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diff --git a/guides/source/6_0_release_notes.md b/guides/source/6_0_release_notes.md
index e6fb15c09c..cf8385faa3 100644
--- a/guides/source/6_0_release_notes.md
+++ b/guides/source/6_0_release_notes.md
@@ -77,10 +77,73 @@ Please refer to the [Changelog][railties] for detailed changes.
### Removals
+* Remove deprecated `after_bundle` helper inside plugins templates.
+ ([Commit](https://github.com/rails/rails/commit/4d51efe24e461a2a3ed562787308484cd48370c7))
+
+* Remove deprecated support to `config.ru` that uses the application
+ class as argument of `run`.
+ ([Commit](https://github.com/rails/rails/commit/553b86fc751c751db504bcbe2d033eb2bb5b6a0b))
+
+* Remove deprecated `environment` argument from the rails commands.
+ ([Commit](https://github.com/rails/rails/commit/e20589c9be09c7272d73492d4b0f7b24e5595571))
+
+* Remove deprecated `capify!` method in generators and templates.
+ ([Commit](https://github.com/rails/rails/commit/9d39f81d512e0d16a27e2e864ea2dd0e8dc41b17))
+
+* Remove deprecated `config.secret_token`.
+ ([Commit](https://github.com/rails/rails/commit/46ac5fe69a20d4539a15929fe48293e1809a26b0))
+
### Deprecations
+* Deprecate passing Rack server name as a regular argument to `rails server`.
+ ([Pull Request](https://github.com/rails/rails/pull/32058))
+
+* Deprecate support for using `HOST` environment to specify server IP.
+ ([Pull Request](https://github.com/rails/rails/pull/32540))
+
+* Deprecate accessing hashes returned by `config_for` by non-symbol keys.
+ ([Pull Request](https://github.com/rails/rails/pull/35198))
+
### Notable changes
+* Add an explicit option `--using` or `-u` for specifying the server for the
+ `rails server` command.
+ ([Pull Request](https://github.com/rails/rails/pull/32058))
+
+* Add ability to see the output of `rails routes` in expanded format.
+ ([Pull Request](https://github.com/rails/rails/pull/32130))
+
+* Run the seed database task using inline Active Job adapter.
+ ([Pull Request](https://github.com/rails/rails/pull/34953))
+
+* Add a command `rails db:system:change` to change the database of the application.
+ ([Pull Request](https://github.com/rails/rails/pull/34832))
+
+* Add `rails test:channels` command to test only Action Cable channels.
+ ([Pull Request](https://github.com/rails/rails/pull/34947))
+
+* Introduce guard against DNS rebinding attacks.
+ ([Pull Request](https://github.com/rails/rails/pull/33145))
+
+* Add ability to abort on failure while running generator commands.
+ ([Pull Request](https://github.com/rails/rails/pull/34420))
+
+* Make Webpacker the default JavaScript compiler for Rails 6.
+ ([Pull Request](https://github.com/rails/rails/pull/33079))
+
+* Add multiple database support for `rails db:migrate:status` command.
+ ([Pull Request](https://github.com/rails/rails/pull/34137))
+
+* Add ability to use different migration paths from multiple databases in
+ the generators.
+ ([Pull Request](https://github.com/rails/rails/pull/34021))
+
+* Add support for multi environment credentials.
+ ([Pull Request](https://github.com/rails/rails/pull/33521))
+
+* Make `null_store` as default cache store in test environment.
+ ([Pull Request](https://github.com/rails/rails/pull/33773))
+
Action Cable
------------
@@ -115,10 +178,78 @@ Please refer to the [Changelog][action-pack] for detailed changes.
### Removals
+* Remove deprecated `fragment_cache_key` helper in favor of `combined_fragment_cache_key`.
+ ([Commit](https://github.com/rails/rails/commit/e70d3df7c9b05c129b0fdcca57f66eca316c5cfc))
+
+* Remove deprecated methods in `ActionDispatch::TestResponse`:
+ `#success?` in favor of `#successful?`, `#missing?` in favor of `#not_found?`,
+ `#error?` in favor of `#server_error?`
+ ([Commit](https://github.com/rails/rails/commit/13ddc92e079e59a0b894e31bf5bb4fdecbd235d1))
+
### Deprecations
+* Deprecate `ActionDispatch::Http::ParameterFilter` in favor of `ActiveSupport::ParameterFilter`.
