Compatibility reports are coming in for Mac OS X Tiger. There are underlying Core Audio changes in 10.4, so you can expect some audio hitches. I’d especially like to confirm the possibility that audio drivers might cause freezes or prevent restart/shutdown. MacFixIt reports one reader’s M-Audio Revolution drivers were causing startup/shutdown issues.
As always, do a full clone of your installation before you try Tiger. But once you have, has anyone else had driver issues like this? (If you are having problems, you might follow the MacFixIt reader’s advice and remove your driver.) Edirol and MOTU have driver updates as reported in our Tiger special report, but M-Audio doesn’t appear to have posted any Tiger info yet.
Windows users, relax and enjoy Pizza Synth with the knowledge you don’t have to worry about this stuff for a while.