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diff --git a/guides/source/4_1_release_notes.md b/guides/source/4_1_release_notes.md index 5c50ed83ea..dbc151c0ca 100644 --- a/guides/source/4_1_release_notes.md +++ b/guides/source/4_1_release_notes.md @@ -1,16 +1,19 @@ +**DO NOT READ THIS FILE IN GITHUB, GUIDES ARE PUBLISHED IN http://guides.rubyonrails.org.** + Ruby on Rails 4.1 Release Notes =============================== Highlights in Rails 4.1: -* Variants -* Spring -* 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 -[list of commits](https://github.com/rails/rails/commits/master) in the main -Rails repository on GitHub. +These release notes cover only the major changes. To learn about various bug +fixes and changes, please refer to the change logs or check out the [list of +commits](https://github.com/rails/rails/commits/4-1-stable) in the main Rails +repository on GitHub. -------------------------------------------------------------------------------- @@ -22,22 +25,83 @@ 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 -------------- -### Variants +### Spring Application Preloader + +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. + +**Running rake tasks:** -We often want to render different html/json/xml templates for phones, -tablets, and desktop browsers. Variants makes it easy. +``` +bin/rake test:models +``` + +**Running a Rails command:** + +``` +bin/rails console +``` + +**Spring introspection:** + +``` +$ bin/spring status +Spring is running: + + 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 +``` + +Have a look at the +[Spring README](https://github.com/rails/spring/blob/master/README.md) to +see all available features. + +See the [Upgrading Ruby on Rails](upgrading_ruby_on_rails.html#spring) +guide on how to migrate existing applications to use this feature. + +### `config/secrets.yml` + +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. + +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 +``` + +`Rails.application.secrets.some_api_key` returns `SOMEKEY` in the development +environment. + +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. + +### Action Pack Variants + +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`. -You can set the variant in a before_action: +You can set the variant in a `before_action`: ```ruby request.variant = :tablet if request.user_agent =~ /iPad/ @@ -62,46 +126,41 @@ app/views/projects/show.html+tablet.erb app/views/projects/show.html+phone.erb ``` -### Spring +You can also simplify the variants definition using the inline syntax: -New Rails 4.1 applications will ship with "springified" binstubs. This means -that `bin/rails` and `bin/rake` will automatically take advantage preloaded -spring environments. - -**running rake tasks:** - -``` -bin/rake routes +```ruby +respond_to do |format| + format.js { render "trash" } + format.html.phone { redirect_to progress_path } + format.html.none { render "trash" } +end ``` -**running tests:** +### Action Mailer Previews -``` -bin/rake test -bin/rake test test/models -bin/rake test test/models/user_test.rb -``` +Action Mailer previews provide a way to see how emails look by visiting +a special URL that renders them. -**running a console:** +You implement a preview class whose methods return the mail object you'd like +to check: +```ruby +class NotifierPreview < ActionMailer::Preview + def welcome + Notifier.welcome(User.first) + end +end ``` -bin/rails console -``` - -**spring introspection:** -``` -$ bundle exec spring status -Spring is running: +The preview is available in http://localhost:3000/rails/mailers/notifier/welcome, +and a list of them in http://localhost:3000/rails/mailers. - 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 -``` +By default, these preview classes live in `test/mailers/previews`. +This can be configured using the `preview_path` option. -Have a look at the -[Spring README](https://github.com/jonleighton/spring/blob/master/README.md) to -see a all available features. +See its +[documentation](http://api.rubyonrails.org/v4.1.0/classes/ActionMailer/Base.html#class-ActionMailer::Base-label-Previewing+emails) +for a detailed write up. ### Active Record enums @@ -113,30 +172,78 @@ class Conversation < ActiveRecord::Base enum status: [ :active, :archived ] end -conversation.archive! +conversation.archived! conversation.active? # => false conversation.status # => "archived" Conversation.archived # => Relation for all archived Conversations + +Conversation.statuses # => { "active" => 0, "archived" => 1 } ``` -See -[active_record/enum.rb](https://github.com/rails/rails/blob/4-1-stable/activerecord/lib/active_record/enum.rb#L2-L42) +See its +[documentation](http://api.rubyonrails.org/v4.1.0/classes/ActiveRecord/Enum.html) for a detailed write up. -### Application message verifier. +### Message Verifiers + +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. -Create a message verifier that can be used to generate and verify signed -messages in the application. +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: ```ruby -message = Rails.application.message_verifier('salt').generate('my sensible data') -Rails.application.message_verifier('salt').verify(message) -# => 'my sensible data' +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 ``` -Documentation -------------- +### 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 @@ -165,7 +272,7 @@ for detailed changes. ### Notable changes * The [Spring application - preloader](https://github.com/jonleighton/spring) is now installed + preloader](https://github.com/rails/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)) @@ -176,140 +283,20 @@ for detailed changes. * Exposed `MiddlewareStack#unshift` to environment configuration. ([Pull Request](https://github.com/rails/rails/pull/12479)) -* Add `Application#message_verifier` method to return a message +* Added `Application#message_verifier` method to return a message verifier. ([Pull Request](https://github.com/rails/rails/pull/12995)) -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)) +* 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)) +* Introduce `Rails.gem_version` as a convenience method to return + `Gem::Version.new(Rails.version)`, suggesting a more reliable way to perform + version comparison. ([Pull Request](https://github.com/rails/rails/pull/14103)) -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_fromat`. - -* 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)) Action Pack ----------- @@ -330,16 +317,23 @@ for detailed changes. * 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 +* `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)) + * `#url_for` takes a hash with options inside an array. ([Pull Request](https://github.com/rails/rails/pull/9599)) @@ -351,6 +345,39 @@ for detailed changes. * Separated Action View completely from Action Pack. ([Pull Request](https://github.com/rails/rails/pull/11032)) +* Log which keys were affected by deep + munge. ([Pull Request](https://github.com/rails/rails/pull/13813)) + +* New config option `config.action_dispatch.perform_deep_munge` to opt out of + params "deep munging" that was used to address security vulnerability + CVE-2013-0155. ([Pull Request](https://github.com/rails/rails/pull/13188)) + +* New config option `config.action_dispatch.cookies_serializer` for specifying a + serializer for the signed and encrypted cookie jars. (Pull Requests + [1](https://github.com/rails/rails/pull/13692), + [2](https://github.com/rails/rails/pull/13945) / + [More Details](upgrading_ruby_on_rails.html#cookies-serializer)) + +* Added `render :plain`, `render :html` and `render + :body`. ([Pull Request](https://github.com/rails/rails/pull/14062) / + [More Details](upgrading_ruby_on_rails.html#rendering-content-from-string)) + + +Action Mailer +------------- + +Please refer to the +[Changelog](https://github.com/rails/rails/blob/4-1-stable/actionmailer/CHANGELOG.md) +for detailed changes. + +### Notable changes + +* Added mailer previews feature based on 37 Signals mail_view + gem. ([Commit](https://github.com/rails/rails/commit/d6dec7fcb6b8fddf8c170182d4fe64ecfc7b2261)) + +* 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 ------------- @@ -371,14 +398,14 @@ for detailed changes. * Removed deprecated `scope` use without passing a callable object. * Removed deprecated `transaction_joinable=` in favor of `begin_transaction` - with `d:joinable` option. + with a `:joinable` option. * Removed deprecated `decrement_open_transactions`. * Removed deprecated `increment_open_transactions`. * Removed deprecated `PostgreSQLAdapter#outside_transaction?` - methodd. You can use `#transaction_open?` instead. + method. You can use `#transaction_open?` instead. * Removed deprecated `ActiveRecord::Fixtures.find_table_name` in favor of `ActiveRecord::Fixtures.default_fixture_model_name`. @@ -416,6 +443,8 @@ for detailed changes. * Remove implicit join references that were deprecated in 4.0. * Removed `activerecord-deprecated_finders` as a dependency. + Please see [the gem README](https://github.com/rails/activerecord-deprecated_finders#active-record-deprecated-finders) + for more info. * Removed usage of `implicit_readonly`. Please use `readonly` method explicitly to mark records as @@ -425,16 +454,25 @@ for detailed changes. * Deprecated `quoted_locking_column` method, which isn't used anywhere. -* 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)) - * 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 +* Default scopes are no longer overridden by chained conditions. + + Before this change when you defined a `default_scope` in a model + it was overridden by chained conditions in the same field. Now it + is merged like any other scope. [More Details](upgrading_ruby_on_rails.html#changes-on-default-scopes). + * Added `ActiveRecord::Base.to_param` for convenient "pretty" URLs derived from a model's attribute or method. ([Pull Request](https://github.com/rails/rails/pull/12891)) @@ -495,6 +533,196 @@ for detailed changes. 