Hello,
I recently upgraded my Mac to Mac OS X 10.11.4 and also updated my Mathematica version to 10.4. Per a Wolfram instructions for a work around posted at: http://support.wolfram.com/kb/23626 I tried the work-around steps but each time I launch Mathematica this way (or any other way) I get a dialog panel indicating that Mac OS is "Verifying the Mathematica Application" with a progress bar that never finishes.
Is anyone else observing this issue? Is Wolfram testing these releases on each platform before they are released to customers?
Thanks