Upgrading an After Effects Render Engine node?

I followed these instructions at one point to create a Render Engine node of After Effects CC.  We now need to upgrade that render node and I'm not quite sure how to go about doing it.  Do I just have a user sign in, update the app normally, and then sign back out?  Do I have to create a new package using the CC Packager? 

If it's the latter, I'm not seeing CC 2018 as an option in the CC Packager.  I'm frankly baffled, and any help would be appreciated.