Michael Saylor joins Bitcoin BIP-110 dispute as early lock-in window slips out of reach

Michael Saylor joins Bitcoin BIP-110 dispute as early lock-in window slips out of reach

Strategy’s co-founder cast BIP-110 as a governance and neutrality issue, while miner support remained near 1% and the proposal’s 55% activation threshold drew scrutiny.

BTC

Fact Check
The claim's core content — that Michael Saylor's critique adds to opposition to BIP-110, arguing the temporary anti-spam soft fork undermines Bitcoin's neutrality, raises governance risks, and unsettles/reassures institutional confidence — is corroborated by CoinDesk, CryptoBriefing, and CryptoTimes. Saylor published '110 reasons against BIP-110' on July 19, 2026, explicitly citing neutrality, censorship precedent, and criticizing the 55% miner-signaling threshold as a governance risk. The separate 'consensus flaw that could split nodes' element derives from a distinct Dathon Pwn/Bitcoin News claim reported as unconfirmed. The claim slightly conflates the two stories in its title, but the substantive assertions are accurately supported by primary reporting.
Summary

Michael Saylor has sharpened opposition to Bitcoin’s proposed BIP-110 soft fork, arguing the measure turns a dispute over blockchain spam into a broader governance question about who gets to decide which fee-paying transactions remain valid. His comments add weight from Strategy, which holds about 843,775 BTC, as miner signaling remained very low and the proposal’s roughly 55% activation threshold continued to draw criticism. BIP-110 would impose a one-year soft fork that temporarily tightens limits on certain data-storage uses, including a stricter OP_RETURN cap, and would reject some transactions that are valid under Bitcoin’s current rules. Supporters say that would curb non-financial data storage and protect node resources. Critics, including Saylor, argue that using consensus changes to filter transactions by perceived purpose would set a dangerous precedent, raise the risk of a chain split and create uncertainty around Bitcoin’s neutrality and protocol stability. At 06:07 UTC on July 20, the monitor recorded 11 signaling blocks out of 1,236 tracked, or 0.89%, making the current difficulty period mathematically unable to meet the proposal’s early-lock threshold. Separately, support stood at about 1.3% as of July 13, and the voluntary signaling deadline falls around block 961,542 in August. Under the proposal, miners would need to signal support in about 55% of a 2,016-block window, far below Bitcoin’s historical 95% threshold for permanent consensus changes. If the threshold is not met, nodes enforcing BIP-110 would require version bit 4 from heights 961,632 through 963,647 and reject blocks that omit it, potentially forcing miners, nodes, exchanges and wallet providers to choose which chain to recognize. Saylor argues that fees and relay policies, rather than consensus-layer filtering, are the better tools for handling unwanted data traffic because they can be adjusted without a network-wide rules change.

Terms & Concepts
  • soft fork: A change to blockchain rules that makes some previously valid transactions or blocks invalid for upgraded participants.
  • OP_RETURN: A Bitcoin transaction feature often used to attach small amounts of data to the blockchain.
  • chain split: A situation where parts of a blockchain network follow different versions of the ledger after disagreeing on the rules.