Key Takeaways:
Antpool, F2pool, Foundry, and 4 others joined the Stratum V2 Working Group on May 7, 2026.Stratum V2 offers miners up to 7.4% higher profitability through lower latency and better fee capture.Braiins and Spiral founded the Working Group in 2022, now entering a new deployment phase in 2026.The newer protocol addresses those problems. It uses end-to-end authenticated encryption, cuts bandwidth use by roughly 60% on the pool side and 70% for miners, and introduces a Job Declaration sub-protocol that lets miners build their own block templates instead of accepting what pools assign.
According to the official announcement, “By maintaining Stratum V2 as a public, vendor-neutral specification, we remove compatibility barriers and allow the ecosystem to focus on what matters most: improving efficiency, privacy, security, and miner autonomy, ultimately leading to increased profitability.”
Braiins Pool and DMND are already running Stratum V2 in production. DMND launched in 2025 as one of the first pools to offer full miner-selected templates. Blitzpool runs it for solo miners, and the Stratum V2 Reference Implementation community pool continues testing.
