-* 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:

-

- ```ruby

- 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](https://github.com/fxn/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 `ActiveSuppport::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 `ActiveSuppport::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](https://github.com/rails/rails/blob/5-2-stable/activesupport/CHANGELOG.md) for previous changes.

- def initialize(deprecation_horizon = "6.1", gem_name = "Rails")

- MINOR = 0

- PRE = "beta3"