Samson Mow Revives Bitcoin XT Warning Amid Governance Battle

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Samson Mow on July 24 revived the Bitcoin XT and BIP101 debate, noting the proposed 75% miner signaling hard fork risked forcing major protocol changes and potentially splitting the network. Though Bitcoin XT failed, the episode underscores crypto governance and miner-driven consensus risks around protocol upgrades and hard forks and continues to shape modern disputes over relay policy versus consensus, increasing uncertainty for adoption.
- Bitcoin XT’s 75% miner threshold exposed risks of forcing major protocol changes.
- Today’s Core-Knots dispute affects relay policy, not Bitcoin’s consensus rules.
- Bitcoin XT failed, but its governance lessons still shape modern protocol debates.
JAN3 chief executive Samson Mow has reopened a defining Bitcoin governance dispute, using the failed Bitcoin XT campaign to frame today’s protocol tensions. In a July 24 post, Mow said Gavin Andresen and Mike Hearn promoted BIP101 to miners after Core developers rejected it.
BIP101 proposed a contentious hard fork requiring 75% miner signaling, which critics feared could divide the network before broader agreement. Bitcoin XT already existed, but Hearn later added Andresen’s proposal and promoted the alternative client to mining pools.
BIP101’s 75% Miner Threshold Tested Bitcoin’s Consensus Model
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