My Bitcoin Core wallet 0.14.2 received today a message:
Warning: Unknown block versions being mined! It's possible unknown rules are in effect
Should I be worried about this?
No, you can ignore that in this case. It's caused by BIP91 signalling.
Can you please elaborate? It feels so weird to see in Bitcoin Core:
Warning: Unknown block versions being mined! It's possible unknown rules are in effect
Why would miners be "signalling BIP91"?