When licensing software under the GPL, you can (optionally) add an "or later" clause to the license version. So "GPLv2 or later" can be incorporated into a GPLv3 work, for example.
Is there a recommended way to do this for CC licenses? For example, how do I release a work as "CC BY-SA 2.5 or later"?
(I know that certain recombinations of works under different versions of CC licenses are allowed. I am instead looking for a way to explicitly allow wholesale recombination/relicensing as described above.)