Hotfix #4 includes an update to Maya Composite. You must uninstall your existing Maya Composite before installing this update. Mac and Linux users: the update is included in the Hotfix 4 installer. Windows users: use the separate download below.
For installation on Mac OS X, if you have newer components on your machine (such as QuickTime or DMM), a warning message may appear at the end of installation indicating a failure. This message indicates a component failure, not a failure of the Maya installation.
Every hotfix is cumulative; it contains the fixes from the hotfix(es) that preceded it. For example, Hotfix #2 includes the fixes released in Hotfix #1, therefore you do not need to download and install both hotfixes.