As others have noted there is a real problem downloading and installing this update.
Mac App store indicated the update was available, clicked to install and got the spinning comma symbol, not the download symbol. After some time tried opening app but could not as it was being "updated". Later I could open app but it was still the 1.67 version. The 1.67 app appears in the Applications folder and in the dock but does not appear in Launchpad which now has an empty download indicator below it. It is like the download never started or is stuck. Tried various methods and restarts to solve this problem but no success.
