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rails--rails/activesupport/CHANGELOG.md

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  • Make the order of Hash#reverse_merge! consistent with HashWithIndifferentAccess.

    Erol Fornoles

  • Add freeze_time helper which freezes time to Time.now in tests.

    Prathamesh Sonpatki

  • Default ActiveSupport::MessageEncryptor to use AES 256 GCM encryption.

    On for new Rails 5.2 apps. Upgrading apps can find the config as a new framework default.

    Assain Jaleel

  • Cache: write_multi

    Rails.cache.write_multi foo: 'bar', baz: 'qux'
    

    Plus faster fetch_multi with stores that implement write_multi_entries. Keys that aren't found may be written to the cache store in one shot instead of separate writes.

    The default implementation simply calls write_entry for each entry. Stores may override if they're capable of one-shot bulk writes, like Redis MSET.

    Jeremy Daer

  • Add default option to module and class attribute accessors.

    mattr_accessor :settings, default: {}
    

    Works for mattr_reader, mattr_writer, cattr_accessor, cattr_reader, and cattr_writer as well.

    Genadi Samokovarov

  • Add Date#prev_occurring and Date#next_occurring to return specified next/previous occurring day of week.

    Shota Iguchi

  • Add default option to class_attribute.

    Before:

    class_attribute :settings
    self.settings = {}
    

    Now:

    class_attribute :settings, default: {}
    

    DHH

  • #singularize and #pluralize now respect uncountables for the specified locale.

    Eilis Hamilton

  • Add ActiveSupport::CurrentAttributes to provide a thread-isolated attributes singleton. Primary use case is keeping all the per-request attributes easily available to the whole system.

    DHH

  • Fix implicit coercion calculations with scalars and durations

    Previously calculations where the scalar is first would be converted to a duration of seconds but this causes issues with dates being converted to times, e.g:

    Time.zone = "Beijing"           # => Asia/Shanghai
    date = Date.civil(2017, 5, 20)  # => Mon, 20 May 2017
    2 * 1.day                       # => 172800 seconds
    date + 2 * 1.day                # => Mon, 22 May 2017 00:00:00 CST +08:00
    

    Now the ActiveSupport::Duration::Scalar calculation methods will try to maintain the part structure of the duration where possible, e.g:

    Time.zone = "Beijing"           # => Asia/Shanghai
    date = Date.civil(2017, 5, 20)  # => Mon, 20 May 2017
    2 * 1.day                       # => 2 days
    date + 2 * 1.day                # => Mon, 22 May 2017
    

    Fixes #29160, #28970.

    Andrew White

  • Add support for versioned cache entries. This enables the cache stores to recycle cache keys, greatly saving on storage in cases with frequent churn. Works together with the separation of #cache_key and #cache_version in Active Record and its use in Action Pack's fragment caching.

    DHH

  • Pass gem name and deprecation horizon to deprecation notifications.

    Willem van Bergen

  • Add support for :offset and :zone to ActiveSupport::TimeWithZone#change

    Andrew White

  • Add support for :offset to Time#change

    Fixes #28723.

    Andrew White

  • Add fetch_values for HashWithIndifferentAccess

    The method was originally added to Hash in Ruby 2.3.0.

    Josh Pencheon

Please check 5-1-stable for previous changes.