You are correct, Ruby and Python plugins add most of RubyMine/PyCharm features to IntelliJ IDEA Ultimate. You may want to have separate IDEs if you need more li

You are correct, Ruby and Python plugins add most of RubyMine/PyCharm features to IntelliJ IDEA Ultimate. You may want to have separate IDEs if you need more lightweight environment. RubyMine & PyCharm are in general updated more frequently too.