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 unknown for Rails 5

Name Status Rails 4 Notes Rails 4 Status Rails 5 Notes Rails 5 Status or notes updated
aws-sdk ready

does not depend on rails

unknown almost 6 years ago
Axlsx-Rails ready

README: Tested on 4.0

unknown over 5 years ago
babelyoda unknown unknown about 6 years ago
babilu unknown unknown about 6 years ago
babosa ready

It works in our app.

unknown about 5 years ago
backbone-on-rails ready unknown about 6 years ago
backlog unknown unknown about 6 years ago
backup ready

Does not depend on rails

unknown about 6 years ago
badges_engine unknown unknown about 6 years ago
balancir unknown unknown about 6 years ago
bankjob unknown unknown about 6 years ago
barista unknown unknown about 6 years ago
bartt-ssl_requirement not ready

http://rubygems.org/gems/bartt-ssl_requirement

unknown over 5 years ago
base2_cms unknown unknown about 6 years ago
beautiful_scaffold ready

Ok for rails 4 but bugged (> 0.3.0) wait for the stable version.

unknown about 6 years ago
best_in_place unknown unknown about 6 years ago
better_logging not ready

references ActiveSupport::BufferedLogger

unknown over 5 years ago
bitly ready

Does not depend on Rails.

unknown about 6 years ago
bitmask_attributes ready

https://github.com/joelmoss/bitmask_attributes/blob/master/CHANGELOG.rdoc

unknown over 5 years ago
blackjack ready

does not depend on Rails

unknown over 4 years ago