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rails--rails/activemodel/CHANGELOG.md

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* Raise FrozenError when trying to write attributes that aren't backed by the database on an object that is frozen:
class Animal
include ActiveModel::Attributes
attribute :age
end
animal = Animal.new
animal.freeze
animal.age = 25 # => FrozenError, "can't modify a frozen Animal"
* Add *_previously_was attribute methods when dirty tracking. Example:
pirate.update(catchphrase: "Ahoy!")
pirate.previous_changes["catchphrase"] # => ["Thar She Blows!", "Ahoy!"]
pirate.catchphrase_previously_was # => "Thar She Blows!"
*DHH*
2019-04-24 15:57:14 -04:00
Please check [6-0-stable](https://github.com/rails/rails/blob/6-0-stable/activemodel/CHANGELOG.md) for previous changes.