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Rails 6.0.4.1 (August 19, 2021)

  • No changes.

Rails 6.0.4 (June 15, 2021)

  • Fixed issue in ActiveSupport::Cache::RedisCacheStore not passing options to read_multi causing fetch_multi to not work properly.

    Rajesh Sharma

  • with_options copies its options hash again to avoid leaking mutations.

    Fixes #39343.

    Eugene Kenny

Rails 6.0.3.7 (May 05, 2021)

  • No changes.

Rails 6.0.3.6 (March 26, 2021)

  • No changes.

Rails 6.0.3.5 (February 10, 2021)

  • No changes.

Rails 6.0.3.4 (October 07, 2020)

  • No changes.

Rails 6.0.3.3 (September 09, 2020)

  • No changes.

Rails 6.0.3.2 (June 17, 2020)

  • No changes.

Rails 6.0.3.1 (May 18, 2020)

  • [CVE-2020-8165] Deprecate Marshal.load on raw cache read in RedisCacheStore

  • [CVE-2020-8165] Avoid Marshal.load on raw cache value in MemCacheStore

Rails 6.0.3 (May 06, 2020)

  • Array#to_sentence no longer returns a frozen string.

    Before:

    ['one', 'two'].to_sentence.frozen?
    # => true
    

    After:

    ['one', 'two'].to_sentence.frozen?
    # => false
    

    Nicolas Dular

  • Update ActiveSupport::Messages::Metadata#fresh? to work for cookies with expiry set when ActiveSupport.parse_json_times = true.

    Christian Gregg

Rails 6.0.2.2 (March 19, 2020)

  • No changes.

Rails 6.0.2.1 (December 18, 2019)

  • No changes.

Rails 6.0.2 (December 13, 2019)

  • Eager load translations during initialization.

    Diego Plentz

  • Use per-thread CPU time clock on ActiveSupport::Notifications.

    George Claghorn

Rails 6.0.1 (November 5, 2019)

  • ActiveSupport::SafeBuffer supports Enumerator methods.

    Shugo Maeda

  • The Redis cache store fails gracefully when the server returns a "max number of clients reached" error.

    Brandon Medenwald

  • Fixed that mutating a value returned by a memory cache store would unexpectedly change the cached value.

    Jonathan Hyman

  • The default inflectors in zeitwerk mode support overrides:

    # config/initializers/zeitwerk.rb
    Rails.autoloaders.each do |autoloader|
      autoloader.inflector.inflect(
        "html_parser" => "HTMLParser",
        "ssl_error"   => "SSLError"
      )
    end

    That way, you can tweak how individual basenames are inflected without touching Active Support inflection rules, which are global. These inflectors fallback to String#camelize, so existing inflection rules are still taken into account for non-overridden basenames.

    Please, check the autoloading guide for zeitwerk mode if you prefer not to depend on String#camelize at all.

    Xavier Noria

  • Improve Range#===, Range#include?, and Range#cover? to work with beginless (startless) and endless range targets.

    Allen Hsu, Andrew Hodgkinson

  • Don't use Process#clock_gettime(CLOCK_THREAD_CPUTIME_ID) on Solaris.

    Iain Beeston

Rails 6.0.0 (August 16, 2019)

  • Let require_dependency in zeitwerk mode look the autoload paths up for better backwards compatibility.

    Xavier Noria

  • Let require_dependency in zeitwerk mode support arguments that respond to to_path for better backwards compatibility.

    Xavier Noria

  • Make ActiveSupport::Logger Fiber-safe. Fixes #36752.

    Use Fiber.current.__id__ in ActiveSupport::Logger#local_level= in order to make log level local to Ruby Fibers in addition to Threads.

