CHANGELOG.md in activesupport-3.2.22.5 vs CHANGELOG.md in activesupport-4.0.0.beta1

@@ -1,131 +1,236 @@
-## Rails 3.2.22 (Jun 16, 2015) ##
+## Rails 4.0.0.beta1 (February 25, 2013) ##
 
-*   Fix denial of service vulnerability in the XML processing.
+*   Prevent `DateTime#change` from truncating the second fraction, when seconds
+    do not need to be changed.
 
-    CVE-2015-3227.
+    *Chris Baynes*
 
-    *Aaron Patterson*
+*   Added `ActiveSupport::TimeWithZone#to_r` for `Time#at` compatibility.
 
+    Before this change:
 
-## Rails 3.2.19 (Jul 2, 2014) ##
+        Time.zone = 'Tokyo'
+        time = Time.zone.now
+        time == Time.at(time) # => false
 
-*   Make sure Active Support configurations are applied correctly.
+    After the change:
 
-    Before this change configuration set using `config.active_support`
-    would not be set.
+        Time.zone = 'Tokyo'
+        time = Time.zone.now
+        time == Time.at(time) # => true
 
-    *Rafael Mendonça França*
+    *stopdropandrew*
 
+*   `ActiveSupport::NumberHelper#number_to_human` returns the number unaltered when
+    the given units hash does not contain the needed key, e.g. when the number provided
+    is less than the largest key provided.
+    Fixes #9269.
 
-## Rails 3.2.18 (May 6, 2014) ##
+    Examples:
 
-* No changes.
+        number_to_human(123, units: {}) # => 123
+        number_to_human(123, units: { thousand: 'k' }) # => 123
 
+    *Michael Hoffman*
 
-## Rails 3.2.17 (Feb 18, 2014) ##
+*   Added `beginning_of_minute` support to core ext calculations for `Time` and `DateTime`.
 
-* No changes.
+    *Gagan Awhad*
 
+*   Add `:nsec` date format.
 
-## Rails 3.2.16 (Dec 3, 2013) ##
+    *Jamie Gaskins*
 
-* No changes.
+*   `ActiveSupport::Gzip.compress` allows two optional arguments for compression
+    level and strategy.
 
+    *Beyond*
 
-## Rails 3.2.15 (Oct 16, 2013) ##
+*   Modify `TimeWithZone#as_json` to include 3 decimal places of sub-second accuracy
+    by default, which is optional as per the ISO8601 spec, but extremely useful. Also
+    the default behaviour of `Date#toJSON()` in recent versions of Chrome, Safari and
+    Firefox.
 
-*   Fix ActiveSupport::Cache::FileStore#cleanup to no longer rely on missing each_key method.
+    *James Harton*
 
-    *Murray Steele*
+*   Improve `String#squish` to handle Unicode whitespace. *Antoine Lyset*
 
-*   Add respond_to_missing? for TaggedLogging which is best practice when overriding method_missing. This permits
-    wrapping TaggedLogging by another log abstraction such as em-logger.
+*   Standardise on `to_time` returning an instance of `Time` in the local system timezone
+    across `String`, `Time`, `Date`, `DateTime` and `ActiveSupport::TimeWithZone`.
 
-    *Wolfram Arnold*
+    *Andrew White*
 
+*   Extract `ActiveSupport::Testing::Performance` into https://github.com/rails/rails-perftest
+    You can add the gem to your `Gemfile` to keep using performance tests.
 
-## Rails 3.2.14 (Jul 22, 2013) ##
+        gem 'rails-perftest'
 
-*   Make `Time.at_with_coercion` retain the second fraction and return local time.
+    *Yves Senn*
 
-    Fixes #11350
+*   `Hash.from_xml` raises when it encounters `type="symbol"` or `type="yaml"`.
+    Use `Hash.from_trusted_xml` to parse this XML.
 
