Currently Being ModeratedMay 6, 2012 9:40 PM (in response to arsenfromyerevan)
You should always expect problems when upgrading your OS. If you have none you will be pleasantly surprised. Apple considers Leopard "obsolete" so upgrading is advised.
By now I would expect their developers should have addressed any incompatibilities. Snow Leopard has been around for quite a while.
To be certain, peruse their websites to determine if your versions of those programs are compatible.
I had no problems migrating to Snow Leopard. Everything worked.
Currently Being ModeratedMay 6, 2012 9:47 PM (in response to arsenfromyerevan)
You have a safer option:
You will want to have a good backup drive for making a clone before the upgrade, assuming you do not have one now. You could get the external dirve for the backup, and clone your internal drive to that external. The upgrade the external and work out the bugs there, leaving your primary internal drive untouched until you are sure all is well.
When all is well, swap the drives and you have a new drive and a new OS, with the old OS on the old drive. Or other "clone back to internal". Several possibilities with using a different drive/partition for dry-testing the upgrade.
Currently Being ModeratedMay 7, 2012 4:40 AM (in response to steve359)
I too had no problems when upgrading to Snow Leopard. This is arguably the best OS ever but sadly it will probably not be supported when 10.8 Mountain Lion arrives as Apple tend to stop support once an OS drops to third place in the heirarchy.
Mountain Lion will be 10.8
Lion is 10.7. (x)
Snow leopard is 10.6. (x)
As we don't know any of the detail for Mountain Lion, we cannot anticipate how your existing programs will be affected. My advice would be to hold off until Mountain Lion arrives (it has been suggetsed this should be late summer).
Currently Being ModeratedMay 7, 2012 8:08 AM (in response to arsenfromyerevan)
Provided you make sure to select Rosetta to be installed during the installation, there should be no problems with anything that works in 10.5. But! Some applications did break or become flaky and require updating (Adobe mostly).
So follow the advice above and check with the vendors' websites for compatibility.
Final Cut should be OK, I know Logic 8 is.
Never heard of Shake.
Maya may be problematic; the 2010 version had problems at first and I don't know if they were resolved.
No idea about the others.
Installation should be straightforward and just replaces system files without altering your settings and data.
However! You should always have a backup, especially before doing anything that alters the system.