    Example:

    logger = ActiveSupport::Logger.new(STDOUT)
    logger.level = 1
    p "Main is debug? #{logger.debug?}"
    
    Fiber.new {
      logger.local_level = 0
      p "Thread is debug? #{logger.debug?}"
    }.resume
    
    p "Main is debug? #{logger.debug?}"
    

    Before:

    Main is debug? false
    Thread is debug? true
    Main is debug? true
    

    After:

    Main is debug? false
    Thread is debug? true
    Main is debug? false
    

    Alexander Varnin

  • Do not delegate missing marshal_dump and _dump methods via the delegate_missing_to extension. This avoids unintentionally adding instance variables when calling Marshal.dump(object), should the delegation target of object be a method which would otherwise add them. Fixes #36522.

    Aaron Lipman

Rails 6.0.0.rc2 (July 22, 2019)

  • truncate would return the original string if it was too short to be truncated and a frozen string if it were long enough to be truncated. Now truncate will consistently return an unfrozen string regardless. This behavior is consistent with gsub and strip.

    Before:

    'foobar'.truncate(5).frozen?
    # => true
    'foobar'.truncate(6).frozen?
    # => false
    

    After:

    'foobar'.truncate(5).frozen?
    # => false
    'foobar'.truncate(6).frozen?
    # => false
    

    Jordan Thomas

Rails 6.0.0.rc1 (April 24, 2019)

  • Speed improvements to Hash.except and HashWithIndifferentAccess#except.

    These methods now unset the default/default_proc on the returned Hash, compatible with Ruby 3.0’s native implementation.

    Timo Schilling

  • Introduce ActiveSupport::ActionableError.

    Actionable errors let's you dispatch actions from Rails' error pages. This can help you save time if you have a clear action for the resolution of common development errors.

    The de-facto example are pending migrations. Every time pending migrations are found, a middleware raises an error. With actionable errors, you can run the migrations right from the error page. Other examples include Rails plugins that need to run a rake task to setup themselves. They can now raise actionable errors to run the setup straight from the error pages.

    Here is how to define an actionable error:

    class PendingMigrationError < MigrationError #:nodoc:
      include ActiveSupport::ActionableError
    
      action "Run pending migrations" do
        ActiveRecord::Tasks::DatabaseTasks.migrate
      end
    end

    To make an error actionable, include the ActiveSupport::ActionableError module and invoke the action class macro to define the action. An action needs a name and a procedure to execute. The name is shown as the name of a button on the error pages. Once clicked, it will invoke the given procedure.

    Vipul A M, Yao Jie, Genadi Samokovarov

  • Preserve html_safe? status on ActiveSupport::SafeBuffer#*.

    Before:

    ("<br />".html_safe * 2).html_safe? #=> nil
    

    After:

    ("<br />".html_safe * 2).html_safe? #=> true
    

    Ryo Nakamura

  • Calling test methods with with_info_handler method to allow minitest-hooks plugin to work.

    Mauri Mustonen

  • The Zeitwerk compatibility interface for ActiveSupport::Dependencies no longer implements autoloaded_constants or autoloaded? (undocumented, anyway). Experience shows introspection does not have many use cases, and troubleshooting is done by logging. With this design trade-off we are able to use even less memory in all environments.

    Xavier Noria

  • Depends on Zeitwerk 2, which stores less metadata if reloading is disabled and hence uses less memory when config.cache_classes is true, a standard setup in production.

    Xavier Noria

  • In :zeitwerk mode, eager load directories in engines and applications only if present in their respective config.eager_load_paths.

    A common use case for this is adding lib to config.autoload_paths, but not to config.eager_load_paths. In that configuration, for example, files in the lib directory should not be eager loaded.

    Xavier Noria

  • Fix bug in Range comparisons when comparing to an excluded-end Range

    Before:

    (1..10).cover?(1...11) # => false
    

    After:

    (1..10).cover?(1...11) # => true
    

    With the same change for Range#include? and Range#===.

    Owen Stephens

  • Use weak references in descendants tracker to allow anonymous subclasses to be garbage collected.

    Edgars Beigarts

  • Update ActiveSupport::Notifications::Instrumenter#instrument to make passing a block optional. This will let users use ActiveSupport::Notifications messaging features outside of instrumentation.

