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Added release notes for Active Support [ci skip]

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Prathamesh Sonpatki 2019-05-01 13:05:40 +05:30
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@ -723,10 +723,196 @@ Please refer to the [Changelog][active-support] for detailed changes.
### Removals
* Remove deprecated `#acronym_regex` method from `Inflections`.
([Commit](https://github.com/rails/rails/commit/0ce67d3cd6d1b7b9576b07fecae3dd5b422a5689))
* Remove deprecated `Module#reachable?` method.
([Commit](https://github.com/rails/rails/commit/6eb1d56a333fd2015610d31793ed6281acd66551))
* Remove `` Kernel#` `` without any replacement.
([Pull Request](https://github.com/rails/rails/pull/31253))
### Deprecations
* Deprecate using negative integer arguments for `String#first` and
`String#last`.
([Pull Request](https://github.com/rails/rails/pull/33058))
* Deprecate `ActiveSupport::Multibyte::Unicode#downcase/upcase/swapcase`
in favor of `String#downcase/upcase/swapcase`.
([Pull Request](https://github.com/rails/rails/pull/34123))
* Deprecate `ActiveSupport::Multibyte::Unicode#normalize`
and `ActiveSuppport::Multibyte::Chars#normalize` in favor of
`String#unicode_normalize`.
([Pull Request](https://github.com/rails/rails/pull/34202))
* Deprecate `ActiveSupport::Multibyte::Chars.consumes?` in favor of
`String#is_utf8?`.
([Pull Request](https://github.com/rails/rails/pull/34215))
* 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.
([Pull Request](https://github.com/rails/rails/pull/34254))
### Notable changes
* Add support for parallel testing.
([Pull Request](https://github.com/rails/rails/pull/31900))
* Make sure that `String#strip_heredoc` preserves frozen-ness of strings.
([Pull Request](https://github.com/rails/rails/pull/32037))
* Add `String#truncate_bytes` to truncate a string to a maximum bytesize
without breaking multibyte characters or grapheme clusters.
([Pull Request](https://github.com/rails/rails/pull/27319))
* Add `private` option to `delegate` method in order to delegate to
private methods. This option accepts `true/false` as the value.
([Pull Request](https://github.com/rails/rails/pull/31944))
* Add support for translations through I18n for `ActiveSupport::Inflector#ordinal`
and `ActiveSupport::Inflector#ordinalize`.
([Pull Request](https://github.com/rails/rails/pull/32168))
* Add `before?` and `after?` methods to `Date`, `DateTime`,
`Time`, and `TimeWithZone`.
([Pull Request](https://github.com/rails/rails/pull/32185))
* Fix bug where `URI.unscape` would fail with mixed Unicode/escaped character
input.
([Pull Request](https://github.com/rails/rails/pull/32183))
* Fix bug where `ActiveSupport::Cache` would massively inflate the storage
size when compression was enabled.
([Pull Request](https://github.com/rails/rails/pull/32539))
* Redis cache store: `delete_matched` no longer blocks the Redis server.
([Pull Request](https://github.com/rails/rails/pull/32614))
* Fix bug where `ActiveSupport::TimeZone.all` would fail when tzinfo data for
any timezone defined in `ActiveSupport::TimeZone::MAPPING` was missing.
([Pull Request](https://github.com/rails/rails/pull/32613))
* Add `Enumerable#index_with` which allows creating a hash from an enumerable
with the value from a passed block or a default argument.
([Pull Request](https://github.com/rails/rails/pull/32523))
* Allow `Range#===` and `Range#cover?` methods to work with `Range` argument.
([Pull Request](https://github.com/rails/rails/pull/32938))
* Support key expiry in `increment/decrement` operations of RedisCacheStore.
([Pull Request](https://github.com/rails/rails/pull/33254))
* Add cpu time, idle time, and allocations features to log subscriber events.
([Pull Request](https://github.com/rails/rails/pull/33449))
* Add support for event object to the Active Support notification system.
([Pull Request](https://github.com/rails/rails/pull/33451))
* Add support for not caching `nil` entries by introducing new option `skip_nil`
for `ActiveSupport::Cache#fetch`.
([Pull Request](https://github.com/rails/rails/pull/25437))
* Add `Array#extract!` method which removes and returns the elements for which
block returns a true value.
([Pull Request](https://github.com/rails/rails/pull/33137))
* Keep an HTML-safe string HTML-safe after slicing.
