RuboCop's installation is pretty standard:
$ gem install rubocopIf you'd rather install RuboCop using bundler, don't require it in your Gemfile:
gem 'rubocop', require: falseRuboCop's development is moving at a very rapid pace and there are
often backward-incompatible changes between minor releases (since we
haven't reached version 1.0 yet). To prevent an unwanted RuboCop update you
might want to use a conservative version locking in your Gemfile:
gem 'rubocop', '~> 0.79.0', require: false!!! Note
You can check out our progress on the road to version 1.0 [here](https://github.com/rubocop-hq/rubocop/milestone/4).
You can also help us get there faster! :-)