    Ali Ibrahim

  • Fix Time#advance to work with dates before 1001-03-07

    Before:

    Time.utc(1001, 3, 6).advance(years: -1) # => 1000-03-05 00:00:00 UTC
    

    After

    Time.utc(1001, 3, 6).advance(years: -1) # => 1000-03-06 00:00:00 UTC
    

    Note that this doesn't affect DateTime#advance as that doesn't use a proleptic calendar.

    Andrew White

  • In Zeitwerk mode, engines are now managed by the main autoloader. Engines may reference application constants, if the application is reloaded and we do not reload engines, they won't use the reloaded application code.

    Xavier Noria

  • Add support for supplying locale to transliterate and parameterize.

    I18n.backend.store_translations(:de, i18n: { transliterate: { rule: { "ü" => "ue" } } })
    
    ActiveSupport::Inflector.transliterate("ü", locale: :de) # => "ue"
    "Fünf autos".parameterize(locale: :de) # => "fuenf-autos"
    ActiveSupport::Inflector.parameterize("Fünf autos", locale: :de) # => "fuenf-autos"
    

    Kaan Ozkan, Sharang Dashputre

  • Allow Array#excluding and Enumerable#excluding to deal with a passed array gracefully.

    [ 1, 2, 3, 4, 5 ].excluding([4, 5]) # => [ 1, 2, 3 ]
    

    DHH

  • Renamed Array#without and Enumerable#without to Array#excluding and Enumerable#excluding, to create parity with Array#including and Enumerable#including. Retained the old names as aliases.

    DHH

  • Added Array#including and Enumerable#including to conveniently enlarge a collection with more members using a method rather than an operator:

    [ 1, 2, 3 ].including(4, 5) # => [ 1, 2, 3, 4, 5 ]
    post.authors.including(Current.person) # => All the authors plus the current person!
    

    DHH

Rails 6.0.0.beta3 (March 11, 2019)

  • No changes.

Rails 6.0.0.beta2 (February 25, 2019)

  • New autoloading based on Zeitwerk.

    Xavier Noria

  • Revise ActiveSupport::Notifications.unsubscribe to correctly handle Regex or other multiple-pattern subscribers.

    Zach Kemp

  • Add before_reset callback to CurrentAttributes and define after_reset as an alias of resets for symmetry.

    Rosa Gutierrez

  • Remove the Kernel#` override that suppresses ENOENT and accidentally returns nil on Unix systems.

    Akinori Musha

  • Add ActiveSupport::HashWithIndifferentAccess#assoc.

    assoc can now be called with either a string or a symbol.

    Stefan Schüßler

  • Add Hash#deep_transform_values, and Hash#deep_transform_values!.

    Guillermo Iguaran

Rails 6.0.0.beta1 (January 18, 2019)

  • Remove deprecated Module#reachable? method.

    Rafael Mendonça França

  • Remove deprecated #acronym_regex method from Inflections.

    Rafael Mendonça França

  • Fix String#safe_constantize throwing a LoadError for incorrectly cased constant references.

    Keenan Brock

  • Preserve key order passed to ActiveSupport::CacheStore#fetch_multi.

    fetch_multi(*names) now returns its results in the same order as the *names requested, rather than returning cache hits followed by cache misses.

    Gannon McGibbon

  • If the same block is included multiple times for a Concern, an exception is no longer raised.

    Mark J. Titorenko, Vlad Bokov

  • Fix bug where #to_options for ActiveSupport::HashWithIndifferentAccess would not act as alias for #symbolize_keys.

    Nick Weiland

  • Improve the logic that detects non-autoloaded constants.

    Jan Habermann, Xavier Noria

  • Deprecate ActiveSupport::Multibyte::Unicode#pack_graphemes(array) and ActiveSupport::Multibyte::Unicode#unpack_graphemes(string) in favor of array.flatten.pack("U*") and string.scan(/\X/).map(&:codepoints), respectively.

