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Rails 4.2.0 (December 20, 2014)

  • Passwords with spaces only allowed in ActiveModel::SecurePassword.

    Presence validation can be used to restore old behavior.

    Yevhene Shemet

  • Validate options passed to ActiveModel::Validations.validate.

    Preventing, in many cases, the simple mistake of using validate instead of validates.

    Sonny Michaud

  • Deprecate reset_#{attribute} in favor of restore_#{attribute}.

    These methods may cause confusion with the reset_changes, which has different behaviour.

    Rafael Mendonça França

  • Deprecate ActiveModel::Dirty#reset_changes in favor of #clear_changes_information.

    Method's name is causing confusion with the reset_#{attribute} methods. While reset_name sets the value of the name attribute to previous value reset_changes only discards the changes.

    Rafael Mendonça França

  • Added restore_attributes method to ActiveModel::Dirty API which restores the value of changed attributes to previous value.

    Igor G.

  • Allow proc and symbol as values for only_integer of NumericalityValidator

    Robin Mehner

  • has_secure_password now verifies that the given password is less than 72 characters if validations are enabled.

    Fixes #14591.

    Akshay Vishnoi

  • Remove deprecated Validator#setup without replacement.

    See #10716.

    Kuldeep Aggarwal

  • Add plural and singular form for length validator's default messages.

    Abd ar-Rahman Hamid

  • Introduce validate as an alias for valid?.

    This is more intuitive when you want to run validations but don't care about the return value.

    Henrik Nyh

Please check 4-1-stable for previous changes.