Logic Pro 9 Update 9.1.8 !!better!! Download Info

This usually happens when moving from 9.1.6 to 9.1.8. The solution is to delete the com.apple.logic.pro.plist in ~/Library/Preferences/ and restart Logic. You will have to re-enter your audio device settings.

: Addressed issues where Logic Pro 9 would unexpectedly quit when using specific plugins or editing MIDI. logic pro 9 update 9.1.8 download

Many users on 8-core Mac Pro systems noted that all cores were utilized more evenly, reducing "spikes" that previously caused playback stops. This usually happens when moving from 9