A pre-release version of Pro Tools software with Mac OS X 10.5.3 Leopard compatibility is now available. Pro Tools 7.4.2pr is released for Mac-based Pro Tools 7.4 users who wish to use Leopard before a fully tested and qualified version of Pro Tools becomes available.
Pro Tools 7.4.2pr is available as a download only, and requires Mac OS X 10.5.3. Pro Tools 7.4.2pr is not compatible with earlier versions of Leopard. Use the combo updater to update to 10.5.3.