Apple has pushed out GarageBand 6.0.4, introducing a few minor changes in addition to the usual “overall stability and performance” fixes. Of note, GarageBand’s Lesson Store has been changed to fix an issue that was preventing lesson downloads from completing properly. On a more practical note, the update also addresses a bug that caused some tempo-based effects to fall out of sync with the main song, as well as a problem with Magic GarageBand projects not opening properly in the tracks view. ($14.99 new from the Mac App Store, free update through Software Update or the Mac App Store, 53.72 MB)
Compare More Easily in Apple Mail
In Apple Mail, if you need to work back and forth between two different views of Mail's mailbox contents, you can do so quite easily. For example, you might want to look at a mailbox holding all filtered-in sales orders from the past week while also looking at a smart mailbox showing unanswered customer questions.
To avoid constantly clicking between mailbox views and losing your context each time, choose File > New Viewer window to get a second window and then arrange each window as desired.