Orren Merton
Logic Samurai / Administrator
There have been some reports of reduced performance and track count for users of the latest iMacs and MacBooks (the ones with i5/i7 CPUs and "hyperthreading") on some forums. Clearly, Logic has changed the way it meters these machines, but the jury is still out whether this is an actual reduction in performance, or simply a change in meters.
However, just in case, it is always a good idea to back up your older versions!
Since the Update installer (or using System Update) writes over your current version of Logic, there isn't an easy way to revert to the previous version of Logic.
Therefore, before you update, you should make a .zip file copy of Logic 9.1.1 (just select "Compress Logic Pro" from the Finder's "File" menu, or right-click on the application icon in the Finder to bring up the shortcut menu).
This way, if you do find reduced track count or plug-in count, you'll still have the older version to unzip and use.
Orren
However, just in case, it is always a good idea to back up your older versions!
Since the Update installer (or using System Update) writes over your current version of Logic, there isn't an easy way to revert to the previous version of Logic.
Therefore, before you update, you should make a .zip file copy of Logic 9.1.1 (just select "Compress Logic Pro" from the Finder's "File" menu, or right-click on the application icon in the Finder to bring up the shortcut menu).
This way, if you do find reduced track count or plug-in count, you'll still have the older version to unzip and use.
Orren