Is a gem ready for Rails 4 or 5?

Rails 4: 615 ready, 38 not ready, and 433 unknown
Rails 5: 163 ready, 11 not ready, and 912 unknown

Gems ready for Rails 5

Name Status Rails 4 Notes Rails 4 Status Rails 5 Notes Rails 5 Status or notes updated
xeroizer ready

Been running on our 4.2 app for some time

ready

There is a closed "Not working on Rails 5" issue here: https://github.com/waynerobinson/xeroizer/issues/317 So i assume from this that it is now working on 5

11 months ago
yard ready

does not depend on Rails

ready

does not depend on Rails

over 1 year ago
zendesk_api ready

Been working on our Rails 4.2 app for some time

ready

Not dependent on Rails

11 months ago