Mac OS X Tiger
The next security update , 2009-006 only included support for Mac OS X 10 . 5 Leopard and Mac OS X 10 . 6 Snow Leopard . The latest supported version of QuickTime is 7 . 6 . 4 . 
<triplet> Mac OS X 10.5 Leopard <subj> Mac OS X 10.6 Snow Leopard <obj> followed by <triplet> Mac OS X 10.6 Snow Leopard <subj> Mac OS X 10.5 Leopard <obj> follows