I can't answer your question, but being busy with something else I unthinkingly installed the same update. I thought it was probably one of the incessant security updates to Adobe Acrobat Reader, or maybe a more welcome update to Photoshop or ACR. The next thing I know it's asking me to sign in with my user name and password, which I did. Then it tells me that entering my date of birth is "required" and I closed the dialog. At least for now I don't want any involvement with CC, and I don't want to give Adobe personal data just so I can be subjected to their marketing campaign. It seems that Adobe is trying to switch people to CC whether they want it or not by putting it on computers in the guise of program "updates" as opposed to "trial-ware" and "upgrades". The last thing I want on my system is a load of trial-ware and "updates" nagging me to install more of it. If and when I want this stuff I can figure out how to buy it.
Along the same lines, it appears that for non-CC folks the Adobe Application Manager (AAM) is also mostly a trial-ware delivery tool, and may be the reason for this recent "update". Apparently a special "cleaner" tool from Adobe is needed to get rid of AAM as Adobe didn't see fit to supply the customary uninstaller. Kluge-ware comes to mind. I believe AAM can also update purchased programs, but that can be done from within the programs too.