The definition of a soft fork is a further constraint. A narrowing of the consensus rules. The definition of a hard fork is relaxing a constraint. A broadening of the rules.
So expanding the main block size limit (Satoshi’s 1MB limit) is a hard fork because it relaxes the limit. Unupgraded nodes would NOT accept the new, larger blocks. It’s a hard fork because everyone must upgrade, or be left behind.
By contrast, reducing the block size is a soft fork. Unupgraded nodes will accept the new, smaller blocks just fine. It’s backwards compatible. People can opt to run old software and continue to use Bitcoin.
jimbocoin / jimbocoin 🃏
npub1v9…x9q3h
2025-05-09 00:25:28
in reply to nevent1q…u4nz
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