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Diffstat (limited to 'guides/source/4_2_release_notes.md')
| -rw-r--r-- | guides/source/4_2_release_notes.md | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/guides/source/4_2_release_notes.md b/guides/source/4_2_release_notes.md index 5aed0c9358..19d61e6f3f 100644 --- a/guides/source/4_2_release_notes.md +++ b/guides/source/4_2_release_notes.md @@ -177,6 +177,21 @@ class UsersController < ApplicationController end ``` +### Default host for `rails server` + +Due to a [change in Rack](https://github.com/rack/rack/commit/28b014484a8ac0bbb388e7eaeeef159598ec64fc), +`rails server` now listens on `localhost` instead of `0.0.0.0` by default. This +should have minimal impact on the standard development workflow as both http://127.0.0.1:3000 +and http://localhost:3000 would continue to work as before on your own machine. + +However, with this change you would no longer be able to access the Rails server +from a different machine (e.g. your development environment is in a virtual +machine and you would like to access it from the host machine), you would need +to start the server with `rails server -b 0.0.0.0` to restore the old behavior. + +If you do this, be sure to configure your firewall properly such that only +trusted machines on your network can access your development server. + ### Production logging The default log level in the `production` environment is now `:debug`. This @@ -322,7 +337,7 @@ Please refer to the [Changelog][railties] for detailed changes. namespace: my_app_development # config/production.rb - MyApp::Application.configure do + Rails.application.configure do config.middleware.use ExceptionNotifier, config_for(:exception_notification) end ``` |