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diff --git a/guides/source/4_1_release_notes.md b/guides/source/4_1_release_notes.md index 449c279d39..924e5d90db 100644 --- a/guides/source/4_1_release_notes.md +++ b/guides/source/4_1_release_notes.md @@ -3,7 +3,10 @@ Ruby on Rails 4.1 Release Notes Highlights in Rails 4.1: -* Action View extracted from Action Pack +* Spring application preloader +* `config/secrets.yml` +* Action Pack variants +* Action Mailer previews These release notes cover only the major changes. To know about various bug fixes and changes, please refer to the change logs or check out the @@ -20,145 +23,270 @@ coverage before going in. You should also first upgrade to Rails 4.0 in case you haven't and make sure your application still runs as expected before attempting an update to Rails 4.1. A list of things to watch out for when upgrading is available in the -[Upgrading to Rails](upgrading_ruby_on_rails.html#upgrading-from-rails-4-0-to-rails-4-1) +[Upgrading Ruby on Rails](upgrading_ruby_on_rails.html#upgrading-from-rails-4-0-to-rails-4-1) guide. Major Features -------------- +### Spring Application Preloader -Documentation -------------- +Spring is a Rails application preloader. It speeds up development by keeping +your application running in the background so you don't need to boot it every +time you run a test, rake task or migration. +New Rails 4.1 applications will ship with "springified" binstubs. This means +that `bin/rails` and `bin/rake` will automatically take advantage of preloaded +spring environments. -Railties --------- +**Running rake tasks:** -Please refer to the -[Changelog](https://github.com/rails/rails/blob/4-1-stable/railties/CHANGELOG.md) -for detailed changes. +``` +bin/rake test:models +``` -### Removals +**Running a Rails command:** -* Removed `update:application_controller` rake task. +``` +bin/rails console +``` -* Removed deprecated `Rails.application.railties.engines`. +**Spring introspection:** -* Removed deprecated threadsafe! from Rails Config. +``` +$ bin/spring status +Spring is running: -* Remove deprecated `ActiveRecord::Generators::ActiveModel#update_attributes` in - favor of `ActiveRecord::Generators::ActiveModel#update` + 1182 spring server | my_app | started 29 mins ago + 3656 spring app | my_app | started 23 secs ago | test mode + 3746 spring app | my_app | started 10 secs ago | development mode +``` -* Remove deprecated `config.whiny_nils` option +Have a look at the +[Spring README](https://github.com/jonleighton/spring/blob/master/README.md) to +see all available features. -* Removed deprecated rake tasks for running tests: `rake test:uncommitted` and - `rake test:recent`. +See the [Upgrading Ruby on Rails](upgrading_ruby_on_rails.html#spring) +guide on how to migrate existing applications to use this feature. -### Notable changes +### `config/secrets.yml` -* `BACKTRACE` environment variable to show unfiltered backtraces for test - failures. ([Commit](https://github.com/rails/rails/commit/84eac5dab8b0fe9ee20b51250e52ad7bfea36553)) +Rails 4.1 generates a new `secrets.yml` file in the `config` folder. By default, +this file contains the application's `secret_key_base`, but it could also be +used to store other secrets such as access keys for external APIs. -* Expose MiddlewareStack#unshift to environment configuration. ([Pull Request](https://github.com/rails/rails/pull/12479)) +The secrets added to this file are accessible via `Rails.application.secrets`. +For example, with the following `config/secrets.yml`: +```yaml +development: + secret_key_base: 3b7cd727ee24e8444053437c36cc66c3 + some_api_key: SOMEKEY +``` -Action Mailer -------------- +`Rails.application.secrets.some_api_key` returns `SOMEKEY` in the development +environment. -Please refer to the -[Changelog](https://github.com/rails/rails/blob/4-1-stable/actionmailer/CHANGELOG.md) -for detailed changes. +See the [Upgrading Ruby on