+ ([Pull Request](https://github.com/rails/rails/pull/34039))
+
+* Deprecate controller level `force_ssl` in favor of `config.force_ssl`.
+ ([Pull Request](https://github.com/rails/rails/pull/32277))
+
### Notable changes
+* Raise an `ArgumentError` if a resource param contains a colon.
+ ([Pull Request](https://github.com/rails/rails/pull/35236))
+
+* Allow `ActionDispatch::SystemTestCase.driven_by` to be called with a block
+ to define specific browser capabilities.
+ ([Pull Request](https://github.com/rails/rails/pull/35081))
+
+* Add `ActionDispatch::HostAuthorization` middleware that guards against DNS rebinding
+ attacks.
+ ([Pull Request](https://github.com/rails/rails/pull/33145))
+
+* Allow the use of `parsed_body` in `ActionController::TestCase`.
+ ([Pull Request](https://github.com/rails/rails/pull/34717))
+
+* Raise an `ArgumentError` when multiple root routes exists in the same context
+ without `as:` naming specifications.
+ ([Pull Request](https://github.com/rails/rails/pull/34494))
+
+* Allow the use of `#rescue_from` for handling parameter parsing errors.
+ ([Pull Request](https://github.com/rails/rails/pull/34341))
+
+* Add `ActionController::Parameters#each_value` for iterating through parameters.
+ ([Pull Request](https://github.com/rails/rails/pull/33979))
+
+* Encode Content-Disposition filenames on `send_data` and `send_file`.
+ ([Pull Request](https://github.com/rails/rails/pull/33829))
+
+* Expose `ActionController::Parameters#each_key`.
+ ([Pull Request](https://github.com/rails/rails/pull/33758))
+
+* Add purpose metadata to signed/encrypted cookies to prevent copying the value of
+ cookies into one another.
+ ([Pull Request](https://github.com/rails/rails/pull/32937))
+
+* Raise `ActionController::RespondToMismatchError` for conflicting `respond_to` invocations.
+ ([Pull Request](https://github.com/rails/rails/pull/33446))
+
+* Add an explicit error page for when a template is missing for a request format.
+ ([Pull Request](https://github.com/rails/rails/pull/29286))
+
+* Introduce `ActionDispatch::DebugExceptions.register_interceptor`, a way to hook into
+ DebugExceptions and process the exception, before being rendered.
+ ([Pull Request](https://github.com/rails/rails/pull/23868))
+
+* Output only one Content-Security-Policy nonce header value per request.
+ ([Pull Request](https://github.com/rails/rails/pull/32602))
+
+* Add a module specifically for the Rails default headers configuration
+ that can be explicitly included in controllers.
+ ([Pull Request](https://github.com/rails/rails/pull/32484))
+
+* Add `#dig` to `ActionDispatch::Request::Session`.
+ ([Pull Request](https://github.com/rails/rails/pull/32446))
+
Action View
-----------
@@ -126,10 +257,63 @@ Please refer to the [Changelog][action-view] for detailed changes.
### Removals
+* Remove deprecated `image_alt` helper.
+ ([Commit](https://github.com/rails/rails/commit/60c8a03c8d1e45e48fcb1055ba4c49ed3d5ff78f))
+
+* Remove an empty `RecordTagHelper` module from which the functionality
+ was already moved to the `record_tag_helper` gem.
+ ([Commit](https://github.com/rails/rails/commit/5c5ddd69b1e06fb6b2bcbb021e9b8dae17e7cb31))
+
### Deprecations
+* Deprecate `ActionView::Template.finalize_compiled_template_methods` with
+ no replacement.
+ ([Pull Request](https://github.com/rails/rails/pull/35036))
+
+* Deprecate `config.action_view.finalize_compiled_template_methods` with
+ no replacement.
+ ([Pull Request](https://github.com/rails/rails/pull/35036))
+
+* Deprecate calling private model methods from the `options_from_collection_for_select` view helper.
+ ([Pull Request](https://github.com/rails/rails/pull/33547))
+
### Notable changes
+* Clear ActionView cache in development only on file changes, speeding up
+ development mode.
