Bitcoin protocol proposal BIP-110 reaches its first critical milestone in August 2026, with mandatory signaling beginning at block 961,632. The soft fork activates fully by early September 2026, introducing new transaction restrictions that will require some blockchain companies to adjust their operations and technical infrastructure.
What BIP-110 Changes
The proposal restricts several technical features including large data pushes, oversized output scripts, undefined witness versions, Taproot annexes, deep Taproot control blocks, OP_SUCCESS opcodes, and certain Tapscript conditionals. Existing UTXOs created before activation remain unaffected, and standard monetary transactions continue to function normally under the new rules.
BIP-110 uses a 55% signaling threshold and enforces restrictions for 52,416 blocks, approximately one year. The primary technical concern centers on potential chain splits between nodes running BIP-110-compliant software and those maintaining existing consensus rules.
Implications for Blockchain Companies
Most organizations holding Bitcoin as treasury reserves face minimal direct impact. Companies using Bitcoin for payments through third-party providers like Square will see operations largely abstracted from technical changes.
Mining operations face the most immediate considerations. Mining companies must evaluate which chain branch will gain dominant adoption and direct hashrate accordingly. Technical teams will need to monitor chainwork accumulation, signaling patterns, and market valuation across potential branches.
Exchanges and custody providers should prepare for settlement complexity during any chain split period. Standard six-confirmation requirements lose reliability when multiple chains exist independently. Technical operations teams should implement monitoring for both branches, extend confirmation thresholds for large transactions, and potentially pause high-value settlements during periods of uncertainty.
Companies operating their own full nodes must decide whether to upgrade to BIP-110-compliant software. Organizations supporting the proposal should transition their node infrastructure accordingly.
Career and Hiring Considerations
This activation creates demand for Bitcoin protocol specialists who understand consensus mechanisms, chain reorganization scenarios, and node operations. Companies running Bitcoin infrastructure will need technical staff capable of monitoring multiple chain states and implementing risk management procedures during potential splits.
Blockchain engineers with experience in protocol upgrades and node management will find their expertise particularly relevant as organizations prepare contingency plans. For most corporate Bitcoin operations, however, BIP-110 requires minimal operational changes if no persistent chain split occurs.
