Ubuntu (10.04, 10.10, 11.04, 11.10) • Debian (5.0, 6.0) • RHEL & CentOS (5.x, 6.x) • Fedora 10+ • Mac OS X (10.4, 10.5, 10.6, 10.7) • Windows 7 • Windows Server 2003 R2, 2008 R2 Ruby Ruby 1.8.7, 1.9.1 or 1.9.2 with SSL bindings is required. RubyGems Version 1.3.7 or greater. On Ubuntu and Debian Rubygems should be installed from source Git?