last time I checked they were at asterisk 1.8 ; looks like that they're now following mozilla/google chrome naming spree.
off-topic - having a project beginning with "A" is a double-edged sword: you're at the top of software lists, but you're also at the top of LWN vulnerabilities list. I can't recall the number of times I've seen asterisk listed when I was reading the articles on the security page.
I know asterisk is a big project, but making it so often on the list is quite frightening. That, plus their NIH syndrom and (at the time of 1.2) bad support even for customers who bought a few thousand dollars of digium hardware (like me), made me switch to freeswitch (!) and since then I've never looked back.