+ ([Pull Request](https://github.com/rails/rails/pull/35629))
+
+* Move all of the Rails npm packages into a `@rails` scope.
+ ([Pull Request](https://github.com/rails/rails/pull/34905))
+
+* Only accept formats from registered Mime types.
+ ([Pull Request](https://github.com/rails/rails/pull/35604), [Pull Request](https://github.com/rails/rails/pull/35753))
+
+* Add allocations to the template and partial rendering server output.
+ ([Pull Request](https://github.com/rails/rails/pull/34136))
+
+* Add a `year_format` option to `date_select` tag, making it possible to
+ customize year names.
+ ([Pull Request](https://github.com/rails/rails/pull/32190))
+
+* Add a `nonce: true` option for `javascript_include_tag` helper to
+ support automatic nonce generation for a Content Security Policy.
+ ([Pull Request](https://github.com/rails/rails/pull/32607))
+
+* Add a `action_view.finalize_compiled_template_methods` configuration to disable or
+ enable `ActionView::Template` finalizers.
+ ([Pull Request](https://github.com/rails/rails/pull/32418))
+
+* Extract the JS `confirm` call to its own, overridable method in `rails_ujs`.
+ ([Pull Request](https://github.com/rails/rails/pull/32404))
+
+* Add a `action_controller.default_enforce_utf8` configuration option to handle
+ enforcing UTF-8 encoding. This defaults to `false`.
+ ([Pull Request](https://github.com/rails/rails/pull/32125))
+
+* Add I18n key style support for locale keys to submit tags.
+ ([Pull Request](https://github.com/rails/rails/pull/26799))
+
Action Mailer
-------------
@@ -139,8 +323,41 @@ Please refer to the [Changelog][action-mailer] for detailed changes.
### Deprecations
+* Deprecate `ActionMailer::Base.receive` in favor of Action Mailbox.
+ ([Commit](https://github.com/rails/rails/commit/e3f832a7433a291a51c5df397dc3dd654c1858cb))
+
+* Deprecate `DeliveryJob` and `Parameterized::DeliveryJob` in favor of
+ `MailDeliveryJob`.
+ ([Pull Request](https://github.com/rails/rails/pull/34591))
+
### Notable changes
+* Add `MailDeliveryJob` for delivering both regular and parameterized mail.
+ ([Pull Request](https://github.com/rails/rails/pull/34591))
+
+* Allow custom email delivery jobs to work with the Action Mailer test assertions.
+ ([Pull Request](https://github.com/rails/rails/pull/34339))
+
+* Allow specifying a template name for multipart emails with blocks instead of
+ using just the action name.
+ ([Pull Request](https://github.com/rails/rails/pull/22534))
+
+* Add `perform_deliveries` to payload of `deliver.action_mailer` notification.
+ ([Pull Request](https://github.com/rails/rails/pull/33824))
+
+* Improve the logging message when `perform_deliveries` is false to indicate
+ that sending of emails was skipped.
+ ([Pull Request](https://github.com/rails/rails/pull/33824))
+
+* Allow calling `assert_enqueued_email_with` without block.
+ ([Pull Request](https://github.com/rails/rails/pull/33258))
+
+* Perform the enqueued mail delivery jobs in the `assert_emails` block.
+ ([Pull Request](https://github.com/rails/rails/pull/32231))
+
+* Allow `ActionMailer::Base` to unregister observers and interceptors.
+ ([Pull Request](https://github.com/rails/rails/pull/32207))
+
Active Record
-------------
@@ -148,10 +365,237 @@ Please refer to the [Changelog][active-record] for detailed changes.
### Removals
+* Remove deprecated `#set_state` from the transaction object.
+ ([Commit](https://github.com/rails/rails/commit/6c745b0c5152a4437163a67707e02f4464493983))
+
+* Remove deprecated `#supports_statement_cache?` from the database adapters.
+ ([Commit](https://github.com/rails/rails/commit/5f3ed8784383fb4eb0f9959f31a9c28a991b7553))
+
+* Remove deprecated `#insert_fixtures` from the database adapters.
+ ([Commit](https://github.com/rails/rails/commit/400ba786e1d154448235f5f90183e48a1043eece))
+
+* Remove deprecated `ActiveRecord::ConnectionAdapters::SQLite3Adapter#valid_alter_table_type?`.
