Primary consensus rules (in plain English) - Bitcoin Controlled Supply Rule - Total supply of Bitcoins is controlled to a fixed number of 20,999,999.9769 Bitcoin. - Bitcoin Mining Reward Rule - How many Bitcoins are rewarded to the miner who creates a new Bitcoin block from the coinbase. Bitcoin Proof of Work Rule - The block hash must meet the cryptographic difficulty requirement. - Each Bitcoin transaction input must have the correct signature of its address owner. -Each Bitcoin transaction input can only be used once in the Bitcoin block. - Each Bitcoin transaction must be in the correct data format. - Each Bitcoin block must be in the correct data format. - Each Bitcoin block must contain the hash of the previous block in the blockchain. I am being pedantic but, my point was that nothing was "changed" persay. BIP 110 added rules and did not change the previous consensus rules. It would be fair to say "Only one side is pushing stricter rules for consensus"