Rails](upgrading_ruby_on_rails.html#config-secrets-yml) +guide on how to migrate existing applications to use this feature. -### Notable changes +### Action Pack Variants -* Instrument the generation of Action Mailer messages. The time it takes to - generate a message is written to the log. ([Pull Request](https://github.com/rails/rails/pull/12556)) +We often want to render different HTML/JSON/XML templates for phones, +tablets, and desktop browsers. Variants make it easy. +The request variant is a specialization of the request format, like `:tablet`, +`:phone`, or `:desktop`. -Active Model ------------- +You can set the variant in a `before_action`: -Please refer to the -[Changelog](https://github.com/rails/rails/blob/4-1-stable/activemodel/CHANGELOG.md) -for detailed changes. +```ruby +request.variant = :tablet if request.user_agent =~ /iPad/ +``` -### Deprecations +Respond to variants in the action just like you respond to formats: -* Deprecate `Validator#setup`. This should be done manually now in the - validator's constructor. ([Commit](https://github.com/rails/rails/commit/7d84c3a2f7ede0e8d04540e9c0640de7378e9b3a)) +```ruby +respond_to do |format| + format.html do |html| + html.tablet # renders app/views/projects/show.html+tablet.erb + html.phone { extra_setup; render ... } + end +end +``` -### Notable changes +Provide separate templates for each format and variant: -* Added new API methods `reset_changes` and `changes_applied` to - `ActiveModel::Dirty` that control changes state. +``` +app/views/projects/show.html.erb +app/views/projects/show.html+tablet.erb +app/views/projects/show.html+phone.erb +``` +You can also simplify the variants definition using the inline syntax: -Active Support --------------- +```ruby +respond_to do |format| + format.js { render "trash" } + format.html.phone { redirect_to progress_path } + format.html.none { render "trash" } +end +``` -Please refer to the -[Changelog](https://github.com/rails/rails/blob/4-1-stable/activesupport/CHANGELOG.md) -for detailed changes. +### Action Mailer Previews +Action Mailer previews provide a way to visually see how emails look by visiting +a special URL that renders them. -### Removals +You implement a preview class whose methods return the mail object you'd like +to check: -* Remove deprecated `String#encoding_aware?` core extensions (`core_ext/string/encoding`). +```ruby +class NotifierPreview < ActionMailer::Preview + def welcome + Notifier.welcome(User.first) + end +end +``` -* Remove deprecated `Module#local_constant_names` in favor of `Module#local_constants`. +The preview is available in http://localhost:3000/rails/mailers/notifier/welcome, +and a list of them in http://localhost:3000/rails/mailers. -* Remove deprecated `DateTime.local_offset` in favor of `DateTime.civil_from_fromat`. +By default, these preview classes live in `test/mailers/previews`. +This can be configured using the `preview_path` option. -* Remove deprecated `Logger` core extensions (`core_ext/logger.rb`). +See its +[documentation](http://api.rubyonrails.org/v4.1.0/classes/ActionMailer/Base.html) +for a detailed write up. -* Remove deprecated `Time#time_with_datetime_fallback`, `Time#utc_time` and - `Time#local_time` in favor of `Time#utc` and `Time#local`. +### Active Record enums -* Remove deprecated `Hash#diff` with no replacement. +Declare an enum attribute where the values map to integers in the database, but +can be queried by name. -* Remove deprecated `Date#to_time_in_current_zone` in favor of `Date#in_time_zone`. +```ruby +class Conversation < ActiveRecord::Base + enum status: [ :active, :archived ] +end -* Remove deprecated `Proc#bind` with no replacement. +conversation.archived! +conversation.active? # => false +conversation.status # => "archived" -* Remove deprecated `Array#uniq_by` and `Array#uniq_by!`, use native - `Array#uniq` and `Array#uniq!