Transition to Rails 6 - Reverse dependencies list
There is also a lists for Rails 6 dependencies.
Summary
These packages are depends on Ruby on Rails. For upgrading Rails 6, the upgrade transition (patch to avoid the deprecated or removed APIs, apply the parameter changes, ...) is needed to these packages.
Packages list
S Debian package name S = ✓: OK
ruby-actionmailer
ruby-mail-gpg
ruby-messagebus-api
ruby-exception-notification
ruby-activeview
ruby-rbpdf
ruby-rails-deprecated-sanitizer
ruby-actionpack
ruby-actionpack-page-caching
ruby-diaspora-federation-rails
ruby-escape-utils
ruby-gon
ruby-haml-magic-translations
ruby-ice-cube
ruby-redis-actionpack
ruby-rack-google-analytics
ruby-rails-timeago
ruby-activemodel
ruby-rails-observers
ruby-email-validator
ruby-openid-connect
ruby-rspec-collection-matchers
ruby-state-machines-activemodel
ruby-validate-url
ruby-activeldap
ruby-acts-as-api
ruby-pundit
ruby-sequel
ruby-activesupport
ruby-awesome-print
ruby-babosa
ruby-backports
ruby-blade
ruby-case-transform
ruby-climate-control
ruby-clockwork
ruby-cocaine
ruby-delorean
ruby-excon
ruby-grape
ruby-grape-entity
ruby-grape-path-helpers
ruby-hashie
ruby-html-pipeline
ruby-oj
ruby-omniauth-crowd
ruby-origin
ruby-rabl
ruby-rack-oauth2
ruby-rails-dom-testing
ruby-redis-activesupport
ruby-shoulda-matchers
ruby-spring-watcher-listen
ruby-swd
ruby-task-list
ruby-timecop
ruby-treetop
ruby-webfinger
ruby-wikicloth
ruby-activerecord
ruby-activemodel-serializers-xml
ruby-activerecord-import
ruby-activerecord-nulldb-adapter
ruby-acts-as-list
ruby-acts-as-taggable-on
ruby-acts-as-tree
ruby-after-commit-queue
ruby-attr-encrypted
ruby-database-cleaner
ruby-default-value-for
ruby-delayed-job
ruby-delayed-job-active-record
ruby-em-synchrony
ruby-factory-bot
ruby-fast-gettext
ruby-flipper
ruby-kaminari
ruby-model-tokenizer
ruby-moneta
ruby-parallel
ruby-paranoia
ruby-roxml
ruby-seamless-database-pool
ruby-seed-fu
ruby-sequenced
ruby-state-machines-activerecord
ruby-stringex
ruby-thinking-sphinx
ruby-validate-email
ruby-railties
ruby-actionpack-xml-parser
ruby-backbone-on-rails
ruby-browser
ruby-coffee-rails
ruby-doorkeeper
ruby-entypo-rails
ruby-factory-bot-rails
ruby-font-awesome-rails
ruby-generator-spec
ruby-i18n-inflector-rails
ruby-jquery-rails
ruby-jquery-scrollto-rails
ruby-jquery-ui-rails
ruby-js-routes
ruby-devise
ruby-devise-two-factor
ruby-jira
ruby-lograge
ruby-markerb
ruby-momentjs-rails
ruby-peek
ruby-rabl-rails
ruby-rails-i18n
ruby-request-store
ruby-sass-rails
ruby-sidekiq
ruby-versionist
ruby-web-console
ruby-webpack-rails
Binary packages (Rails applications)
camping coquelicot
debci
diaspora
gitlab
gitaly
open-build-service
passenger
redmine
schleuder
sonic-pi
Weak ruby-rails (might not contain all the Rails frameworks)
ruby-actionpack-action-caching
ruby-asset-sync
ruby-codemirror-rails
ruby-data-migrate
ruby-devise-lastseenable
ruby-enumerize
ruby-hamlit
ruby-joiner
ruby-leaflet-rails
ruby-premailer-rails
ruby-rails-tokeninput
ruby-sprockets-rails
ruby-validates-hostname
ruby-active-model-serializers
Strong ruby-rails (contain all the Rails frameworks)
ruby-appraiser
ruby-flot-rails
ruby-gettext-i18n-rails
ruby-gettext-i18n-rails-js
ruby-rqrcode-rails3
ruby-sentry-raven
ruby-simple-captcha2
ruby-snorlax
ruby-yaml-db
ruby-api-pagination
ruby-carrierwave
ruby-combustion
rails
ruby-dalli
ruby-globalid
rails
ruby-haml
ruby-haml-rails
ruby-hashie-forbidden-attributes
ruby-health-check
ruby-jbuilder
ruby-jquery-atwho-rails
ruby-js-image-paths
ruby-mobile-fu
ruby-rails-html-sanitizer
ruby-responders
ruby-roadie-rails
ruby-rspec-rails
ruby-spring
ruby-voight-kampff