+ ([Commit](https://github.com/rails/rails/commit/45b4d5f81f0c0ca72c18d0dea4a3a7b2ecc589bf))
+
+* Remove support for passing the column name to `sum` when a block is passed.
+ ([Commit](https://github.com/rails/rails/commit/91ddb30083430622188d76eb9f29b78131df67f9))
+
+* Remove support for passing the column name to `count` when a block is passed.
+ ([Commit](https://github.com/rails/rails/commit/67356f2034ab41305af7218f7c8b2fee2d614129))
+
+* Remove support for delegation of missing methods in a relation to arel.
+ ([Commit](https://github.com/rails/rails/commit/d97980a16d76ad190042b4d8578109714e9c53d0))
+
+* Remove support for delegating missing methods in a relation to private methods of the class.
+ ([Commit](https://github.com/rails/rails/commit/a7becf147afc85c354e5cfa519911a948d25fc4d))
+
+* Remove support for specifying a timestamp name for `#cache_key`.
+ ([Commit](https://github.com/rails/rails/commit/0bef23e630f62e38f20b5ae1d1d5dbfb087050ea))
+
+* Remove deprecated `ActiveRecord::Migrator.migrations_path=`.
+ ([Commit](https://github.com/rails/rails/commit/90d7842186591cae364fab3320b524e4d31a7d7d))
+
+* Remove deprecated `expand_hash_conditions_for_aggregates`.
+ ([Commit](https://github.com/rails/rails/commit/27b252d6a85e300c7236d034d55ec8e44f57a83e))
+
+
### Deprecations
+* Deprecate mismatched case-sensitivity collation comparisons for uniqueness validator.
+ ([Commit](https://github.com/rails/rails/commit/9def05385f1cfa41924bb93daa187615e88c95b9))
+
+* Deprecate using class level querying methods if the receiver scope has leaked.
+ ([Pull Request](https://github.com/rails/rails/pull/35280))
+
+* Deprecate `config.activerecord.sqlite3.represent_boolean_as_integer`.
+ ([Commit](https://github.com/rails/rails/commit/f59b08119bc0c01a00561d38279b124abc82561b))
+
+* Deprecate passing `migrations_paths` to `connection.assume_migrated_upto_version`.
+ ([Commit](https://github.com/rails/rails/commit/c1b14aded27e063ead32fa911aa53163d7cfc21a))
+
+* Deprecate `ActiveRecord::Result#to_hash` in favor of `ActiveRecord::Result#to_a`.
+ ([Commit](https://github.com/rails/rails/commit/16510d609c601aa7d466809f3073ec3313e08937))
+
+* Deprecate methods in `DatabaseLimits`: `column_name_length`, `table_name_length`,
+ `columns_per_table`, `indexes_per_table`, `columns_per_multicolumn_index`,
+ `sql_query_length`, and `joins_per_query`.
+ ([Commit](https://github.com/rails/rails/commit/e0a1235f7df0fa193c7e299a5adee88db246b44f))
+
+* Deprecate `update_attributes`/`!` in favor of `update`/`!`.
+ ([Commit](https://github.com/rails/rails/commit/5645149d3a27054450bd1130ff5715504638a5f5))
+
### Notable changes
+* Bump the minimum sqlite3 version to 1.4.
+ ([Pull Request](https://github.com/rails/rails/pull/35844))
+
+* Add `rails db:prepare` to create a database if it doesn't exist, and run its migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/35768))
+
+* Add `after_save_commit` callback as shortcut for `after_commit :hook, on: [ :create, :update ]`.
+ ([Pull Request](https://github.com/rails/rails/pull/35804))
+
+* Add `ActiveRecord::Relation#extract_associated` for extracting associated records from a relation.
+ ([Pull Request](https://github.com/rails/rails/pull/35784))
+
+* Add `ActiveRecord::Relation#annotate` for adding SQL comments to ActiveRecord::Relation queries.
+ ([Pull Request](https://github.com/rails/rails/pull/35617))
+
+* Add support for setting Optimizer Hints on databases.
+ ([Pull Request](https://github.com/rails/rails/pull/35615))
+
+* Add `insert_all`/`insert_all!`/`upsert_all` methods for doing bulk inserts.
