The message "Warning: (from bitcoind) Warning: Unknown block versions being mined! It's possible unknown rules are in effect" comes from the bitcoin client you use to run your bitcoin node. It has to do with the signaling by the miners. It's normal behavior.
I currently mine using the merge of forrestv and veqtrus (version 17.0-2-gbc2d09e). I don't get the message "Warning: A MAJORITY OF SHARES CONTAIN A VOTE FOR AN UNSUPPORTED SHARE IMPLEMENTATION!".
Ok I figured out the problem ...
I have not upgraded to v17 ... I am still running v16.
I have beat my head against the wall trying to get v17 to work
I would welcome any help you coders can provide to a poor hardware guy ...
thought it would be a simple cut and paste of the new files ...
what I get for thinking I guess ....