The 8.5 and 8.6 branches of Mac OS were great, I feel. I hosted lots of servers on them, especially 8.6.2. However, every single other version of the OS was a buggy, crashing nightmare if you were looking for extended uptime. 7.6.1 was halfway OK, but man, I never kept a Mac OS running as long as in 8.6.2. I had months of up time, I&#x27;m telling you. Months!