Validating (economic) nodes successfully pushed a rule chan…

Validating (economic) nodes successfully pushed a rule change (SegWit activation)
- BIP148 (UASF): A user-activated soft fork client specified that, starting Aug 1, 2017, nodes would reject blocks not signaling SegWit—i.e., users/validators would enforce the new rule threshold from their side: https://github.com/bitcoin/bips/blob/master/bip-0148.mediawiki
- In response, miners adopted BIP91 (a miner-activated soft fork that orphaned non-signaling blocks) to ensure SegWit would lock in without a prolonged split: https://github.com/bitcoin/bips/blob/master/bip-0091.mediawiki
- SegWit ultimately locked in and activated on Bitcoin mainnet in August 2017 (consensus rules changed via soft fork): https://en.wikipedia.org/wiki/SegWit