Hard Fork

What is Hard Fork?

A hard fork is a significant update to blockchain protocol’s software. With a hard fork update, the rules for creating a block changes, rendering new blocks incompatible with old rules; splitting the blockchain into two separate networks.

For example, Ethereum was hard forked, resulting in Ethereum (ETH) a forked blockchain, and Ethereum Classic (ETC) the original blockchain. The forked blockchain with new protocol rules will eventually replace the original one.

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