+ ([Pull Request](https://github.com/rails/rails/pull/35631))
+
+* Add `rails db:seed:replant` that truncates tables of each database
+ for ther current environment and loads the seeds.
+ ([Pull Request](https://github.com/rails/rails/pull/34779))
+
+* Add `reselect` method, which is a short-hand for `unscope(:select).select(fields)`.
+ ([Pull Request](https://github.com/rails/rails/pull/33611))
+
+* Add negative scopes for all enum values.
+ ([Pull Request](https://github.com/rails/rails/pull/35381))
+
+* Add `#destroy_by` and `#delete_by` for conditional removals.
+ ([Pull Request](https://github.com/rails/rails/pull/35316))
+
+* Add the ability to automatically switch database connections.
+ ([Pull Request](https://github.com/rails/rails/pull/35073))
+
+* Add the ability to prevent writes to a database for the duration of a block.
+ ([Pull Request](https://github.com/rails/rails/pull/34505))
+
+* Add an API for switching connections to support multiple databases.
+ ([Pull Request](https://github.com/rails/rails/pull/34052))
+
+* Make timestamps with precision the default for migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/34970))
+
+* Support `:size` option to change text and blob size in MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/35071))
+
+* Set both the foreign key and the foreign type columns to NULL for
+ polymorphic associations on `dependent: :nullify` strategy.
+ ([Pull Request](https://github.com/rails/rails/pull/28078))
+
+* Allow a permitted instance of `ActionController::Parameters` to be passed as an
+ argument to `ActiveRecord::Relation#exists?`.
+ ([Pull Request](https://github.com/rails/rails/pull/34891))
+
+* Add support in `#where` for endless ranges introduced in Ruby 2.6.
+ ([Pull Request](https://github.com/rails/rails/pull/34906))
+
+* Make `ROW_FORMAT=DYNAMIC` a default create table option for MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/34742))
+
+* Add the ability to disable scopes generated by `ActiveRecord.enum`.
+ ([Pull Request](https://github.com/rails/rails/pull/34605/files))
+
+* Make implicit ordering configurable for a column.
+ ([Pull Request](https://github.com/rails/rails/pull/34480))
+
+* Bump the minimum PostgreSQL version to 9.3, dropping support for 9.1 and 9.2.
+ ([Pull Request](https://github.com/rails/rails/pull/34520))
+
+* Make the values of an enum frozen, raising an error when attempting to modify them.
+ ([Pull Request](https://github.com/rails/rails/pull/34517))
+
+* Make the SQL of `ActiveRecord::StatementInvalid` errors its own error property
+ and include SQL binds as a separate error property.
+ ([Pull Request](https://github.com/rails/rails/pull/34468))
+
+* Add an `:if_not_exists` option to `create_table`.
+ ([Pull Request](https://github.com/rails/rails/pull/31382))
+
+* Add support for multiple databases to `rails db:schema:cache:dump`
+ and `rails db:schema:cache:clear`.
+ ([Pull Request](https://github.com/rails/rails/pull/34181))
+
+* Add support for hash and url configs in database hash of `ActiveRecord::Base.connected_to`.
+ ([Pull Request](https://github.com/rails/rails/pull/34196))
+
+* Add support for default expressions and expression indexes for MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/34307))
+
+* Add an `index` option for `change_table` migration helpers.
+ ([Pull Request](https://github.com/rails/rails/pull/23593))
+
+* Fix `transaction` reverting for migrations. Previously, commands inside of a `transaction`
+ in a reverted migration ran uninverted. This change fixes that.
+ ([Pull Request](https://github.com/rails/rails/pull/31604))
+
+* Allow `ActiveRecord::Base.configurations=` to be set with a symbolized hash.
+ ([Pull Request](https://github.com/rails/rails/pull/33968))
+
+* Fix the counter cache to only update if the record is actually saved.
+ ([Pull Request](https://github.com/rails/rails/pull/33913))
+
+* Add expression indexes support for the SQLite adapter.
+ ([Pull Request](https://github.com/rails/rails/pull/33874))
+
+* Allow subclasses to redefine autosave callbacks for associated records.
+ ([Pull Request](https://github.com/rails/rails/pull/33378))
+
+* Bump the minimum MySQL version to 5.5.8.
