Before I found out that the newest versions were even out, I went ahead and installed the update to the Creative Cloud Installer App (it's now at Version 18.104.22.168) - as I thought it was just a regular update - and I now don't have the "Advanced Options" Checkbox that is mentioned in post. Is there any way to get that back? As I'd like to try out the new version of AE while also keeping my prior versions.
I'm on OSX 10.10.3.
Go to the Apps section. Click the button to install the new versions. Then it will give you the advanced options.
Ah, there we go! Perhaps this should be mentioned on the Adobe help page, as the screenshot they provide makes it look as if its only when you update the Creative Cloud app rather than install a particular app, as I was afraid that once I hit the update button it would be too late. Thanks!