[somebodythere]

So... the consensus rules of the network changed, you need to make sure you have the correct client, and bitcoin is weakly subjective after all?

[madacol]

Asking "what's the correct client?" will always be a subjective question

Bitcoin doesn't decide what is called bitcoin, we as a community do

[rocqua]

In practice this was essentially a soft-fork. But yes the consensus rules of bitcoin software changed.