Debian 5.0 "Lenny" heads for a September release
Once frozen, the developers are aiming to focus on fixing the 360 open release critical bugs that Claes says are presently being tracked. Attention was also drawn to the fact that eight of the twelve supported architectures are in danger of being dropped from the next release due to a issues with a lack of information being gathered on those architectures on the Debian Wiki.
Debian GNU/Linux aims to be the most free Linux distribution, with the rigid rule that only free software used; there are no binary blob drivers or proprietary software. The developers have a release philosophy of "release it when it's ready", and have been known to take some time working on releases. Debian 4.0 was released in April 2007 and took around 21 months to complete. A number of Linux distributions are derived from Debian, probably the best known of which is Ubuntu Linux.