+ ([Pull Request](https://github.com/rails/rails/pull/33853))
+
+* Use the utf8mb4 character set by default in MySQL.
+ ([Pull Request](https://github.com/rails/rails/pull/33608))
+
+* Add the ability to filter out sensitive data in `#inspect`
+ ([Pull Request](https://github.com/rails/rails/pull/33756), [Pull Request](https://github.com/rails/rails/pull/34208))
+
+* Change `ActiveRecord::Base.configurations` to return an object instead of a hash.
+ ([Pull Request](https://github.com/rails/rails/pull/33637))
+
+* Add database configuration to disable advisory locks.
+ ([Pull Request](https://github.com/rails/rails/pull/33691))
+
+* Update SQLite3 adapter `alter_table` method to restore foreign keys.
+ ([Pull Request](https://github.com/rails/rails/pull/33585))
+
+* Allow the `:to_table` option of `remove_foreign_key` to be invertible.
+ ([Pull Request](https://github.com/rails/rails/pull/33530))
+
+* Fix default value for mysql time types with specified precision.
+ ([Pull Request](https://github.com/rails/rails/pull/33280))
+
+* Fix the `touch` option to behave consistently with `Persistence#touch` method.
+ ([Pull Request](https://github.com/rails/rails/pull/33107))
+
+* Raise an exception for duplicate column definitions in Migrations.
+ ([Pull Request](https://github.com/rails/rails/pull/33029))
+
+* Bump the minimum SQLite version to 3.8.
+ ([Pull Request](https://github.com/rails/rails/pull/32923))
+
+* Fix parent records to not get saved with duplicate children records.
+ ([Pull Request](https://github.com/rails/rails/pull/32952))
+
+* Ensure `Associations::CollectionAssociation#size` and `Associations::CollectionAssociation#empty?`
+ use loaded association ids if present.
+ ([Pull Request](https://github.com/rails/rails/pull/32617))
+
+* Add support to preload associations of polymorphic associations when not all the records have the requested associations.
+ ([Commit](https://github.com/rails/rails/commit/75ef18c67c29b1b51314b6c8a963cee53394080b))
+
+* Add `touch_all` method to `ActiveRecord::Relation`.
+ ([Pull Request](https://github.com/rails/rails/pull/31513))
+
+* Add `ActiveRecord::Base.base_class?` predicate.
+ ([Pull Request](https://github.com/rails/rails/pull/32417))
+
+* Add custom prefix/suffix options to `ActiveRecord::Store.store_accessor`.
+ ([Pull Request](https://github.com/rails/rails/pull/32306))
+
+* Add `ActiveRecord::Base.create_or_find_by`/`!` to deal with the SELECT/INSERT race condition in
+ `ActiveRecord::Base.find_or_create_by`/`!` by leaning on unique constraints in the database.
+ ([Pull Request](https://github.com/rails/rails/pull/31989))
+
+* Add `Relation#pick` as short-hand for single-value plucks.
+ ([Pull Request](https://github.com/rails/rails/pull/31941))
+
Active Storage
--------------
@@ -163,6 +607,10 @@ Please refer to the [Changelog][active-storage] for detailed changes.
### Notable changes
+* Updating an attached model via `update` or `update!` with, say,
+ `@user.update!(images: [ … ])` now replaces the existing images instead of merely adding to them.
+ ([Pull Request](https://github.com/rails/rails/pull/33303))
+
Active Model
------------
@@ -174,6 +622,42 @@ Please refer to the [Changelog][active-model] for detailed changes.
### Notable changes
+* Add a configuration option to customize format of the `ActiveModel::Errors#full_message`.
+ ([Pull Request](https://github.com/rails/rails/pull/32956))
+
+* Add support for configuring attribute name for `has_secure_password`.
+ ([Pull Request](https://github.com/rails/rails/pull/26764))
+
+* Add `#slice!` method to `ActiveModel::Errors`.
+ ([Pull Request](https://github.com/rails/rails/pull/34489))
+
+* Add `ActiveModel::Errors#of_kind?` to check presence of a specific error.
+ ([Pull Request](https://github.com/rails/rails/pull/34866))
+
+* Fix `ActiveModel::Serializers::JSON#as_json` method for timestamps.
