openSUSE, (pronounced /ˌoʊpənˈsuːzə/), is a general purpose operating system built on top of the Linux kernel, developed by the community-supported openSUSE Project and sponsored by Novell. After acquiring SUSE Linux in January 2004, Novell decided to release the SUSE Linux Professional product as a 100% open source project, involving the community in the development process. The initial release of the community project was a beta version of SUSE Linux 10.0, and as of December 2008 the current stable release is openSUSE 11.1. openSUSE is driven by the openSUSE Project community and sponsored by Novell, to develop and maintain SUSE Linux distributions components.
It is the equivalent of the historic "SuSE Linux Professional". After their acquisition of SUSE Linux, Novell has decided to make the community an important part of their development process.