Bitcoin's contested BIP-110 "spam filter" proposal reaches its mandatory enforcement block around 961,632, expected Aug 7-8. Miner signaling support is only about 2.45-2.54%, and some exchanges, including Hardblock and Bitaroo, are preparing to freeze BTC deposits and withdrawals around the activation window.
Matters because: Even a low-probability chain-split risk could pressure short-term BTC liquidity and trigger temporary volatility.