1 files changed, 107 insertions, 0 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 7b7f496f2e..a434c98655 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,90 @@
+*   Default the new `I18n.enforce_available_locales` config to `true`, meaning
+    `I18n` will make sure that all locales passed to it must be declared in the
+    `available_locales` list.
+
+    To disable it add the following configuration to your application:
+
+        config.i18n.enforce_available_locales = false
+
+    This also ensures I18n configuration is properly initialized taking the new
+    option into account, to avoid their deprecations while booting up the app.
+
+    *Carlos Antonio da Silva*, *Yves Senn*
+
+*   Introduce Module#concerning: a natural, low-ceremony way to separate
+    responsibilities within a class.
+
+    Imported from https://github.com/37signals/concerning#readme
+
+        class Todo < ActiveRecord::Base
+          concerning :EventTracking do
+            included do
+              has_many :events
+            end
+
+            def latest_event
+              ...
+            end
+
+            private
+              def some_internal_method
+                ...
+              end
+          end
+
+          concerning :Trashable do
+            def trashed?
+              ...
+            end
+
+            def latest_event
+              super some_option: true
+            end
+          end
+        end
+
+    is equivalent to defining these modules inline, extending them into
+    concerns, then mixing them in to the class.
+
+    Inline concerns tame "junk drawer" classes that intersperse many unrelated
+    class-level declarations, public instance methods, and private
+    implementation. Coalesce related bits and give them definition.
+    These are a stepping stone toward future growth & refactoring.
+
+    When to move on from an inline concern:
+     * Encapsulating state? Extract collaborator object.
+     * Encompassing more public behavior or implementation? Move to separate file.
+     * Sharing behavior among classes? Move to separate file.
+
+    *Jeremy Kemper*
+
+*   Fix file descriptor being leaked on each call to `Kernel.silence_stream`.
+
+    *Mario Visic*
+
+*   Added `Date#all_week/month/quarter/year` for generating date ranges.
+
+    *Dmitriy Meremyanin*
+
+*   Add `Time.zone.yesterday` and `Time.zone.tomorrow`. These follow the
+    behavior of Ruby's `Date.yesterday` and `Date.tomorrow` but return localized
+    versions, similar to how `Time.zone.today` has returned a localized version
+    of `Date.today`.
+
+    *Colin Bartlett*
+
+*   Show valid keys when `assert_valid_keys` raises an exception, and show the
+    wrong value as it was entered.
+
+    *Gonzalo Rodríguez-Baltanás Díaz*
+
+*   Both `cattr_*` and `mattr_*` method definitions now live in `active_support/core_ext/module/attribute_accessors`.
+
+    Requires to `active_support/core_ext/class/attribute_accessors` are
+    deprecated and will be removed in Ruby on Rails 4.2.
+
+    *Genadi Samokovarov*
+
 *   Deprecated `Numeric#{ago,until,since,from_now}`, the user is expected to explicitly
     convert the value into an AS::Duration, i.e. `5.ago` => `5.seconds.ago`
 
@@ -19,6 +106,22 @@
 
     *Godfrey Chan*
 
+*   Removed the old pure-Ruby JSON encoder and switched to a new encoder based on the built-in JSON
+    gem.
+
+    Support for encoding `BigDecimal` as a JSON number, as well as defining custom `encode_json`
+    methods to control the JSON output has been **removed from core**. The new encoder will always
+    encode BigDecimals as `String`s and ignore any custom `encode_json` methods.
+
+    The old encoder has been extracted into the `activesupport-json_encoder` gem. Installing that
+    gem will bring back the ability to encode `BigDecimal`s as numbers as well as `encode_json`
+    support.
+
+    Setting the related configuration `ActiveSupport.encode_big_decimal_as_string` without the
+    `activesupport-json_encoder` gem installed will raise an error.
+
+    *Godfrey Chan*
+
 *   Add `ActiveSupport::Testing::TimeHelpers#travel` and `#travel_to`. These methods change current
     time to the given time or time difference by stubbing `Time.now` and `Date.today` to return the
     time or date after the difference calculation, or the time or date that got passed into the
@@ -327,6 +430,10 @@
 
     *Yves Senn*
 
+*   Removed deprecated `ActiveSupport::JSON::Variable` with no replacement.
+
+    *Toshinori Kajihara*
+
 *   Raise an error when multiple `included` blocks are defined for a Concern.
     The old behavior would silently discard previously defined blocks, running
     only the last one.