-    *Neer Friedman*, *Andrew White*
+    CVE-2013-0156
 
-*   Fix `ActiveSupport::TaggedLogging` incorrectly providing program name the same as log message
-    even when block is not provided.
+    *Jeremy Kemper*
 
-    *Carson Reinke*
+*   Deprecate `assert_present` and `assert_blank` in favor of
+    `assert object.blank?` and `assert object.present?`
 
-*   Override `Time.at` to support the passing of Time-like values when called with a single argument.
+    *Yves Senn*
 
-    *Andrew White*
+*   Change `String#to_date` to use `Date.parse`. This gives more consistent error
+    messages and allows the use of partial dates.
 
-*   Revert the changes on unicode character encoding from `ActiveSupport::JSON.encode`.
-    This was causing a regression where the resulting string is always returning UTF-8.
-    Also it changes the behavior of this method on a stable release.
-    Fixes #9498.
+        "gibberish".to_date => Argument Error: invalid date
+        "3rd Feb".to_date => Sun, 03 Feb 2013
 
-    *Rafael Mendonça França*
+    *Kelly Stannard*
 
-*   Fix `ActiveSupport::TimeZone.parse` when time is at a local DST jump.
-    Fixes #9678.
+*   It's now possible to compare `Date`, `DateTime`, `Time` and `TimeWithZone`
+    with `Float::INFINITY`. This allows to create date/time ranges with one infinite bound.
+    Example:
 
-    *Andrew White*
+        range = Range.new(Date.today, Float::INFINITY)
 
+    Also it's possible to check inclusion of date/time in range with conversion.
 
-## Rails 3.2.13 (Mar 18, 2013) ##
+        range.include?(Time.now + 1.year)     # => true
+        range.include?(DateTime.now + 1.year) # => true
 
-*   Fix DateTime comparison with DateTime::Infinity object.
+    *Alexander Grebennik*
 
-    *Dan Kubb*
+*   Remove meaningless `ActiveSupport::FrozenObjectError`, which was just an alias of `RuntimeError`.
 
-*   Remove surrogate unicode character encoding from ActiveSupport::JSON.encode
-    The encoding scheme was broken for unicode characters outside the basic
-    multilingual plane; since json is assumed to be UTF-8, and we already force the
-    encoding to UTF-8 simply pass through the un-encoded characters.
+    *Akira Matsuda*
 
+*   Introduce `assert_not` to replace warty `assert !foo`.  *Jeremy Kemper*
+
+*   Prevent `Callbacks#set_callback` from setting the same callback twice.
+
+        before_save :foo, :bar, :foo
+
+    will at first call `bar`, then `foo`. `foo` will no more be called
+    twice.
+
+    *Dmitriy Kiriyenko*
+
+*   Add `ActiveSupport::Logger#silence` that works the same as the old `Logger#silence` extension.
+
+    *DHH*
+
+*   Remove surrogate unicode character encoding from `ActiveSupport::JSON.encode`
+    The encoding scheme was broken for unicode characters outside the basic multilingual plane;
+    since json is assumed to be UTF-8, and we already force the encoding to UTF-8,
+    simply pass through the un-encoded characters.
+
     *Brett Carter*
 
-*   Fix mocha v0.13.0 compatibility. *James Mead*
+*   Deprecate `Time.time_with_date_fallback`, `Time.utc_time` and `Time.local_time`.
+    These methods were added to handle the limited range of Ruby's native `Time`
+    implementation. Those limitations no longer apply so we are deprecating them in 4.0
+    and they will be removed in 4.1.
 
