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
keeguon-ransack unknown unknown over 6 years ago
citygrid_airbrake unknown unknown over 6 years ago
poms_client unknown unknown over 6 years ago
rails-showdown unknown unknown over 6 years ago
neoteric-blog unknown unknown over 6 years ago
Skyscraper unknown unknown over 6 years ago
will_paginate_extras unknown unknown over 6 years ago
kajax unknown unknown over 6 years ago
CookiesManager unknown unknown over 6 years ago
groupon-cache-money unknown unknown over 6 years ago
redis-actionpack unknown unknown over 6 years ago
tinymce-rails unknown unknown over 6 years ago
rails-dev-tweaks unknown unknown over 6 years ago
calebhaye-apn_on_rails unknown unknown over 6 years ago
couch_session_store unknown unknown over 6 years ago
iwarshak-formtastic-rails3 unknown unknown over 6 years ago
is_audited unknown unknown over 6 years ago
routing_filter unknown unknown over 6 years ago
browser unknown unknown over 6 years ago
guilleiguaran-actionwebservice unknown unknown over 6 years ago