Is a gem ready for Rails 4 or 5?

Rails 4: 583 ready, 38 not ready, and 435 unknown
Rails 5: 95 ready, 10 not ready, and 951 unknown
Name Status Rails 4 Notes Rails 4 Status Rails 5 Notes Rails 5 Status or notes updated
bootstrap-sass ready

-

ready

mentioned in the README

about 1 month ago
capybara ready

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

ready

mentioned in the README

about 1 month ago
bootstrap ready

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

ready

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

about 2 months 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/

2 months ago
grouped_validations not ready

https://github.com/adzap/grouped_validations/issues/11

not ready

Not ready for Rails 4

6 months ago
audited-activerecord ready

since gem version 4.1

ready

from gem version 4

7 months ago
audited ready

-

ready

from gem version 4

7 months ago
wice_grid ready

Ready for rails 4

ready

with this fork https://github.com/patricklindsay/wice_grid (see https://github.com/leikind/wice_grid/commit/a8080a7ddeda45c7719132fc634ad3313f77e730)

7 months ago
shoulda-matchers ready

ready since gem version 2.4.0 (source)

not ready

will be ready in version 4.0, see https://git.io/vplw7

8 months ago
active_model_serializers ready

-

ready

from https://rubyplus.com/articles/4021-ActiveModelSerializer-Basics-in-Rails-5

8 months ago
yard ready

does not depend on Rails

ready

does not depend on Rails

8 months ago
haml_coffee_assets ready

see https://github.com/emilioforrer/haml_coffee_assets/blob/master/.travis.yml

ready

see https://github.com/emilioforrer/haml_coffee_assets/blob/master/.travis.yml

8 months ago
meta-tags ready

Using gem 'meta-tags', '1.5.0', require: 'meta_tags' (source)

ready

tested up to 5.1 (from https://github.com/kpumuk/meta-tags#ruby-on-rails)

9 months ago
webpacker ready

with Rails 4.2+

ready

It's designed to work with Rails 5.1+

9 months ago
test ready

does not depend on Rails

ready

does not depend on Rails

9 months ago
redis-rails ready

_

ready

since version 5.0.0, see https://github.com/redis-store/redis-rails/blob/master/CHANGELOG.md#500

9 months ago
activerecord-postgresql-extensions not ready

https://github.com/dark-panda/activerecord-postgresql-extensions/issues/5

not ready

https://github.com/dark-panda/activerecord-postgresql-extensions/issues/9

9 months ago
react_on_rails unknown ready

https://github.com/shakacode/react_on_rails/blob/master/CHANGELOG.md#802---2017-06-04

9 months ago
pronto ready

Does not depend on Rails version.

ready

Does not depend on Rails version.

9 months ago
to_spreadsheet unknown unknown 11 months ago