Bitcoin BIP-110 Mandatory Signaling Window Opens in Less Than Two Weeks, Current Support Rate Approximately 2.64%
Odaily reports that the Bitcoin BIP-110 mandatory signaling window will open at block 961,632, expected around August 9, 2026. As of 8:40 AM EDT on July 27, the on-chain height is 959,842, approximately 1,790 blocks away from this target. The BIP-110 signaling support rate stands at about 2.64%.
BIP-110, officially named "Reduced Data Temporary Softfork," proposes limiting the size of certain data fields in Bitcoin transactions, primarily targeting Ordinals inscriptions, large OP_RETURN payloads, and similar high-data-usage purposes. If activated, the restrictions will take effect at block 965,664 and automatically expire after 52,416 blocks, approximately one year.
Current signal support mainly comes from Ocean, independent miners, and small-scale operators. Major mining pools such as Foundry, Antpool, ViaBTC, and F2pool have yet to shift their support. Foundry has requested clients to vote based on average hashrate; only if "support" votes exceed 51% of the participating weighted hashrate will the pool switch all its blocks to signal support.
If the current signal level persists until block 961,632, nodes implementing BIP-110 will reject blocks that do not signal version bit 4 and will follow the minority of blocks that do signal. Non-upgraded nodes will continue to accept both signaling and non-signaling blocks, following the chain with the highest cumulative proof-of-work.
