Rails 7 adds accepts_nested_attributes_for support for delegated_type
With Rails 7, accepts_nested_attributes_for can be used for delegated_typeRails 7 adds encryption to ActiveRecord
Rails 7 supports application-level encryption. We can declare which attributes should be encrypted and, ActiveRecord will encrypt and decrypt when necessary.Rails 7 allows constructors on has_one :through associations
Rails 7 allows build_association and create_association on has_one :through associations.Rails 7 adds invert_where method to ActiveRecord
Rails 7 adds invert_where method that will invert all scope conditions.