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How Does a Hard Fork or Soft Fork Change the Block Size Limit?

A hard fork is a permanent divergence from the previous version of the blockchain, requiring all nodes to upgrade to the new rules. A hard fork is typically needed to increase the block size limit (e.g.

Bitcoin Cash). A soft fork is a backward-compatible change that tightens the rules, like SegWit, which introduced the block weight limit without requiring non-upgraded nodes to stop processing new blocks.

What Is the Difference between “Soft Forks” and “Hard Forks” in Blockchain Governance?
What Are the Key Differences between a ‘Hard Fork’ and a ‘Soft Fork’ in Blockchain Development?
What Is a ‘Hard Fork’ and How Does It Differ from a ‘Soft Fork’?
What Is the Difference between a Soft Fork and a Hard Fork?