It may be worth to have your local Apple Store make the switch for you when you have some hesitation. After I switched, I occasionally had to spend tedious amounts of time to track behind oddities and purge them (the Apple Forums come in handy here). Do not assume that Apple has this part correct. They will instead come when you do a lazy/sloppy job to install and then clean up behind 10.6.8. But you can greatly reduce your chances of problems, both big and small, by regularly.

IOW, the headaches on 10.6.8 -> 10.8.x are not due to bugs in 10.8.x. Mac OS X is relatively hassle-freeu2014most people can get by without doing any routine maintenance at all. book Real World Mac Maintenance and Backups, as well as Take Control ofMac OS XBackups. * shut down any sync services (Apple and third party) and save the files locally before the update … be prepared to reinstall the files and services after the update (see the Time Machine backup and the extra duplicate backup) MacBook Pro (main computer) Media Drive (1 TB disk: photos,etc.). * be prepared to migrate applications by doing a fresh install (get those serial numbers on record first) * do a clean install when possible or be fully prepared to have to clean out stray hacks from your now-defunct software (the console log and terminal command line tools are your best friends here) * duplicate everything important in your home directory to somewhere else

Maintenance for mac os x 10.6