Soft Fork
A backward-compatible protocol change where upgraded nodes enforce stricter rules without splitting the network.
In a soft fork, upgraded nodes enforce rules that are stricter than the old rules. Non-upgraded nodes can still follow the same chain because blocks valid under the new rules also appear valid under the old rules, even though old nodes may not understand every new condition.
Soft forks can reduce coordination burden, but they also rely on enough miners and economic nodes enforcing the new rules. If activation is poorly coordinated, the network can still experience confusion, rejected blocks, or temporary splits.
Related terms
3 linkedExplore connected entries beyond the alphabetical index.
Fork
→A fork is a blockchain divergence caused by competing blocks, software changes, or incompatible consensus rules.
Protocol Upgrade
→A coordinated change to network rules that nodes adopt to gain new features or fixes.
Bitcoin Improvement Proposal (BIP)
→A design document proposing changes or standards for Bitcoin.
All terms and definitions may update as the Cryptionary improves.