-*   `#as_json` isolates options when encoding a hash. [Backport #8185]
-    Fix #8182
+    *Andrew White*
 
+*   Deprecate `Date#to_time_in_current_zone` and add `Date#in_time_zone`. *Andrew White*
+
+*   Add `String#in_time_zone` method to convert a string to an `ActiveSupport::TimeWithZone`. *Andrew White*
+
+*   Deprecate `ActiveSupport::BasicObject` in favor of `ActiveSupport::ProxyObject`.
+    This class is used for proxy classes. It avoids confusion with Ruby's `BasicObject`
+    class.
+
+    *Francesco Rodriguez*
+
+*   Patched `Marshal#load` to work with constant autoloading. Fixes autoloading
+    with cache stores that rely on `Marshal` (`MemCacheStore` and `FileStore`).
+    Fixes #8167.
+
+    *Uriel Katz*
+
+*   Make `Time.zone.parse` to work with JavaScript format date strings. *Andrew White*
+
+*   Add `DateTime#seconds_until_end_of_day` and `Time#seconds_until_end_of_day`
+    as a complement for `seconds_from_midnight`; useful when setting expiration
+    times for caches, e.g.:
+
+        <% cache('dashboard', expires_in: Date.current.seconds_until_end_of_day) do %>
+          ...
+
+    *Olek Janiszewski*
+
+*   No longer proxy `ActiveSupport::Multibyte#class`. *Steve Klabnik*
+
+*   Deprecate `ActiveSupport::TestCase#pending` method, use `skip` from minitest instead. *Carlos Antonio da Silva*
+
+*   `XmlMini.with_backend` now may be safely used with threads:
+
+        Thread.new do
+          XmlMini.with_backend("REXML") { rexml_power }
+        end
+        Thread.new do
+          XmlMini.with_backend("LibXML") { libxml_power }
+        end
+
+    Each thread will use it's own backend.
+
+    *Nikita Afanasenko*
+
+*   Dependencies no longer trigger `Kernel#autoload` in `remove_constant`. Fixes #8213. *Xavier Noria*
+
+*   Simplify `mocha` integration and remove monkey-patches, bumping `mocha` to 0.13.0. *James Mead*
+
+*   `#as_json` isolates options when encoding a hash. Fixes #8182.
+
     *Yves Senn*
 
-*   Handle the possible Permission Denied errors atomic.rb might trigger due to
-    its chown and chmod calls. [Backport #8027]
+*   Deprecate `Hash#diff` in favor of minitest's #diff. *Steve Klabnik*
 
-    *Daniele Sluijters*
+*   `Kernel#capture` can catch output from subprocesses. *Dmitry Vorotilin*
 
+*   `to_xml` conversions now use builder's `tag!` method instead of explicit invocation of `method_missing`.
 
-## Rails 3.2.12 (Feb 11, 2013) ##
+    *Nikita Afanasenko*
 
-*   No changes.
+*   Fixed timezone mapping of the Solomon Islands. *Steve Klabnik*
 
+*   Make callstack attribute optional in `ActiveSupport::Deprecation::Reporting`
+    methods `warn` and `deprecation_warning`.
 
-## Rails 3.2.11 (Jan 8, 2012) ##
+    *Alexey Gaziev*
 
-*   Hash.from_xml raises when it encounters type="symbol" or type="yaml".
-    Use Hash.from_trusted_xml to parse this XML.
+*   Implement `HashWithIndifferentAccess#replace` so `key?` works correctly. *David Graham*
 
-    CVE-2013-0156
+*   Handle the possible permission denied errors `atomic.rb` might trigger due to its `chown`
+    and `chmod` calls.
 
-    *Jeremy Kemper*
+    *Daniele Sluijters*
 
+*   `Hash#extract!` returns only those keys that present in the receiver.
 
-## Rails 3.2.10 (Jan 2, 2013) ##
+        {a: 1, b: 2}.extract!(:a, :x) # => {:a => 1}
 
-*   No changes.
+    *Mikhail Dieterle*
 
+*   `Hash#extract!` returns the same subclass, that the receiver is. I.e.
+    `HashWithIndifferentAccess#extract!` returns a `HashWithIndifferentAccess` instance.
 
