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
lock ready

https://lockupgem.com

ready

https://lockupgem.com

over 2 years ago
lograge unknown ready

5.0 from v0.4.0, 5.1 from v0.5.0, 5.2 from ? mentioned in commit messages though

8 months ago
marco-polo ready

running in our 4.2 app for some time

ready

Not specified... Has rails dependencies, but just uses ENV vars for app name. Probably ok.

8 months ago
massa ready

It doesn't depend on Rails

ready

It doesn't depend on Rails

over 2 years 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)

over 1 year ago
migration-lock-timeout ready

running on our Rails 4.2 app for some time

ready

Rails 5 ready as at v1.1.0

8 months ago
minitest-rails ready

yes

ready

from 3.0.0 https://github.com/blowmage/minitest-rails/blob/master/CHANGELOG.rdoc#300--2016-07-01

about 3 years ago
money-rails ready

Tested in rails upto 4.2.6

ready

from version 1.7.0

about 3 years 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/

11 months ago
newrelic_rpm ready

_

ready

since version 3.15.0

about 3 years ago
nokogiri ready

Does not depend on Rails.

ready

does not depend on Rails

8 months ago
oauth2 ready

Standalone gem

ready

since version 1.2.0

about 3 years ago
omniauth ready

-

ready

since version v1.3.1 (https://git.io/vXCd0)

almost 3 years ago
omniauth-google-oauth2 ready

No direct Rails dependencies. Runs on our Rails 4.2 app

ready

No direct Rails dependencies. Probably 5-ready

8 months ago
paperclip ready

since gem version 3.5.1

ready

since version 5

about 3 years ago
paranoia ready

since version 2.0

ready

from version 2.2.0

over 2 years ago
pdftk-heroku ready

Running on our 4.2 app for some time

ready

Not dependent on Rails

8 months ago
pg ready

Does not depend on Rails

ready

Does not depend on Rails

about 3 years ago
phonelib ready

running on our 4.2 app for some time

ready

v5.0/5.1 from v0.6.12

8 months ago
premailer-rails ready

since version 1.3.2

ready

since version 1.9.2

about 3 years ago