Our rcov:all task for aggregated RSpec/Cucumber coverage was overhauled extensively. Among other things it now works for Rails 2 and 3 and has an option to ignore shared traits.

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

Prevents you from data breaches and liability risks
Upgrade at your own pace
Works with modern Rubies

Update: Aggregated RSpec/Cucumber test coverage with RCov

Rails Long Term Support