` instead. +Conversation.archived # => Relation for all archived Conversations +``` -* Remove deprecated `ActiveSupport::BasicObject`, use - `ActiveSupport::ProxyObject` instead. +See its +[documentation](http://api.rubyonrails.org/v4.1.0/classes/ActiveRecord/Enum.html) +for a detailed write up. -* Remove deprecated `BufferedLogger`, use `ActiveSupport::Logger` instead. +### Message Verifiers -* Remove deprecated `assert_present` and `assert_blank` methods, use `assert - object.blank?` and `assert object.present?` instead. +Message verifiers can be used to generate and verify signed messages. This can +be useful to safely transport sensitive data like remember-me tokens and +friends. -### Deprecations +The method `Rails.application.message_verifier` returns a new message verifier +that signs messages with a key derived from secret_key_base and the given +message verifier name: -* 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` - ([Pull Request](https://github.com/rails/rails/pull/12389)) +```ruby +signed_token = Rails.application.message_verifier(:remember_me).generate(token) +Rails.application.message_verifier(:remember_me).verify(signed_token) # => token + +Rails.application.message_verifier(:remember_me).verify(tampered_token) +# raises ActiveSupport::MessageVerifier::InvalidSignature +``` + +### Module#concerning + +A natural, low-ceremony way to separate responsibilities within a class: + +```ruby +class Todo < ActiveRecord::Base + concerning :EventTracking do + included do + has_many :events + end + + def latest_event + ... + end + + private + def some_internal_method + ... + end + end +end +``` + +This example is equivalent to defining a `EventTracking` module inline, +extending it with `ActiveSupport::Concern`, then mixing it in to the +`Todo` class. + +See its +[documentation](http://api.rubyonrails.org/v4.1.0/classes/Module/Concerning.html) +for a detailed write up and the intended use cases. + +### CSRF protection from remote `<script>` tags + +Cross-site request forgery (CSRF) protection now covers GET requests with +JavaScript responses, too. That prevents a third-party site from referencing +your JavaScript URL and attempting to run it to extract sensitive data. + +This means any of your tests that hit `.js` URLs will now fail CSRF protection +unless they use `xhr`. Upgrade your tests to be explicit about expecting +XmlHttpRequests. Instead of `post :create, format: :js`, switch to the explicit +`xhr :post, :create, format: :js`. + +Railties +-------- + +Please refer to the +[Changelog](https://github.com/rails/rails/blob/4-1-stable/railties/CHANGELOG.md) +for detailed changes. + +### Removals + +* Removed `update:application_controller` rake task. + +* Removed deprecated `Rails.application.railties.engines`. + +* Removed deprecated `threadsafe!` from Rails Config. + +* Removed deprecated `ActiveRecord::Generators::ActiveModel#update_attributes` in + favor of `ActiveRecord::Generators::ActiveModel#update`. + +* Removed deprecated `config.whiny_nils` option. + +* Removed deprecated rake tasks for running tests: `rake test:uncommitted` and + `rake test:recent`. ### Notable changes -* 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`. ([Pull Request](https://github.com/rails/rails/pull/12824)) +* The [Spring application + preloader](https://github.com/jonleighton/spring) is now installed + by default for new applications. It uses the development group of + the Gemfile, so will not be installed in + production. ([Pull Request](https://github.com/rails/rails/pull/12958)) -* Added `Numeric#in_milliseconds`, like `1.hour.in_milliseconds`, so we can feed - them to JavaScript functions like - `getTime()`. ([Commit](https://github.com/rails/rails/commit/423249504a2b468d7a273cbe6accf4f21cb0e643)) +* `BACKTRACE` environment variable to show unfiltered backtraces for test + failures. ([Commit](https://github.com/rails/rails/commit/84eac5dab8b0fe9ee20b51250e52ad7bfea36553)) -* Add `Date#middle_of_day`, `DateTime#middle_of_day` and `Time#middle_of_day` - methods. Also added `midday`, `noon`, `at_midday`, `at_noon` and - `at_middle_of_day` as - aliases. ([Pull Request](https://github.com/rails/rails/pull/10879)) +* Exposed `MiddlewareStack#unshift` to environment + configuration. ([Pull Request](https://github.com/rails/rails/pull/12479)) -* Add `String#remove(pattern)` as a short-hand for the common pattern of - `String#gsub(pattern,'')`. ([Commit](https://github.com/rails/rails/commit/5da23a3f921f0a4a3139495d2779ab0d3bd4cb5f)) +* Add `Application#message_verifier` method to return a message + verifier. ([Pull Request](https://github.com/rails/rails/pull/12995)) -* Remove 'cow' => 'kine' irregular inflection from default - inflections. ([Commit](https://github.com/rails/rails/commit/c300dca9963bda78b8f358dbcb59cabcdc5e1dc9)) +* The `test_help.rb` file which is required by the default generated test + helper will automatically keep your test database up-to-date with + `db/schema.rb` (or `db/structure.sql`). It raises an error if + reloading the schema does not resolve all pending migrations. Opt out + with `config.active_record.maintain_test_schema = false`. ([Pull + Request](https://github.com/rails/rails/pull/13528)) Action Pack ----------- @@ -169,34 +297,55 @@ for detailed changes. ### Removals -* Remove deprecated Rails application fallback for integration testing, set - `ActionDispatch.test_app` instead. +* Removed deprecated Rails application fallback for integration testing, set + `ActionDispatch.test_app` instead. + +* Removed deprecated `page_cache_extension` config. -* Remove deprecated `page_cache_extension` config. +* Removed deprecated `ActionController::RecordIdentifier`, use + `ActionView::RecordIdentifier` instead. -* Remove deprecated constants from Action Controller: +* Removed deprecated constants from Action Controller: - ActionController::AbstractRequest => ActionDispatch::Request - ActionController::Request => ActionDispatch::Request - ActionController::AbstractResponse => ActionDispatch::Response - ActionController::Response => ActionDispatch::Response - ActionController::Routing => ActionDispatch::Routing - ActionController::Integration => ActionDispatch::Integration - ActionController::IntegrationTest => ActionDispatch::IntegrationTest + | Removed | Successor | + |:-----------------------------------|:--------------------------------| + | ActionController::AbstractRequest | ActionDispatch::Request | + | ActionController::Request | ActionDispatch::Request | + | ActionController::AbstractResponse | ActionDispatch::Response | + | ActionController::Response | ActionDispatch::Response | + | ActionController::Routing | ActionDispatch::Routing | + | ActionController::Integration | ActionDispatch::Integration | + | ActionController::IntegrationTest | ActionDispatch::IntegrationTest | ### Notable changes -* Take a hash with options inside array in - `#url_for`. ([Pull Request](https://github.com/rails/rails/pull/9599)) +* `protect_from_forgery` also prevents cross-origin `<script>` tags. + Update your tests to use `xhr :get, :foo, format: :js` instead of + `get :foo, format: :js`. + ([Pull Request](https://github.com/rails/rails/pull/13345)) -* Add `session#fetch` method fetch behaves similarly to +* `#url_for` takes a hash with options inside an + array. ([Pull Request](https://github.com/rails/rails/pull/9599)) + +* Added `session#fetch` method fetch behaves similarly to [Hash#fetch](http://www.ruby-doc.org/core-1.9.3/Hash.html#method-i-fetch), with the exception that the returned value is always saved into the session. ([Pull Request](https://github.com/rails/rails/pull/12692)) -* Separate Action View completely from Action +* Separated Action View completely from Action Pack. ([Pull Request](https://github.com/rails/rails/pull/11032)) +Action Mailer +------------- + +Please refer to the +[Changelog](https://github.com/rails/rails/blob/4-1-stable/actionmailer/CHANGELOG.md) +for detailed