UPDATE February 27 2013: this article has been obsolete. Phusion Passenger supports multiple Ruby interpreters as of version 4.0.0. The PassengerRuby config option has been made a per-virtual host option, so you can customize your Ruby interpreter on a per-application basis. One of the questions we’ve been getting a lot lately is whether it’s possible to run multiple Ruby versions with Phusion Pas
![Phusion Passenger & running multiple Ruby versions](https://cdn-ak-scissors.b.st-hatena.com/image/square/fb0c36ec5bd74dedb19c189ed3dc457dda178359/height=288;version=1;width=512/http%3A%2F%2Fblog.phusion.nl%2Fwp-content%2Fuploads%2F2010%2F09%2Fsetup.png)