I was talking to someone today who mentioned to me that the version label
(12.0) hadn't changed in quite a while for libc...

...however, work continues to be done on it...what qualifies for changing
the version, and should it change (the minor part) more often to reflect
the work done ?  There have been (what you might call "major") changes to
it which have also required a rebuild of ld and friends.

darren