changes. + +### Notable changes + +* Instrument the generation of Action Mailer messages. The time it takes to + generate a message is written to the log. ([Pull Request](https://github.com/rails/rails/pull/12556)) Active Record ------------- @@ -207,89 +356,86 @@ for detailed changes. ### Removals -* Remove deprecated nil-passing to the following `SchemaCache` methods: +* Removed deprecated nil-passing to the following `SchemaCache` methods: `primary_keys`, `tables`, `columns` and `columns_hash`. -* Remove deprecated block filter from `ActiveRecord::Migrator#migrate`. +* Removed deprecated block filter from `ActiveRecord::Migrator#migrate`. -* Remove deprecated String constructor from `ActiveRecord::Migrator`. +* Removed deprecated String constructor from `ActiveRecord::Migrator`. -* Remove deprecated `scope` use without passing a callable object. +* Removed deprecated `scope` use without passing a callable object. -* Remove deprecated `transaction_joinable=` in favor of `begin_transaction` - with `:joinable` option. +* Removed deprecated `transaction_joinable=` in favor of `begin_transaction` + with `d:joinable` option. -* Remove deprecated `decrement_open_transactions`. +* Removed deprecated `decrement_open_transactions`. -* Remove deprecated `increment_open_transactions`. +* Removed deprecated `increment_open_transactions`. -* Remove deprecated `PostgreSQLAdapter#outside_transaction?` +* Removed deprecated `PostgreSQLAdapter#outside_transaction?` method. You can use `#transaction_open?` instead. -* Remove deprecated `ActiveRecord::Fixtures.find_table_name` in favor of +* Removed deprecated `ActiveRecord::Fixtures.find_table_name` in favor of `ActiveRecord::Fixtures.default_fixture_model_name`. * Removed deprecated `columns_for_remove` from `SchemaStatements`. -* Remove deprecated `SchemaStatements#distinct`. +* Removed deprecated `SchemaStatements#distinct`. -* Move deprecated `ActiveRecord::TestCase` into the rails test +* Moved deprecated `ActiveRecord::TestCase` into the Rails test suite. The class is no longer public and is only used for internal Rails tests. * Removed support for deprecated option `:restrict` for `:dependent` in associations. -* Removed support for deprecated `delete_sql` in associations. - -* Removed support for deprecated `insert_sql` in associations. - -* Removed support for deprecated `finder_sql` in associations. - -* Removed support for deprecated `counter_sql` in associations. +* Removed support for deprecated `:delete_sql`, `:insert_sql`, `:finder_sql` + and `:counter_sql` options in associations. * Removed deprecated method `type_cast_code` from Column. -* Removed deprecated options `delete_sql` and `insert_sql` from HABTM - association. - -* Removed deprecated options `finder_sql` and `counter_sql` from - collection association. - -* Remove deprecated `ActiveRecord::Base#connection` method. +* Removed deprecated `ActiveRecord::Base#connection` method. Make sure to access it via the class. -* Remove deprecation warning for `auto_explain_threshold_in_seconds`. +* Removed deprecation warning for `auto_explain_threshold_in_seconds`. -* Remove deprecated `:distinct` option from `Relation#count`. +* Removed deprecated `:distinct` option from `Relation#count`. * Removed deprecated methods `partial_updates`, `partial_updates?` and `partial_updates=`. -* Removed deprecated method `scoped` +* Removed deprecated method `scoped`. -* Removed deprecated method `default_scopes?` +* Removed deprecated method `default_scopes?