-## Rails 3.2.9 (Nov 12, 2012) ##
+    *Mikhail Dieterle*
 
-*   Add logger.push_tags and .pop_tags to complement logger.tagged:
+*   Optimize `ActiveSupport::Cache::Entry` to reduce memory and processing overhead. *Brian Durand*
 
+*   Tests tag the Rails log with the current test class and test case:
+
+        [SessionsControllerTest] [test_0002_sign in] Processing by SessionsController#create as HTML
+        [SessionsControllerTest] [test_0002_sign in] ...
+
+    *Jeremy Kemper*
+
+*   Add `logger.push_tags` and `.pop_tags` to complement `logger.tagged`:
+
         class Job
           def before
             Rails.logger.push_tags :jobs, self.class.name
           end
 
@@ -134,141 +239,225 @@
           end
         end
 
     *Jeremy Kemper*
 
-*  Add %:z and %::z format string support to ActiveSupport::TimeWithZone#strftime. [fixes #6962] *kennyj*
+*   Allow delegation to the class using the `:class` keyword, replacing
+    `self.class` usage:
 
+        class User
+          def self.hello
+           "world"
+          end
 
-## Rails 3.2.8 (Aug 9, 2012) ##
+          delegate :hello, to: :class
+        end
 
-*   Fix ActiveSupport integration with Mocha > 0.12.1. *Mike Gunderloy*
+    *Marc-Andre Lafortune*
 
-*   Reverted the deprecation of ActiveSupport::JSON::Variable. *Rafael Mendonça França*
+*   `Date.beginning_of_week` thread local and `beginning_of_week` application
+    config option added (default is Monday).
 
-*   ERB::Util.html_escape now escapes single quotes. *Santiago Pastorino*
+    *Innokenty Mikhailov*
 
+*   An optional block can be passed to `config_accessor` to set its default value
 
-## Rails 3.2.7 (Jul 26, 2012) ##
+        class User
+          include ActiveSupport::Configurable
 
-*   Hash#fetch(fetch) is not the same as doing hash[key]
+          config_accessor :hair_colors do
+            [:brown, :black, :blonde, :red]
+          end
+        end
 
-*   adds a missing require [fixes #6896]
+        User.hair_colors # => [:brown, :black, :blonde, :red]
 
-*   make sure the inflection rules are loaded when cherry-picking active_support/core_ext/string/inflections.rb [fixes #6884]
+    *Larry Lv*
 
-*   Merge pull request #6857 from rsutphin/as_core_ext_time_missing_require
+*   `ActiveSupport::Benchmarkable#silence` has been deprecated due to its lack of
+    thread safety. It will be removed without replacement in Rails 4.1.
 
-*   bump AS deprecation_horizon to 4.0
+    *Steve Klabnik*
 
+*   An optional block can be passed to `Hash#deep_merge`. The block will be invoked
+    for each duplicated key and used to resolve the conflict.
 
-## Rails 3.2.6 (Jun 12, 2012) ##
+    *Pranas Kiziela*
 
-*   No changes.
+*   `ActiveSupport::Deprecation` is now a class. It is possible to create an instance
+    of deprecator. Backwards compatibility has been preserved.
 
+    You can choose which instance of the deprecator will be used.
 
-## Rails 3.2.5 (Jun 1, 2012) ##
+        deprecate :method_name, deprecator: deprecator_instance
 
-*   ActiveSupport::JSON::Variable is deprecated. Define your own #as_json and #encode_json methods
-    for custom JSON string literals. *Erich Menge*
+    You can use `ActiveSupport::Deprecation` in your gem.
 