    Francesco Rodríguez

  • Deprecate ActiveSupport::Multibyte::Chars.consumes? in favor of String#is_utf8?.

    Francesco Rodríguez

  • Fix duration being rounded to a full second.

      time = DateTime.parse("2018-1-1")
      time += 0.51.seconds
    

    Will now correctly add 0.51 second and not 1 full second.

    Edouard Chin

  • Deprecate ActiveSupport::Multibyte::Unicode#normalize and ActiveSupport::Multibyte::Chars#normalize in favor of String#unicode_normalize

    Francesco Rodríguez

  • Deprecate ActiveSupport::Multibyte::Unicode#downcase/upcase/swapcase in favor of String#downcase/upcase/swapcase.

    Francesco Rodríguez

  • Add ActiveSupport::ParameterFilter.

    Yoshiyuki Kinjo

  • Rename Module#parent, Module#parents, and Module#parent_name to module_parent, module_parents, and module_parent_name.

    Gannon McGibbon

  • Deprecate the use of LoggerSilence in favor of ActiveSupport::LoggerSilence

    Edouard Chin

  • Deprecate using negative limits in String#first and String#last.

    Gannon McGibbon, Eric Turner

  • Fix bug where #without for ActiveSupport::HashWithIndifferentAccess would fail with symbol arguments

    Abraham Chan

  • Treat #delete_prefix, #delete_suffix and #unicode_normalize results as non-html_safe. Ensure safety of arguments for #insert, #[]= and #replace calls on html_safe Strings.

    Janosch Müller

  • Changed ActiveSupport::TaggedLogging.new to return a new logger instance instead of mutating the one received as parameter.

    Thierry Joyal

  • Define unfreeze_time as an alias of travel_back in ActiveSupport::Testing::TimeHelpers.

    The alias is provided for symmetry with freeze_time.

    Ryan Davidson

  • Add support for tracing constant autoloads. Just throw

    ActiveSupport::Dependencies.logger = Rails.logger
    ActiveSupport::Dependencies.verbose = true
    

    in an initializer.

    Xavier Noria

  • Maintain html_safe? on html_safe strings when sliced.

    string = "<div>test</div>".html_safe
    string[-1..1].html_safe? # => true
    

    Elom Gomez, Yumin Wong

  • Add Array#extract!.

    The method removes and returns the elements for which the block returns a true value. If no block is given, an Enumerator is returned instead.

    numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
    odd_numbers = numbers.extract! { |number| number.odd? } # => [1, 3, 5, 7, 9]
    numbers # => [0, 2, 4, 6, 8]
    

    bogdanvlviv

  • Support not to cache nil for ActiveSupport::Cache#fetch.

    cache.fetch('bar', skip_nil: true) { nil }
    cache.exist?('bar') # => false
    

    Martin Hong

  • Add "event object" support to the notification system. Before this change, end users were forced to create hand made artisanal event objects on their own, like this:

    ActiveSupport::Notifications.subscribe('wait') do |*args|
      @event = ActiveSupport::Notifications::Event.new(*args)
    end
    
    ActiveSupport::Notifications.instrument('wait') do
      sleep 1
    end
    
    @event.duration # => 1000.138
    

    After this change, if the block passed to subscribe only takes one parameter, the framework will yield an event object to the block. Now end users are no longer required to make their own:

    ActiveSupport::Notifications.subscribe('wait') do |event|
      @event = event
    end
    
    ActiveSupport::Notifications.instrument('wait') do
      sleep 1
    end
    
    p @event.allocations # => 7
    p @event.cpu_time    # => 0.256
    p @event.idle_time   # => 1003.2399
    

    Now you can enjoy event objects without making them yourself. Neat!

    Aaron "t.lo" Patterson

  • Add cpu_time, idle_time, and allocations to Event.

    Eileen M. Uchitelle, Aaron Patterson

  • RedisCacheStore: support key expiry in increment/decrement.