`. * Remove implicit join references that were deprecated in 4.0. -* Remove `activerecord-deprecated_finders` as a dependency +* Removed `activerecord-deprecated_finders` as a dependency. -* Usage of `implicit_readonly` is being removed`. Please use `readonly` method +* Removed usage of `implicit_readonly`. Please use `readonly` method explicitly to mark records as - `readonly. ([Pull Request](https://github.com/rails/rails/pull/10769)) + `readonly`. ([Pull Request](https://github.com/rails/rails/pull/10769)) ### Deprecations -* Deprecate `quoted_locking_column` method, which isn't used anywhere. +* Deprecated `quoted_locking_column` method, which isn't used anywhere. -* Deprecate the delegation of Array bang methods for associations. +* Deprecated the delegation of Array bang methods for associations. To use them, instead first call `#to_a` on the association to access the array to be acted on. ([Pull Request](https://github.com/rails/rails/pull/12129)) -* Deprecate `ConnectionAdapters::SchemaStatements#distinct`, +* Deprecated `ConnectionAdapters::SchemaStatements#distinct`, as it is no longer used by internals. ([Pull Request](https://github.com/rails/rails/pull/10556)) +* Deprecated `rake db:test:*` tasks as the test database is now + automatically maintained. See railties release notes. ([Pull + Request](https://github.com/rails/rails/pull/13528)) + +* Deprecate unused `ActiveRecord::Base.symbolized_base_class` + and `ActiveRecord::Base.symbolized_sti_name` without + replacement. [Commit](https://github.com/rails/rails/commit/97e7ca48c139ea5cce2fa9b4be631946252a1ebd) + ### Notable changes * Added `ActiveRecord::Base.to_param` for convenient "pretty" URLs derived from @@ -308,7 +454,7 @@ for detailed changes. * Added `ActiveRecord::QueryMethods#rewhere` which will overwrite an existing, named where condition. ([Commit](https://github.com/rails/rails/commit/f950b2699f97749ef706c6939a84dfc85f0b05f2)) -* Extend `ActiveRecord::Base#cache_key` to take an optional list of timestamp +* Extended `ActiveRecord::Base#cache_key` to take an optional list of timestamp attributes of which the highest will be used. ([Commit](https://github.com/rails/rails/commit/e94e97ca796c0759d8fcb8f946a3bbc60252d329)) * Added `ActiveRecord::Base#enum` for declaring enum attributes where the values @@ -337,7 +483,7 @@ for detailed changes. connection. This means that calling `inspect`, when the database is missing, will no longer raise an exception. ([Pull Request](https://github.com/rails/rails/pull/11014)) -* Remove column restrictions for `count`, let the database raise if the SQL is +* Removed column restrictions for `count`, let the database raise if the SQL is invalid. ([Pull Request](https://github.com/rails/rails/pull/10710)) * Rails now automatically detects inverse associations. If you do not set the @@ -348,6 +494,131 @@ for detailed changes. ActiveRecord will now translate aliased attribute names to the actual column name used in the database. ([Pull Request](https://github.com/rails/rails/pull/7839)) +* The ERB in fixture files is no longer evaluated in the context of the main + object. Helper methods used by multiple fixtures should be defined on modules + included in `ActiveRecord::FixtureSet.context_class`. ([Pull Request](https://github.com/rails/rails/pull/13022)) + +* Don't create or drop the test database if RAILS_ENV is specified explicitly. + +Active Model +------------ + +Please refer to the +[Changelog](https://github.com/rails/rails/blob/4-1-stable/activemodel/CHANGELOG.md) +for detailed changes. + +### Deprecations + +* Deprecate `Validator#setup`. This should be done manually now in the + validator's constructor. ([Commit](https://github.com/rails/rails/commit/7d84c3a2f7ede0e8d04540e9c0640de7378e9b3a)) + +### Notable changes + +* Added new API methods `reset_changes` and `changes_applied` to + `ActiveModel::Dirty` that control changes state. + + +Active Support +-------------- + +Please refer to the +[Changelog](https://github.com/rails/rails/blob/4-1-stable/activesupport/CHANGELOG.md) +for detailed changes. + + +### Removals + +* Removed `MultiJSON` dependency. As a result, `ActiveSupport::JSON.decode` + no longer accepts an options hash for `MultiJSON`. ([Pull Request](https://github.com/rails/rails/pull/10576) / [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +* Removed support for the `encode_json` hook used for encoding custom objects into + JSON. This feature has been extracted into the [activesupport-json_encoder](https://github.com/rails/activesupport-json_encoder) + gem. + ([Related Pull Request](https://github.com/rails/rails/pull/12183) / + [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +* Removed deprecated `ActiveSupport::JSON::Variable` with no replacement. + +* Removed deprecated `String#encoding_aware?