+        require 'active_support/deprecation'
+        require 'active_support/core_ext/module/deprecation'
 
-## Rails 3.2.4 (May 31, 2012) ##
+        class MyGem
+          def self.deprecator
+            ActiveSupport::Deprecation.new('2.0', 'MyGem')
+          end
 
-*   Added #beginning_of_hour and #end_of_hour to Time and DateTime core
-    extensions. *Mark J. Titorenko*
+          def old_method
+          end
 
+          def new_method
+          end
 
-## Rails 3.2.3 (March 30, 2012) ##
+          deprecate old_method: :new_method, deprecator: deprecator
+        end
 
-*   No changes.
+        MyGem.new.old_method
+        # => DEPRECATION WARNING: old_method is deprecated and will be removed from MyGem 2.0 (use new_method instead). (called from <main> at file.rb:18)
 
+    *Piotr Niełacny & Robert Pankowecki*
 
-## Rails 3.2.2 (March 1, 2012) ##
+*   `ERB::Util.html_escape` encodes single quote as `#39`. Decimal form has better support in old browsers. *Kalys Osmonov*
 
-*   No changes.
+*   `ActiveSupport::Callbacks`: deprecate monkey patch of object callbacks.
+    Using the `filter` method like this:
 
+        before_filter MyFilter.new
 
-## Rails 3.2.1 (January 26, 2012) ##
+        class MyFilter
+          def filter(controller)
+          end
+        end
 
-*   Documentation fixes and improvements.
+    Is now deprecated with recommendation to use the corresponding filter type
+    (`#before`, `#after` or `#around`):
 
-*   Update time zone offset information. *Ravil Bayramgalin*
+        before_filter MyFilter.new
 
-*   The deprecated `ActiveSupport::Base64.decode64` calls `::Base64.decode64`
-    now. *Jonathan Viney*
+        class MyFilter
+          def before(controller)
+          end
+        end
 
-*   Fixes uninitialized constant `ActiveSupport::TaggedLogging::ERROR`. *kennyj*
+    *Bogdan Gusiev*
 
+*   An optional block can be passed to `HashWithIndifferentAccess#update` and `#merge`.
+    The block will be invoked for each duplicated key, and used to resolve the conflict,
+    thus replicating the behaviour of the corresponding methods on the `Hash` class.
 
-## Rails 3.2.0 (January 20, 2012) ##
+    *Leo Cassarani*
 
-*   ActiveSupport::Base64 is deprecated in favor of ::Base64. *Sergey Nartimov*
+*   Remove `j` alias for `ERB::Util#json_escape`.
+    The `j` alias is already used for `ActionView::Helpers::JavaScriptHelper#escape_javascript`
+    and both modules are included in the view context that would confuse the developers.
 
-*   Module#synchronize is deprecated with no replacement.  Please use `monitor`
-    from ruby's standard library.
+    *Akira Matsuda*
 
-*   (Date|DateTime|Time)#beginning_of_week accept an optional argument to
-    be able to set the day at which weeks are assumed to start.
+*   Replace deprecated `memcache-client` gem with `dalli` in `ActiveSupport::Cache::MemCacheStore`.
 
-*   Deprecated ActiveSupport::MessageEncryptor#encrypt and decrypt. *José Valim*
+    *Guillermo Iguaran*
 
-*   ActiveSupport::Notifications.subscribed provides subscriptions to events while a block runs. *fxn*
+*   Add default values to all `ActiveSupport::NumberHelper` methods, to avoid
+    errors with empty locales or missing values.
 
-*   Module#qualified_const_(defined?|get|set) are analogous to the corresponding methods
-    in the standard API, but accept qualified constant names. *fxn*
+    *Carlos Antonio da Silva*
 
-*   Added inflection #deconstantize which complements #demodulize. This inflection
-    removes the righmost segment in a qualified constant name. *fxn*
+*   `ActiveSupport::JSON::Variable` is deprecated. Define your own `#as_json` and
+    `#encode_json` methods for custom JSON string literals.
 
