Its definitely full install I guess, but fullzero said he will update OP with full instructions, lets wait for them.
If v0019 is Ubuntu 16.04 too , it shouldn't need full install.Unless it has big changes in distro and softwares.
Hopefully it doesnt need full.
The size of the primary partition has been drastically reduced; it is most likely faster to download the v0019 image than implement changes. I also resolved a number of system conflicts.
OK, then I have to go for a reinstall of v0019
But please try to find a way for next versions to have an upgrade too so we dont have to reinstall whole system,
I have my rigs in remote location, remote as 1000 Km away.
I think so many others are like me.
I make them ready and send them to their new home
hard to reinstall whole system for every update.