Apple just released Mac OS X 10.5.8 and many users have updated without any problems. After cloning my Mac OS X 10.5.7 drive, I updated my old PPC Mini and tested the new version of the system. Although Mac OS X 10.5.8 installed and started up without any problems, I found some serious issues that convinced me to revert back to Mac OS X 10.5.7. You might not have the same issues since system configurations differ, but you might find it useful to know what problems can exist with Mac OS X 10.5.8.