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Major Bitcoin Pools Support Stratum V2 Implementation

Major Bitcoin mining pools unite to advance Stratum V2, aiming to modernize communication standards and enhance mining efficiency.

Sarah Chen
May 10, 2026 1 min read
Major Bitcoin Pools Support Stratum V2 Implementation

Seven prominent Bitcoin mining pools, including AntPool, Foundry, and F2Pool, have united to advance the Stratum V2 protocol, aiming to modernize communication standards for Bitcoin miners.

"Bitcoin mining is inherently a competitive and fragmented process. It’s a race for efficiency, where a millisecond can determine whether a miner wins a block or loses to a competitor," a representative noted.

This initiative, which began in 2022 through the efforts of Braiins and Spiral, now includes major players such as SpiderPool, MARA Foundation, DMND, and Block. Collectively, these entities represent over 75% of the Bitcoin network's hashrate.

Understanding Stratum V2

Stratum V2 is a revamped protocol intended to replace the outdated Stratum V1, used since 2012, facilitating enhanced communication between mining pools and individual miners.

The updated protocol introduces several key improvements:

  • End-to-end encryption;
  • More efficient management of mining farms;
  • Lower latency;
  • The ability for miners to independently create block templates.

This last feature is vital for promoting network decentralization, as it reduces the control that mining pools have over transaction selection for blocks. Moreover, developers anticipate that adopting Stratum V2 could boost mining profitability by up to 7.4% through improved efficiency and reduced data transmission costs.

However, analysts from CoinShares recently highlighted that approximately 15-20% of Bitcoin mining operations are currently unprofitable.