A new release for Mac OS X is now available ( version 20160521 ) which fixes issues preventing CUPS Cloud Print from working on Mac OS X El Capitan (10.11).
These were only changes relevant to the Mac OS X package, so there are no Linux packages for this release.
Installation instructions, as always are here.
- Fix: Now works on Mac OS X 10.11 ( El Capitan )
- Change: Moved Mac OS X Install dir from /usr/local/share/cloudprint-cups to /Library/cloudprint-cups