Anyone know what this message means and how to fix it?


Warning: Unknown block versions being mined! It's possible unknown rules are in effect

This is coming up in Raven Core version v2.2.1.0-7914d9c (64-bit) for Windows

I sometimes mine on this computer with NVIDIA cards when I'm away from the machine at night. Right now miner is not running and this message is popping up.


Thanks for any input.