On August 15, 2019, Ruby on Rails 6.0 was released. In addition to numerous fixes, the main new features in version 6 include:
- Action Mailbox — routes incoming emails to mailboxes similar to controllers.
- Action Text — allows for storage and editing of rich text in Rails.
- Parallel testing — enables the execution of test suites in parallel. This means tests can be run simultaneously.
- Testing Action Cable — will allow testing the functionality of Action Cable at any level: connections, channels, broadcasts.
Webpacker is enabled by default in Ruby on Rails 6.
The upgrade guide can be found at:
https://guides.rubyonrails.org/upgrading_ruby_on_rails.html
Source: linux.org.ru