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. ([Pull Request](https://github.com/rails/rails/pull/13629)) + +* `Relation` no longer has mutator methods like `#map!` and `#delete_if`. Convert + to an `Array` by calling `#to_a` before using these methods. ([Pull Request](https://github.com/rails/rails/pull/13314)) + +* `find_in_batches`, `find_each`, `Result#each` and `Enumerable#index_by` now + return an `Enumerator` that can calculate its + size. ([Pull Request](https://github.com/rails/rails/pull/13938)) + +* `scope`, `enum` and Associations now raise on "dangerous" name + conflicts. ([Pull Request](https://github.com/rails/rails/pull/13450), + [Pull Request](https://github.com/rails/rails/pull/13896)) + +* `second` through `fifth` methods act like the `first` + finder. ([Pull Request](https://github.com/rails/rails/pull/13757)) + +* Make `touch` fire the `after_commit` and `after_rollback` + callbacks. ([Pull Request](https://github.com/rails/rails/pull/12031)) + +* Enable partial indexes for `sqlite >= 3.8.0`. + ([Pull Request](https://github.com/rails/rails/pull/13350)) + +* Make `change_column_null` + revertible. ([Commit](https://github.com/rails/rails/commit/724509a9d5322ff502aefa90dd282ba33a281a96)) + +* Added a flag to disable schema dump after migration. This is set to `false` + by default in the production environment for new applications. + ([Pull Request](https://github.com/rails/rails/pull/13948)) + +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. + +* Ability to specify multiple contexts when defining a + validation. ([Pull Request](https://github.com/rails/rails/pull/13754)) + +* `attribute_changed?` now accepts a hash to check if the attribute was changed + `:from` and/or `:to` a given + value. ([Pull Request](https://github.com/rails/rails/pull/13131)) + + +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. + +* Remove deprecated `#filter` method for filter objects, use the corresponding + method instead (e.g. `#before` for a before filter). + +* Removed 'cow' => 'kine' irregular inflection from default + inflections. ([Commit](https://github.com/rails/rails/commit/c300dca9963bda78b8f358dbcb59cabcdc5e1dc9)) + +### 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 extracted 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)) + +* Deprecate custom `BigDecimal` + serialization. ([Pull Request](https://github.com/rails/rails/pull/13911)) + +### 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 duration by stubbing + `Time.now` and `Date.today`. + +* Added `ActiveSupport::Testing::TimeHelpers#travel_back`. This method returns + the current time to the original state, by removing the stubs added by `travel` + and `travel_to`. ([Pull Request](https://github.com/rails/rails/pull/13884)) + +* 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 `Date#all_week/month/quarter/year` for generating date + ranges. ([Pull Request](https://github.com/rails/rails/pull/9685)) + +* Added `Time.zone.yesterday` and + `Time.zone.tomorrow`. ([Pull Request](https://github.com/rails/rails/pull/12822)) + +* Added `String#remove(pattern)` as a short-hand for the common pattern of + `String#gsub(pattern,'')`. ([Commit](https://github.com/rails/rails/commit/5da23a3f921f0a4a3139495d2779ab0d3bd4cb5f)) + +* Added `Hash#compact` and `Hash#compact!` for removing items with nil value + from hash. ([Pull Request](https://github.com/rails/rails/pull/13632)) + +* `blank?` and `present?` commit to return + singletons. ([Commit](https://github.com/rails/rails/commit/126dc47665c65cd129967cbd8a5926dddd0aa514)) + +* 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. ([Pull Request](https://github.com/rails/rails/pull/13341)) + +* Introduce `Module#concerning`: a natural, low-ceremony way to separate + responsibilities within a + class. ([Commit](https://github.com/rails/rails/commit/1eee0ca6de975b42524105a59e0521d18b38ab81)) + +* Added `Object#presence_in` to simplify value whitelisting. + ([Commit](https://github.com/rails/rails/commit/4edca106daacc5a159289eae255207d160f22396)) + + Credits ------- |