-*   Added ActiveSupport:TaggedLogging that can wrap any standard Logger class to provide tagging capabilities *DHH*
+    *Erich Menge*
 
-        Logger = ActiveSupport::TaggedLogging.new(Logger.new(STDOUT))
-        Logger.tagged("BCX") { Logger.info "Stuff" }                            # Logs "[BCX] Stuff"
-        Logger.tagged("BCX", "Jason") { Logger.info "Stuff" }                   # Logs "[BCX] [Jason] Stuff"
-        Logger.tagged("BCX") { Logger.tagged("Jason") { Logger.info "Stuff" } } # Logs "[BCX] [Jason] Stuff"
+*   Add `String#indent`. *fxn & Ace Suares*
 
-*   Added safe_constantize that constantizes a string but returns nil instead of an exception if the constant (or part of it) does not exist *Ryan Oblak*
+*   Inflections can now be defined per locale. `singularize` and `pluralize`
+    accept locale as an extra argument.
 
-*   ActiveSupport::OrderedHash is now marked as extractable when using Array#extract_options! *Prem Sichanugrist*
+    *David Celis*
 
-*   Added Array#prepend as an alias for Array#unshift and Array#append as an alias for Array#<< *DHH*
+*   `Object#try` will now return `nil` instead of raise a `NoMethodError` if the
+    receiving object does not implement the method, but you can still get the
+    old behavior by using the new `Object#try!`.
 
-*   The definition of blank string for Ruby 1.9 has been extended to Unicode whitespace.
-    Also, in 1.8 the ideographic space U+3000 is considered to be whitespace. *Akira Matsuda, Damien Mathieu*
+    *DHH*
 
-*   The inflector understands acronyms. *dlee*
+*   `ERB::Util.html_escape` now escapes single quotes. *Santiago Pastorino*
 
-*   Deprecated ActiveSupport::Memoizable in favor of Ruby memoization pattern *José Valim*
+*   `Time#change` now works with time values with offsets other than UTC or the local time zone. *Andrew White*
 
-*   Added Time#all_day/week/quarter/year as a way of generating ranges (example: Event.where(created_at: Time.now.all_week)) *DHH*
+*   `ActiveSupport::Callbacks`: deprecate usage of filter object with `#before` and `#after` methods as `around` callback. *Bogdan Gusiev*
 
-*   Added instance_accessor: false as an option to Class#cattr_accessor and friends *DHH*
+*   Add `Time#prev_quarter` and `Time#next_quarter` short-hands for `months_ago(3)` and `months_since(3)`. *SungHee Kang*
 
-*   Removed ActiveSupport::SecureRandom in favor of SecureRandom from the standard library *Jon Leighton*
+*   Remove obsolete and unused `require_association` method from dependencies. *fxn*
 
-*   ActiveSupport::OrderedHash now has different behavior for #each and
-    \#each_pair when given a block accepting its parameters with a splat. *Andrew Radev*
+*   Add `:instance_accessor` option for `config_accessor`.
 
-*   ActiveSupport::BufferedLogger#silence is deprecated.  If you want to squelch
-    logs for a certain block, change the log level for that block.
+        class User
+          include ActiveSupport::Configurable
+          config_accessor :allowed_access, instance_accessor: false
+        end
 
-*   ActiveSupport::BufferedLogger#open_log is deprecated.  This method should
-    not have been public in the first place.
+        User.new.allowed_access = true # => NoMethodError
+        User.new.allowed_access        # => NoMethodError
 
-*   ActiveSupport::BufferedLogger's behavior of automatically creating the
-    directory for your log file is deprecated.  Please make sure to create the
-    directory for your log file before instantiating.
+    *Francesco Rodriguez*
 
-*   ActiveSupport::BufferedLogger#auto_flushing is deprecated.  Either set the
-    sync level on the underlying file handle like this:
+*   `ActionView::Helpers::NumberHelper` methods have been moved to `ActiveSupport::NumberHelper` and are now available via
+    `Numeric#to_s`.  `Numeric#to_s` now accepts the formatting options `:phone`, `:currency`, `:percentage`, `:delimited`,
+    `:rounded`, `:human`, and `:human_size`.
 
