CHANGELOG.md

• Support RETURNING clause for MariaDB

  fatkodima, Nikolay Kondratyev

• The SQLite3 adapter now implements the supports_deferrable_constraints? contract

  Allows foreign keys to be deferred by adding the :deferrable key to the foreign_key options.

  add_reference :person, :alias, foreign_key: { deferrable: :deferred }
  add_reference :alias, :person, foreign_key: { deferrable: :deferred }

  Stephen Margheim

• Add set_constraints helper for PostgreSQL

  Post.create!(user_id: -1) # => ActiveRecord::InvalidForeignKey
  
  Post.transaction do
    Post.connection.set_constraints(:deferred)
    p = Post.create!(user_id: -1)
    u = User.create!
    p.user = u
    p.save!
  end

  Cody Cutrer

• Include ActiveModel::API in ActiveRecord::Base

  Sean Doyle

• Ensure #signed_id outputs url_safe strings.

  Jason Meller

Please check 7-1-stable for previous changes.