Installing Ruby 2.1.0Edit

On OS X Mavericks 10.9.1 (using Homebrew)

At the time of writing, Homebrew hasn't updated to the latest necessary version of ruby-build, so we have to install the latest HEAD:

$ brew unlink ruby-build
$ brew install --HEAD ruby-build
$ rbenv install 2.1.0

On Fedora 8

• See "Updating to Ruby 2.1.0 on Fedora 8"