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
Name Status Rails 4 Notes Rails 4 Status Rails 5 Notes Rails 5 Status or notes updated
sidekiq-pro ready

Not dependent on Rails

ready

Not dependent on Rails

10 months ago
connection_pool ready

Not dependent on Rails

ready

Not dependent on Rails

10 months ago
sidekiq-cron ready

works with Activejob (Rails 4.2+) and has been present and working in our app for years.

ready

Probably ready: there are live stories of people using it with rails 5.

10 months ago
better_errors ready

Tested on three projects, it is working with Rails 4.

ready

Ready for Rails 5 - but not sure from what version. Latest version (v2.5.0) runs on 5.2 https://github.com/BetterErrors/better_errors/releases

10 months ago
binding_of_caller ready

Does not depend on Rails.

ready

does not depend on Rails

10 months ago
capybara-screenshot ready

Doesn't depend on rails.

ready

does not depend on Rails

10 months ago
carmen ready

The carmen gem has been split. The carmen gem no longer has any dependencies on Rails. The Rails helpers have been split off into the carmen-rails gem.

ready

does not depend on Rails

10 months ago
carrierwave ready

https://github.com/carrierwaveuploader/carrierwave/blob/master/History.txt#L61

ready

5.1 from v1.1.0, 5.0 from 1.0.0.beta

10 months ago
dalli ready

-

ready

5.2 from v2.7.8, 5.0 from v2.7.6

10 months ago
faraday ready

In use.

ready

does not depend on Rails

10 months ago
foreman ready

-

ready

when not bundled in Gemfile. See https://github.com/ddollar/foreman/issues/688#issuecomment-326615890

10 months ago
heroku_rails_deflate ready

https://github.com/mattolson/heroku_rails_deflate/issues/13

not ready

https://github.com/mattolson/heroku_rails_deflate/pull/24 ; https://github.com/mattolson/heroku_rails_deflate/issues/26#issuecomment-360893277

10 months ago
jbuilder ready

-

ready

5.2 from v2.8.0, 5.1 from v2.6.3, 5.0 from v2.5.0

10 months ago
jquery-rails ready

-

ready

https://github.com/rails/jquery-rails#installation mentions Rails 5.1. See also Taryn's comment

10 months ago
jquery-ui-rails ready

from gem version 4.0.2 (source)

ready

readme mentions Rails 5.0 (https://github.com/jquery-ui-rails/jquery-ui-rails#warning)

10 months ago
launchy ready

does not depend on rails

ready

does not depend on rails

10 months ago
bootstrap-sass ready

-

ready

mentioned in the README

about 1 year ago
capybara ready

https://github.com/jnicklas/capybara/pull/1024

ready

mentioned in the README

about 1 year ago
bootstrap ready

https://github.com/twbs/bootstrap-rubygem

ready

https://github.com/twbs/bootstrap-rubygem

about 1 year ago
mongoid not ready

Version 4 will support Rails 4 but it hasn't been released yet

ready

See https://docs.mongodb.com/mongoid/master/tutorials/mongoid-rails/

about 1 year ago