Several distributions continue to support some their releases with bug fixes and updates after a set maintenance period. Some call it Long Term Support but the openSUSE folks call it Evergreen. Wolfgang Rosenauer, systems engineer and software developer, yesterday announced "that openSUSE 13.1 will be the next Evergreen release."
Evergreen is a community project to prolong the life of selected releases of OpenSUSE by providing updates and fixes beyond official support dates. Previous Evergreen releases include versions 11.1, 11.2, and 11.4. 13.1 is due to be officially supported for 18 months until May 2015 and Evergreen postpones its end of life November 2016 or another 18 months.