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BIP-110 soft fork set for early September 2026 activation
The proposal’s mandatory signaling begins around Aug. 9, 2026, with new transaction restrictions slated to lock in by late August and activate on the projected early-September timeframe.
Bitcoin Magazine outlines how corporations that use the Bitcoin network may need to consider the upcoming BIP-110 soft fork, which is approaching a first consequential activation boundary.
According to the article, BIP-110 enters mandatory signaling at block 961,632, projected around August 9, 2026. It would lock in no later than block 963,648, roughly in late August, and activate its new transaction rules at block 965,664, projected for early September.
BIP-110 would use a 55% signaling threshold and enforce its restrictions for 52,416 blocks, about one year. The article says the proposal restricts large data pushes, oversized output scripts, undefined witness versions, Taproot annexes, deep Taproot control blocks, OP_SUCCESS opcodes, and certain Tapscript conditionals.
The piece also notes that BIP-110 grandfathers UTXOs created before activation, while standard monetary uses remain compatible. It argues that for most corporations, the typical Bitcoin use case as a long duration treasury reserve asset would be “basically unaffected,” and that on chain and Lightning payments would have limited direct impact because many payment flows rely on third party providers and Lightning transactions occur off chain.
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