Hi John, Thanks for the question.
Checkout the "Updating QnetGateway" in the Wiki in this group. Depending on how much has changed since you did you last "git pull" upgrading can be much simpler, if you know what you are doing, like if the changes are minor, you don't need to do a "make clean", but the instructions in the Wiki will work regardless of how much things have changed.
The cool thing about QnetGateway is that it doesn't take very long to make everything you need from a clean slate.
Tom Early