The mandatory signal window for Bitcoin BIP-110 will open at block 961632, expected around August 9, 2026. As of 20:40 on July 27th (UTC+8), the on chain height is 959842, with approximately 1790 blocks remaining. The BIP-110 signal support rate is approximately 2.64%. BIP-110, officially known as Reduced Data Temporary Softfork, proposes to limit the size of certain data fields in Bitcoin transactions. The current signal support mainly comes from Ocean, independent miners, and small operators, while major mining pools such as Foundry, Antpool, ViaBTC, and F2pool have not yet switched to support. If the current signal level continues until block 961632, the node executing BIP-110 will reject blocks that have not issued version bit 4 signals and follow a few blocks that have issued signals.
