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 4

Name Status Rails 4 Notes Rails 4 Status Rails 5 Notes Rails 5 Status or notes updated
enginery-core unknown unknown about 6 years ago
enju_standalone_interface unknown unknown about 6 years ago
enki_engine unknown unknown about 6 years ago
ensembl-api unknown unknown about 6 years ago
enterprise-menu unknown unknown about 6 years ago
episko-facebooker2 unknown unknown about 6 years ago
errorlogic unknown unknown about 6 years ago
escape_utils unknown unknown about 6 years ago
exoskeleton unknown unknown about 6 years ago
ey_config unknown

engineyard config gem

unknown over 5 years ago
fabrication unknown unknown about 6 years ago
factory_girl_rails-remote_api unknown unknown about 6 years ago
fake_rest_services unknown unknown about 6 years ago
fanatic unknown unknown about 6 years ago
Feedbackandscreencap unknown unknown about 6 years ago
fidel-devise_security_extension unknown unknown about 6 years ago
financial_services unknown unknown about 6 years ago
Fishnet unknown unknown about 6 years ago
flag_this unknown unknown about 6 years ago
flashed unknown unknown about 6 years ago