On July 28, the mandatory signal window for Bitcoin BIP-110 will open at block 961632, expected around August 9, 2026. As of July 27 at 8:40 AM (EDT), the on-chain height is 959842, leaving approximately 1790 blocks until that block, with a support rate for BIP-110 at about 2.64%. BIP-110, officially named Reduced Data Temporary Softfork, proposes to limit the size of certain data fields in Bitcoin transactions, primarily targeting Ordinals inscriptions, large OP_RETURN payloads, and similar high-data-use cases. If activated, the restrictions will take effect at block 965664 and will automatically expire after 52416 blocks, roughly one year later. Current support mainly comes from Ocean, independent miners, and small operators, while major mining pools such as Foundry, Antpool, ViaBTC, and F2pool have yet to shift their stance to support. Foundry has requested its clients to vote based on average hash power, stating that the pool will only switch all blocks to support the signal if the 'support' votes exceed 51% of the participating weighted hash power. If the current signal level persists until block 961632, nodes executing BIP-110 will reject blocks that do not emit version bit 4 signals and will follow the minority of blocks that do emit signals. Non-upgraded nodes will continue to accept both signaling and non-signaling blocks and will follow the chain with the highest cumulative proof of work.