diff options
Diffstat (limited to 'guides/source/4_0_release_notes.md')
| -rw-r--r-- | guides/source/4_0_release_notes.md | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/guides/source/4_0_release_notes.md b/guides/source/4_0_release_notes.md index dd57787111..52571fab60 100644 --- a/guides/source/4_0_release_notes.md +++ b/guides/source/4_0_release_notes.md @@ -5,7 +5,6 @@ Highlights in Rails 4.0: * Ruby 1.9.3 only * Strong Parameters -* Queue API * Turbolinks * Russian Doll Caching * Asynchronous Mailers @@ -69,6 +68,7 @@ In Rails 4.0, several features have been extracted into gems. You can simply add * Action Caching ([Github](https://github.com/rails/actionpack-action_caching), [Pull Request](https://github.com/rails/rails/pull/7833)) * Page Caching ([Github](https://github.com/rails/actionpack-page_caching), [Pull Request](https://github.com/rails/rails/pull/7833)) * Sprockets ([Github](https://github.com/rails/sprockets-rails)) +* Performance tests ([Github](https://github.com/rails/rails-perftest), [Pull Request](https://github.com/rails/rails/pull/8876)) Documentation ------------- @@ -86,9 +86,9 @@ Please refer to the [Changelog](https://github.com/rails/rails/blob/master/railt * New test locations `test/models`, `test/helpers`, `test/controllers`, and `test/mailers`. Corresponding rake tasks added as well. ([Pull Request](https://github.com/rails/rails/pull/7878)) -* Threadsafe on by default +* Your app's executables now live in the `bin/` dir. Run `rake rails:update:bin` to get `bin/bundle`, `bin/rails`, and `bin/rake`. -* Add `Rails.queue` for processing jobs in the background. +* Threadsafe on by default ### Deprecations @@ -103,8 +103,6 @@ Please refer to the [Changelog](https://github.com/rails/rails/blob/master/actio ### Notable changes -* Asynchronously send messages via the Rails Queue. ([Pull Request](https://github.com/rails/rails/pull/6839)) - ### Deprecations Active Model @@ -147,6 +145,7 @@ Please refer to the [Changelog](https://github.com/rails/rails/blob/master/activ * BufferedLogger is deprecated. Use ActiveSupport::Logger, or the logger from Ruby stdlib. +* Deprecate `assert_present` and `assert_blank` in favor of `assert object.blank?` and `assert object.present?` Action Pack ----------- @@ -155,6 +154,8 @@ Please refer to the [Changelog](https://github.com/rails/rails/blob/master/railt ### Notable changes +* Change the stylesheet of exception pages for development mode. Additionally display also the line of code and fragment that raised the exception in all exceptions pages. + ### Deprecations @@ -165,6 +166,19 @@ Please refer to the [Changelog](https://github.com/rails/rails/blob/master/railt ### Notable changes +* Improve ways to write `change` migrations, making the old `up` & `down` methods no longer necessary. + + * The methods `drop_table` and `remove_column` are now reversible, as long as the necessary information is given. + The method `remove_column` used to accept multiple column names; instead use `remove_columns` (which is not revertible). + The method `change_table` is also reversible, as long as its block doesn't call `remove`, `change` or `change_default` + + * New method `reversible` makes it possible to specify code to be run when migrating up or down. + See the [Guide on Migration](https://github.com/rails/rails/blob/master/guides/source/migrations.md#using-the-reversible-method) + + * New method `revert` will revert a whole migration or the given block. + If migrating down, the given migration / block is run normally. + See the [Guide on Migration](https://github.com/rails/rails/blob/master/guides/source/migrations.md#reverting-previous-migrations) + * Adds some metadata columns to `schema_migrations` table. * `migrated_at` |