Ubuntu considers “huge” change that would end traditional release cycle

"Canonical, [..] is considering ditching that model in favor of one that produces an entirely new version only once every two years—while speeding up the overall pace of development by adopting a "rolling release" cycle in between."

Read more:
http://arstechnica.com/information-technology/2013/01/ubuntu-considers-huge-change-that-would-end-traditional-release-cycle/