The latest beta version of Phusion Passenger 4, beta 2, was announced last month. You can read more about it in Phusion’s blog post.
The packages are currently built only for Ubuntu Lucid, Oneiric and Precise and will work with or without our Ubuntu Ruby NG packages (though we’d recommend them!).
The package support both Ruby 1.8 and Ruby 1.9.3 - you can just set
PassengerRuby option to either
ruby-switch to change the default
ruby binary of course).
Please let us know about any success stories or problems at email@example.com (you don’t have to be a Brightbox customer!)