1. Buy old hardware as a dedicated testing server and run the older operating systems on different partitions
2. Run the older versions in VMWare (10.6 can do this, but I'm not positive about 10.5)
If you don't have 10.6, it's still available for free through the Mac Developer Program.
1. Buy old hardware as a dedicated testing server and run the older operating systems on different partitions
2. Run the older versions in VMWare (10.6 can do this, but I'm not positive about 10.5)
If you don't have 10.6, it's still available for free through the Mac Developer Program.