--I found my own answer after taking another whack at the forums. Seems like I needed the following installed:
I know have a menu item and can launch mintUpdate with problems.
Hello. A happy Celena user here since October. MintUpdate seems like a useful utility. Forum posts cited early versions as compatible with Celena. So I downloaded the version 1.7 .deb from http://www.linuxmint.com/repository/daryna/, and installed. No problems with install, but no launch icon appears under Administration. Next I opened a terminal window and tried:
sudo python /usr/lib/linuxmint/mintUpdate/mintUpdate.py
That saves 964 rules, but MintUpdate utility doesn't launch. So what do I have to do to get MintUpdate to run?