Overview
- Mandatory BIP-110 signaling began at block 961,632 on Sunday and nodes running enforcing software rejected the first non-signaling block, causing those nodes to follow a separate minority branch.
- Public miner signaling for BIP-110 remains about 2.5%, far below the 55% threshold required for early lock-in, so the enforcing branch is trailing the dominant BTC chain by many blocks and risks producing blocks very slowly or stalling.
- BIP-110 does not provide automatic replay protection during the current split window, so a transaction spent to sell coins on the new branch could be copied and accepted on the main chain and cost the sender real BTC.
- Bitcoin Knots has published enforcing builds and warned of hazards when switching between enforcing and non-enforcing clients while Bitcoin Core has not merged BIP-110, prompting some providers to consider pausing deposits and withdrawals.
- The signaling window runs through block 963,647 with the proposal’s data restrictions set to activate at block 965,664, and the eventual outcome will hinge on whether miners, exchanges and large holders back the enforcing branch as seen in the 2017 SegWit UASF episode.