jfruhlinger writes '-stable' is the term for the current Linux release most suitable for general use; but as Linux moves into more and more niches, there's a need for a kernel more stable than -stable, which is updated fairly regularly. Both enterprise and embedded systems in particular need a longer horizon of kernel stability, which prompted Greg Kroah-Hartman, then at SuSE, to establish a -longterm kernel, which will remain stable for up to two years. Now there are moves to get this schedule formalized — moves that are a good sign of Linux's long-term health."
You see but you do not observe.
Sir Arthur Conan Doyle, in "The Memoirs of Sherlock Holmes"