` core extensions (`core_ext/string/encoding`). + +* Removed deprecated `Module#local_constant_names` in favor of `Module#local_constants`. + +* Removed deprecated `DateTime.local_offset` in favor of `DateTime.civil_from_format`. + +* Removed deprecated `Logger` core extensions (`core_ext/logger.rb`). + +* Removed deprecated `Time#time_with_datetime_fallback`, `Time#utc_time` and + `Time#local_time` in favor of `Time#utc` and `Time#local`. + +* Removed deprecated `Hash#diff` with no replacement. + +* Removed deprecated `Date#to_time_in_current_zone` in favor of `Date#in_time_zone`. + +* Removed deprecated `Proc#bind` with no replacement. + +* Removed deprecated `Array#uniq_by` and `Array#uniq_by!`, use native + `Array#uniq` and `Array#uniq!` instead. + +* Removed deprecated `ActiveSupport::BasicObject`, use + `ActiveSupport::ProxyObject` instead. + +* Removed deprecated `BufferedLogger`, use `ActiveSupport::Logger` instead. + +* Removed deprecated `assert_present` and `assert_blank` methods, use `assert + object.blank?` and `assert object.present?` instead. + +### Deprecations + +* 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` + ([Pull Request](https://github.com/rails/rails/pull/12389)) + +* Deprecated the require path `active_support/core_ext/object/to_json`. Require + `active_support/core_ext/object/json` instead. ([Pull Request](https://github.com/rails/rails/pull/12203)) + +* Deprecated `ActiveSupport::JSON::Encoding::CircularReferenceError`. This feature + has been extracted into the [activesupport-json_encoder](https://github.com/rails/activesupport-json_encoder) + gem. + ([Pull Request](https://github.com/rails/rails/pull/12785) / + [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +* Deprecated `ActiveSupport.encode_big_decimal_as_string` option. This feature has + been extracetd into the [activesupport-json_encoder](https://github.com/rails/activesupport-json_encoder) + gem. + ([Pull Request](https://github.com/rails/rails/pull/13060) / + [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +### Notable changes + +* `ActiveSupport`'s JSON encoder has been rewritten to take advantage of the + JSON gem rather than doing custom encoding in pure-Ruby. + ([Pull Request](https://github.com/rails/rails/pull/12183) / + [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +* Improved compatibility with the JSON gem. + ([Pull Request](https://github.com/rails/rails/pull/12862) / + [More Details](upgrading_ruby_on_rails.html#changes-in-json-handling)) + +* Added `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`. ([Pull Request](https://github.com/rails/rails/pull/12824)) + +* Added `Numeric#in_milliseconds`, like `1.hour.in_milliseconds`, so we can feed + them to JavaScript functions like + `getTime()`. ([Commit](https://github.com/rails/rails/commit/423249504a2b468d7a273cbe6accf4f21cb0e643)) + +* Added `Date#middle_of_day`, `DateTime#middle_of_day` and `Time#middle_of_day` + methods. Also added `midday`, `noon`, `at_midday`, `at_noon` and + `at_middle_of_day` as + aliases. ([Pull Request](https://github.com/rails/rails/pull/10879)) + +* Added `String#remove(pattern)` as a short-hand for the common pattern of + `String#gsub(pattern,'')`. ([Commit](https://github.com/rails/rails/commit/5da23a3f921f0a4a3139495d2779ab0d3bd4cb5f)) + +* Removed 'cow' => 'kine' irregular inflection from default + inflections. ([Commit](https://github.com/rails/rails/commit/c300dca9963bda78b8f358dbcb59cabcdc5e1dc9)) + Credits ------- |