Hi Mark
Yes we will be meeting Sat at UAT 10-4PM
upgrade can be done but I suspect most will recommend clean install 18.04 we normally back up /home which contains all files and data docs ect. then install clean. Why? Linux changes too fast 14.04 to 16.04 failed 50%
due to massive changes that were unable to be accounted for. 16.04 to 18.04 works 90% backing up home and clean install 100% plus we can test it before hand with live media. we will every thing to test upgrade or clean install
so either way we should be able to get you current. Todd