Major Bitcoin Mining Pools Commit to Stratum V2 Protocol Upgrade. Seven prominent Bitcoin mining pools, representing nearly 75% of global hashrate including Foundry, AntPool, F2Pool, SpiderPool, and MARA Pool have joined the Stratum V2 working group. This adoption represents a substantial push toward decentralizing block construction, potentially improving miner profitability, efficiency, security, and privacy by returning more decision-making to individual miners. The move is viewed as one of the most meaningful decentralization shifts in Bitcoin mining in recent years. Implementation timelines vary, but the broad industry backing signals strong momentum for the open standard originally developed to address limitations in the older Stratum protocol.