I have VoxelMap running in 1.14 now, using the Fabric loader ( https://fabricmc.net/ ). It's been a bear. I had it running in an early 1.14 snapshot, but when I updated to a more recent snapshot there were over 1000 compiler errors. Got them down to zero, then updated to the 1.14 release, and it went back up to 256 compiler errors. The churn in remapping names is really bad right now, and I hope it settles down at some point. Of course there will always been new things from Mojang that need names, but eventually I hope they'll get sensible ones in Fabric and stop changing.

After that it was getting Minecraft to start with the mod loaded (watching for runtime errors now!). That's done. Left to do: finding all the bugs that have no doubt crept into the deeply changed GUI code. Then I'll need to re-create the old heightmap info that Mojang removed in 1.14. And lastly I'll have to deal with the loss of the WorldChangeListener class, that conveniently alerted mods when the world had changed (useful for changing the minimap in realtime as the terrain changes).

In slightly better news, the wandering trader, fox and panda all got new icons without me having to program them in. The auto icon generator has become pretty robust!