What is a bitcoin fork? Miners v. node runners v. users v. client v. software v. entitiy Mempool policy v. drivechain v. Extention Block The block Size wars, UASF - User Activated Soft Fork {the miners making some soft fork so the node runners did a soft fork to invalidate their soft fork?} Before I was familiar with bitcoin, forking usually meant forking the coidebase but in bitcoin its a different story.