rails/activemodel/CHANGELOG.md

• Fix a bug where type casting of string to Time and DateTime doesn't calculate minus minute value in TZ offset correctly.

  Akira Matsuda

• Port the type_for_attribute method to Active Model. Classes that include ActiveModel::Attributes will now provide this method. This method behaves the same for Active Model as it does for Active Record.

  class MyModel
    include ActiveModel::Attributes
  
    attribute :my_attribute, :integer
  end
  
  MyModel.type_for_attribute(:my_attribute) # => #<ActiveModel::Type::Integer ...>
  

  Jonathan Hefner

Please check 7-1-stable for previous changes.