Granted, this is three months old - I must not've been paying attention recently, or maybe have just been going to the downloads and technical pages - but still:
20-05-2008 Released AdvanceMENU v2.4.14 (only compilation fixes, no new features).
As well, I've noticed the page's title font is different, at least a lighter blue than before. I dunno, but all this could be pointing to a coming new release!
http://advancemame.sourceforge.net/