-        f = File.open('foo.log', 'w')
-        f.sync = true
-        ActiveSupport::BufferedLogger.new f
+    *Andrew Mutz*
 
-    Or tune your filesystem.  The FS cache is now what controls flushing.
+*   Add `Hash#transform_keys`, `Hash#transform_keys!`, `Hash#deep_transform_keys`, and `Hash#deep_transform_keys!`. *Mark McSpadden*
 
-*   ActiveSupport::BufferedLogger#flush is deprecated.  Set sync on your
-    filehandle, or tune your filesystem.
+*   Changed XML type `datetime` to `dateTime` (with upper case letter `T`). *Angelo Capilleri*
 
-Please check [3-1-stable](https://github.com/rails/rails/blob/3-1-stable/activesupport/CHANGELOG.md) for previous changes.
+*   Add `:instance_accessor` option for `class_attribute`. *Alexey Vakhov*
+
+*   `constantize` now looks in the ancestor chain. *Marc-Andre Lafortune & Andrew White*
+
+*   Adds `Hash#deep_stringify_keys` and `Hash#deep_stringify_keys!` to convert all keys from a `Hash` instance into strings. *Lucas Húngaro*
+
+*   Adds `Hash#deep_symbolize_keys` and `Hash#deep_symbolize_keys!` to convert all keys from a `Hash` instance into symbols. *Lucas Húngaro*
+
+*   `Object#try` can't call private methods. *Vasiliy Ermolovich*
+
+*   `AS::Callbacks#run_callbacks` remove `key` argument. *Francesco Rodriguez*
+
+*   `deep_dup` works more expectedly now and duplicates also values in `Hash` instances and elements in `Array` instances. *Alexey Gaziev*
+
+*   Inflector no longer applies ice -> ouse to words like "slice", "police", etc. *Wes Morgan*
+
+*   Add `ActiveSupport::Deprecations.behavior = :silence` to completely ignore Rails runtime deprecations. *twinturbo*
+
+*   Make `Module#delegate` stop using `send` - can no longer delegate to private methods. *dasch*
+
+*   `ActiveSupport::Callbacks`: deprecate `:rescuable` option. *Bogdan Gusiev*
+
+*   Adds `Integer#ordinal` to get the ordinal suffix string of an integer. *Tim Gildea*
+
+*   `ActiveSupport::Callbacks`: `:per_key` option is no longer supported. *Bogdan Gusiev*
+
+*   `ActiveSupport::Callbacks#define_callbacks`: add `:skip_after_callbacks_if_terminated` option. *Bogdan Gusiev*
+
+*   Add `html_escape_once` to `ERB::Util`, and delegate the `escape_once` tag helper to it. *Carlos Antonio da Silva*
+
+*   Deprecates the compatibility method `Module#local_constant_names`,
+    use `Module#local_constants` instead (which returns symbols). *Xavier Noria*
+
+*   Deletes the compatibility method `Module#method_names`,
+    use `Module#methods` from now on (which returns symbols). *Xavier Noria*
+
+*   Deletes the compatibility method `Module#instance_method_names`,
+    use `Module#instance_methods` from now on (which returns symbols). *Xavier Noria*
+
+*   `BufferedLogger` is deprecated. Use `ActiveSupport::Logger`, or the logger
+    from the Ruby standard library.
+
+    *Aaron Patterson*
+
+*   Unicode database updated to 6.1.0. *Norman Clarke*
+
+*   Adds `encode_big_decimal_as_string` option to force JSON serialization of `BigDecimal` as numeric instead
+    of wrapping them in strings for safety.
+
+*   Optimize log subscribers to check log level before doing any processing. *Brian Durand*
+
+Please check [3-2-stable](https://github.com/rails/rails/blob/3-2-stable/activesupport/CHANGELOG.md) for previous changes.