g729 broke on upgrade

I recently upgraded from an ancient 1.2.x version of Asterisk to 1.4.4.

Everything works except that my g.729 licenses are no longer recognized. No hardware has changed, and the license file is still in /var/lib/asterisk/licenses. The asthostid utility reports the same host id as is contained in the license file. Do I need to reregister to get it working, or is there some other gremlin at work here?