([Pull Request](https://github.com/rails/rails/pull/33808))
* Add support for tracing constant autoloads via logging.
([Commit](https://github.com/rails/rails/commit/c03bba4f1f03bad7dc034af555b7f2b329cf76f5))
* Define `unfreeze_time` as an alias of `travel_back`.
([Pull Request](https://github.com/rails/rails/pull/33813))
* Change `ActiveSupport::TaggedLogging.new` to return a new logger instance
instead of mutating the one received as argument.
([Pull Request](https://github.com/rails/rails/pull/27792))
* Treat `#delete_prefix`, `#delete_suffix` and `#unicode_normalize` methods
as non HTML-safe methods.
([Pull Request](https://github.com/rails/rails/pull/33990))
* Fix bug where `#without` for `ActiveSupport::HashWithIndifferentAccess`
would fail with symbol arguments.
([Pull Request](https://github.com/rails/rails/pull/34012))
* Rename `Module#parent`, `Module#parents`, and `Module#parent_name` to
`module_parent`, `module_parents`, and `module_parent_name`.
([Pull Request](https://github.com/rails/rails/pull/34051))
* Add `ActiveSupport::ParameterFilter`.
([Pull Request](https://github.com/rails/rails/pull/34039))
* Fix issue where duration was being rounded to a full second when a float
was added to the duration.
([Pull Request](https://github.com/rails/rails/pull/34135))
* Make `#to_options` an alias for `#symbolize_keys` in
`ActiveSupport::HashWithIndifferentAccess`.
([Pull Request](https://github.com/rails/rails/pull/34360))
* Don't raise an exception anymore if the same block is included multiple times
for a Concern.
([Pull Request](https://github.com/rails/rails/pull/34553))
* Preserve key order passed to `ActiveSupport::CacheStore#fetch_multi`.
([Pull Request](https://github.com/rails/rails/pull/34700))
* Fix `String#safe_constantize` to not throw a `LoadError` for incorrectly
cased constant references.
([Pull Request](https://github.com/rails/rails/pull/34892))
* Add `Hash#deep_transform_values` and `Hash#deep_transform_values!`.
([Commit](https://github.com/rails/rails/commit/b8dc06b8fdc16874160f61dcf58743fcc10e57db))
* Add `ActiveSupport::HashWithIndifferentAccess#assoc`.
([Pull Request](https://github.com/rails/rails/pull/35080))
* Add `before_reset` callback to `CurrentAttributes` and define
`after_reset` as an alias of `resets` for symmetry.
([Pull Request](https://github.com/rails/rails/pull/35063))
* Revise `ActiveSupport::Notifications.unsubscribe` to correctly
handle Regex or other multiple-pattern subscribers.
([Pull Request](https://github.com/rails/rails/pull/32861))
* Add new autoloading mechanism using Zeitwerk.
([Commit](https://github.com/rails/rails/commit/e53430fa9af239e21e11548499d814f540d421e5))
* Add `Array#including` and `Enumerable#including` to conveniently enlarge
a collection.
([Commit](https://github.com/rails/rails/commit/bfaa3091c3c32b5980a614ef0f7b39cbf83f6db3))
* Rename `Array#without` and `Enumerable#without` to `Array#excluding`
and `Enumerable#excluding`. Old method names are retained as aliases.
([Commit](https://github.com/rails/rails/commit/bfaa3091c3c32b5980a614ef0f7b39cbf83f6db3))
* Add support for supplying `locale` to `transliterate` and `parameterize`.
([Pull Request](https://github.com/rails/rails/pull/35571))
* Fix `Time#advance` to work with dates before 1001-03-07.
([Pull Request](https://github.com/rails/rails/pull/35659))
* Update `ActiveSupport::Notifications::Instrumenter#instrument` to allow
not passing block.
([Pull Request](https://github.com/rails/rails/pull/35705))
* Use weak references in descendants tracker to allow anonymous subclasses to
be garbage collected.
([Pull Request](https://github.com/rails/rails/pull/31442))
* Calling test methods with `with_info_handler` method to allow minitest-hooks
plugin to work.
([Commit](https://github.com/rails/rails/commit/758ba117a008b6ea2d3b92c53b6a7a8d7ccbca69))
* Preserve `html_safe?` status on `ActiveSupport::SafeBuffer#*`.
([Pull Request](https://github.com/rails/rails/pull/36012))
Active Job
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