Hard fork

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A hard fork divides a blockchain in a way that results in two distinct blockchains. The code is altered so that they cannot work together and then they proceed to grow in different ways. A hard fork will develop its own cryptocurrency. There are already four hard forks of the Bitcoin blockchain. Reasons that could make a hard fork a necessity:

  • Add functionality    
  • Correct security risks     
  • Resolve a disagreement     
  • Reverse transactions on the blockchain

There is such a thing as a soft fork, where there is a change to the original protocol (rules) but the end product still functions with the original blockchain. This is called being backwards compatible.

Want to know more? What is a Hard Fork & How Does it Work? (Aug.2022).