    Pass :expires_in to #increment and #decrement to set a Redis EXPIRE on the key.

    If the key is already set to expire, RedisCacheStore won't extend its expiry.

    Rails.cache.increment("some_key", 1, expires_in: 2.minutes)
    

    Jason Lee

  • Allow Range#=== and Range#cover? on Range.

    Range#cover? can now accept a range argument like Range#include? and Range#===. Range#=== works correctly on Ruby 2.6. Range#include? is moved into a new file, with these two methods.

    Requiring active_support/core_ext/range/include_range is now deprecated. Use require "active_support/core_ext/range/compare_range" instead.

    utilum

  • Add index_with to Enumerable.

    Allows creating a hash from an enumerable with the value from a passed block or a default argument.

    %i( title body ).index_with { |attr| post.public_send(attr) }
    # => { title: "hey", body: "what's up?" }
    
    %i( title body ).index_with(nil)
    # => { title: nil, body: nil }
    

    Closely linked with index_by, which creates a hash where the keys are extracted from a block.

    Kasper Timm Hansen

  • Fix bug where ActiveSupport::TimeZone.all would fail when tzinfo data for any timezone defined in ActiveSupport::TimeZone::MAPPING is missing.

    Dominik Sander

  • Redis cache store: delete_matched no longer blocks the Redis server. (Switches from evaled Lua to a batched SCAN + DEL loop.)

    Gleb Mazovetskiy

  • Fix bug where ActiveSupport::Cache will massively inflate the storage size when compression is enabled (which is true by default). This patch does not attempt to repair existing data: please manually flush the cache to clear out the problematic entries.

    Godfrey Chan

  • Fix bug where URI.unescape would fail with mixed Unicode/escaped character input:

    URI.unescape("\xe3\x83\x90")  # => "バ"
    URI.unescape("%E3%83%90")  # => "バ"
    URI.unescape("\xe3\x83\x90%E3%83%90")  # => Encoding::CompatibilityError
    

    Ashe Connor, Aaron Patterson

  • Add before? and after? methods to Date, DateTime, Time, and TimeWithZone.

    Nick Holden

  • ActiveSupport::Inflector#ordinal and ActiveSupport::Inflector#ordinalize now support translations through I18n.

    # locale/fr.rb
    
    {
      fr: {
        number: {
          nth: {
            ordinals: lambda do |_key, number:, **_options|
              if number.to_i.abs == 1
                'er'
              else
                'e'
              end
            end,
    
            ordinalized: lambda do |_key, number:, **_options|
              "#{number}#{ActiveSupport::Inflector.ordinal(number)}"
            end
          }
        }
      }
    }
    

    Christian Blais

  • Add :private option to ActiveSupport's Module#delegate in order to delegate methods as private:

    class User < ActiveRecord::Base
      has_one :profile
      delegate :date_of_birth, to: :profile, private: true
    
      def age
        Date.today.year - date_of_birth.year
      end
    end
    
    # User.new.age  # => 29
    # User.new.date_of_birth
    # => NoMethodError: private method `date_of_birth' called for #<User:0x00000008221340>
    

    Tomas Valent

  • String#truncate_bytes to truncate a string to a maximum bytesize without breaking multibyte characters or grapheme clusters like 👩‍👩‍👦‍👦.

    Jeremy Daer

  • String#strip_heredoc preserves frozenness.

    "foo".freeze.strip_heredoc.frozen?  # => true
    

    Fixes that frozen string literals would inadvertently become unfrozen:

    # frozen_string_literal: true
    
    foo = <<-MSG.strip_heredoc
      la la la
    MSG
    
    foo.frozen?  # => false !??
    

    Jeremy Daer

  • Rails 6 requires Ruby 2.5.0 or newer.

    Jeremy Daer, Kasper Timm Hansen

  • Adds parallel testing to Rails.

    Parallelize your test suite with forked processes or threads.

    Eileen M. Uchitelle, Aaron Patterson

Please check 5-2-stable for previous changes.