, ActiveRecord would silently delete all data from the child tables. This occurred because SQLite requires table recreation for schema changes, and during this process the original table is temporarily dropped, triggering CASCADE deletes on child tables.

  The root cause was incorrect ordering of operations. The original code wrapped disable_referential_integrity inside a transaction, but PRAGMA foreign_keys cannot be modified inside a transaction in SQLite - attempting to do so simply has no effect. This meant foreign keys remained enabled during table recreation, causing CASCADE deletes to fire.

  The fix reverses the order to follow the official SQLite 12-step ALTER TABLE procedure: disable_referential_integrity now wraps the transaction instead of being wrapped by it. This ensures foreign keys are properly disabled before the transaction starts and re-enabled after it commits, preventing CASCADE deletes while maintaining data integrity through atomic transactions.

  Ruy Rocha

• Add support for bound SQL literals in CTEs.

  Nicolas Bachschmidt

• Fix belongs_to associations not to clear the entire composite primary key.

  When clearing a belongs_to association that references a model with composite primary key, only the optional part of the key should be cleared.

  zzak

• Fix invalid records being autosaved when distantly associated records are marked for deletion.

  Ian Terrell, axlekb AB

Action View

• Restore add_default_name_and_id method.

  Hartley McGuire

Action Pack

• Submit test requests using as: :html with Content-Type: x-www-form-urlencoded

  Sean Doyle

Active Job

• No changes.

Action Mailer

• No changes.

Action Cable

• No changes.

Active Storage

• No changes.

Action Mailbox

• No changes.

Action Text

• No changes.

Railties

• No changes.

Guides

• No changes.