Avid is pleased to announce that Mac OS X 10.6.8 and the supplemental update "10.6.8v1.1" is officially qualified with the following versions of Pro Tools 8.0.5 and 9.0.3:*HD Native cards require Pro Tools 9.0.4 to function correctly on OS X 10.6.8 and higher. The Pro Tools 9.0.4 Update addresses the following known issues:Please Note: Pro Tools 9.0.4 is a specific release for users of Pro Tools HD Native core cards only. It is not required or recommended for users of Pro Tools HD TDM core systems or any non-HD systems.

Also qualified are the current versions of the following:

For information on Pro Tools version compatibility and requirements with different OS versions of Mac and Windows, see the Pro Tools Compatibility home page:For the latest Pro Tools updates for your version of Pro Tools, see the Pro Tools Updates home page:Both of these links are available at the top of the forum:
Pro Tools Compatibility Grids | Pro Tools Updates

For information on qualification of M-Audio devices, see the following: