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+* Add `ActiveModel::Dirty#[attr_name]_previously_changed?` and
+ `ActiveModel::Dirty#[attr_name]_previous_change` to improve access
+ to recorded changes after the model has been saved.
+
+ It makes the dirty-attributes query methods consistent before and after
+ saving.
+
+ *Fernando Tapia Rico*
+
* Deprecate the `:tokenizer` option for `validates_length_of`, in favor of
plain Ruby.