That's the ubuntu binary I guess? I'll rebuild it without needing dynamic libjansson
Yep, it's the Ubuntu binary.
Uploaded fresh builds. Try again.
It's running now, but it says it's running 2.11.3. I can see the 2.11.4 cosmetic changes (removed queued, efficiency and discarded work) though, so I know I copied over the right files.

Yeah my bad, I built from the master git branch which isn't labelled 2.11.4, but you do have the latest code (and the no-one-ever-READMEs).