Welcome!
ruby-versions.net is a server running many different versions and implementations of Ruby. You can get a free shell account on the server and run all of these Rubies yourself.
ruby-versions.net was created, and is maintained, by David A. Black.
Current Rubies
Learn the details of the key Ruby interpreters of today, including MRI, JRuby, Rubinius, and REE. Try out all the modern Ruby versions from 1.8.6 onward and learn the differences. Run comparisons and benchmarks. And keep your knowledge current with nightly MRI snapshots!
The Vault
When did puts enter the language? Was metaprogramming there all along? When did irb get bundled with Ruby? The Ruby vault contains Ruby versions all the way back to Ruby 1.0 (1997). Learn the history of your favorite language by trying out this unique collection of old interpreters!
