AD released maya hotfix 4, wich includes a hotfix 4 for composite too, you can just grab the Composite Hotfix#4 (notice that requires uninstalling composite because the hotfix4 is a full installation).
http://usa.autodesk.com/adsk/servlet/ps ... ID=9242259
Beside the weirdness of why this didnt pop out as new on Softimage and Max users too (wich i personally stopped care how AD promote their own products cuz is beyond my comprehension) you might wanna know that the team that is developing Composite is the Maya team, so for future reference when you need to look and seek some updates you might want to check Maya service packs and updates.
OT; here is another interesting link:
http://area.autodesk.com/blogs/ken/if_y ... _next_week
wich brings me to one question....Why AD didnt even think to make a decent interop with their own Compositing software (aka toxic) and they promote Adobe After effects... ok maybe userbase, maybe no one uses toxic but this is kinda hilarious lol.
Looking doubtful to Siggraph