Supported Ruby/Rails versions

To work with the Ruby programming language, you need to download and install the required Ruby distribution. IntelliJ IDEA automatically detects interpreters installed on a local machine and maintained by version managers. The following interpreters are supported:

• Ruby MRI (version 2.2.0 and later)

• JRuby

• TruffleRuby (without debugging)

• Rubinius (without debugging)

For Rails projects, the following framework versions are supported:

• Rails 3.2.x requires Ruby 1.8.7 or later.

• Rails 4 requires Ruby 1.9.x or later.

• Rails 5 requires Ruby 2.2.2 or later.

• Rails 6 requires Ruby 2.5.0 or later.