+ ([Pull Request](https://github.com/rails/rails/pull/31503))
+
+* Fix numericality validator to still use value before type cast except Active Record.
+ ([Pull Request](https://github.com/rails/rails/pull/33654))
+
+* Fix numericality equality validation of `BigDecimal` and `Float`
+ by casting to `BigDecimal` on both ends of the validation.
+ ([Pull Request](https://github.com/rails/rails/pull/32852))
+
+* Fix year value when casting a multiparameter time hash.
+ ([Pull Request](https://github.com/rails/rails/pull/34990))
+
+* Type cast falsy boolean symbols on boolean attribute as false.
+ ([Pull Request](https://github.com/rails/rails/pull/35794))
+
+* Return correct date while converting parameters in `value_from_multiparameter_assignment`
+ for `ActiveModel::Type::Date`.
+ ([Pull Request](https://github.com/rails/rails/pull/29651))
+
+* Fall back to parent locale before falling back to the `:errors` namespace while fetching
+ error translations.
+ ([Pull Request](https://github.com/rails/rails/pull/35424))
+
Active Support
--------------
@@ -192,10 +676,56 @@ Please refer to the [Changelog][active-job] for detailed changes.
### Removals
+* Remove support for Qu gem.
+ ([Pull Request](https://github.com/rails/rails/pull/32300))
+
### Deprecations
### Notable changes
+* Add support for custom serializers for Active Job arguments.
+ ([Pull Request](https://github.com/rails/rails/pull/30941))
+
+* Add support for executing Active Jobs in the timezone in which
+ they were enqueued.
+ ([Pull Request](https://github.com/rails/rails/pull/32085))
+
+* Allow passing multiple exceptions to `retry_on`/`discard_on`.
+ ([Commit](https://github.com/rails/rails/commit/3110caecbebdad7300daaf26bfdff39efda99e25))
+
+* Allow calling `assert_enqueued_with` and `assert_enqueued_email_with` without a block.
+ ([Pull Request](https://github.com/rails/rails/pull/33258))
+
+* Wrap the notifications for `enqueue` and `enqueue_at` in the `around_enqueue`
+ callback instead of `after_enqueue` callback.
+ ([Pull Request](https://github.com/rails/rails/pull/33171))
+
+* Allow calling `perform_enqueued_jobs` without a block.
+ ([Pull Request](https://github.com/rails/rails/pull/33626))
+
+* Allow calling `assert_performed_with` without a block.
+ ([Pull Request](https://github.com/rails/rails/pull/33635))
+
+* Add `:queue` option to job assertions and helpers.
+ ([Pull Request](https://github.com/rails/rails/pull/33635))
+
+* Add hooks to Active Job around retries and discards.
+ ([Pull Request](https://github.com/rails/rails/pull/33751))
+
+* Add a way to test for subset of arguments when performing jobs.
+ ([Pull Request](https://github.com/rails/rails/pull/33995))
+
+* Include deserialized arguments in jobs returned by Active Job
+ test helpers.
+ ([Pull Request](https://github.com/rails/rails/pull/34204))
+
+* Allow Active Job assertion helpers to accept Proc for `only`
+ keyword.
+ ([Pull Request](https://github.com/rails/rails/pull/34339))
+
+* Drop microseconds and nanoseconds from the job arguments in assertion helpers.
+ ([Pull Request](https://github.com/rails/rails/pull/35713))
+
Ruby on Rails Guides
--------------------
@@ -203,11 +733,20 @@ Please refer to the [Changelog][guides] for detailed changes.
### Notable changes
+* Add a section about troubleshooting of autoloading constants.
+ ([Commit](https://github.com/rails/rails/commit/c03bba4f1f03bad7dc034af555b7f2b329cf76f5))
+
+* Add Action Mailbox Basics guide.
+ ([Pull Request](https://github.com/rails/rails/pull/34812))
+
+* Add Action Text Overview guide.
+ ([Pull Request](https://github.com/rails/rails/pull/34878))
+
Credits
-------
See the
-[full list of contributors to Rails](http://contributors.rubyonrails.org/)
+[full list of contributors to Rails](https://contributors.rubyonrails.org/)
for the many people who spent many hours making Rails, the stable and robust
framework it is. Kudos to all of them.