Ruby gem: devise
gem install devise -v 2.0.0.rc2 gem 'devise', '~> 2.0.0.rc2' To lock this gem at this specific version, update your Gemfile:
gem 'devise', '2.0.0.rc2' Then run:
bundle install Note: This is an older version. Consider upgrading to the latest version (4.9.4) for the newest features and security fixes.