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Hard Fork vs. Soft Fork: How Blockchain Upgrades Work
Older nodes can accept soft-fork blocks without understanding every new rule. A hard fork requires upgraded software to follow the changed network, but does not automatically create another coin.
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Terms in this story
- Blockchain
- A shared, ordered record of transactions, grouped into blocks, that independent computers check against the same protocol rules.
- Hard fork
- A rule change that older software won't accept.
- Soft fork
- A rule change that tightens the rules, so older nodes still accept the new blocks.