The policy was updated 3-4-14 (CLA summit?).
CLAD - 2 years (same as before)
CLD - 3 years
CLA - 4 years
http://www.ni.com/white-paper/9605/en/
I like this change. The two year renewal always seemed to sneak up.
LabVIEW 2013 has a subtle feature that I recently 'discovered' that has made debugging reentrant VIs so much better. Basically you can now browse for re-entrant clones (or for the re-entrant master/original) from the Tools-->View Menu.