rails--rails/activemodel/CHANGELOG.md

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## Rails 7.0.0.alpha2 (September 15, 2021) ##
* No changes.
## Rails 7.0.0.alpha1 (September 15, 2021) ##
* Introduce `ActiveModel::API`.
Make `ActiveModel::API` the minimum API to talk with Action Pack and Action View.
This will allow adding more functionality to `ActiveModel::Model`.
*Petrik de Heus*, *Nathaniel Watts*
* Fix dirty check for Float::NaN and BigDecimal::NaN.
Float::NaN and BigDecimal::NaN in Ruby are [special values](https://bugs.ruby-lang.org/issues/1720)
and can't be compared with `==`.
*Marcelo Lauxen*
* Fix `to_json` for `ActiveModel::Dirty` object.
Exclude `mutations_from_database` attribute from json as it lead to recursion.
*Anil Maurya*
* Add `ActiveModel::AttributeSet#values_for_database`.
Returns attributes with values for assignment to the database.
*Chris Salzberg*
* Fix delegation in ActiveModel::Type::Registry#lookup and ActiveModel::Type.lookup.
Passing a last positional argument `{}` would be incorrectly considered as keyword argument.
*Benoit Daloze*
* Cache and re-use generated attribute methods.
Generated methods with identical implementations will now share their instruction sequences
leading to reduced memory retention, and slightly faster load time.
*Jean Boussier*
* Add `in: range` parameter to `numericality` validator.
*Michal Papis*
* Add `locale` argument to `ActiveModel::Name#initialize` to be used to generate the `singular`,
`plural`, `route_key` and `singular_route_key` values.
*Lukas Pokorny*
* Make ActiveModel::Errors#inspect slimmer for readability
*lulalala*
Please check [6-1-stable](https://github.com/rails/rails/blob/6-1-stable/activemodel/CHANGELOG.md) for previous changes.