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Diffstat (limited to 'guides/source/4_2_release_notes.md')
| -rw-r--r-- | guides/source/4_2_release_notes.md | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/guides/source/4_2_release_notes.md b/guides/source/4_2_release_notes.md index 39655447e3..176cdadabf 100644 --- a/guides/source/4_2_release_notes.md +++ b/guides/source/4_2_release_notes.md @@ -63,10 +63,20 @@ TODO: add some technical details New applications generated from Rails 4.2 now comes with the Web Console gem by default. -Web Console is an IRB console available in the browser. In development mode, you -can go to /console and do your work right there. It will also be made available -on all exception pages and allows you to jump between the different points in -the backtrace. +Web Console is a set of debugging tools for your Rails application. It comes +with an interactive console for every error page, a `console` view helper and +VT100 compatible terminal. + +The interactive console on the error pages lets you execute code where the +exception originated. It's quite handy to introspect the state that led to the +error. + +The `console` view helper launches an interactive console with the context of +the view right on the page it's invoked on. + +Finally, you can launch a VT100 terminal that runs `rails console`. If you need +to create or modify existing test data, you can do that straight from the +browser. ### Foreign key support @@ -268,6 +278,13 @@ Please refer to the [Changelog][action-pack] for detailed changes. * Added an option to disable logging of CSRF failures. ([Pull Request](https://github.com/rails/rails/pull/14280)) +* When the Rails server is set to serve static assets, gzip assets will now be + served if the client supports it and a pre-generated gzip file (.gz) is on disk. + By default the asset pipeline generates `.gz` files for all compressible assets. + Serving gzip files minimizes data transfer and speeds up asset requests. Always + [use a CDN](http://guides.rubyonrails.org/asset_pipeline.html#cdns) if you are + serving assets from your Rails server in production. + ([Pull Request](https://github.com/rails/rails/pull/16466)) Action View ------------- |