Stratum V2 Firmware: Which Miners Support SV2 in 2026

Braiins OS is the most established native Stratum V2 firmware and supports a range of Antminer models including the S9, S17 and S19 series, with newer models added over time. Always confirm support for your exact model on the official site. Other firmware projects are adding V2 support at different rates, and stock factory firmware on most ASICs is still Stratum V1 only.

AxeOS, the Bitaxe firmware, is built on Stratum V1 today, with native V2 support in active development. Until it ships in your build, the reliable way to run a Bitaxe over V2 is a translation proxy in front of it, which we cover in the dedicated Bitaxe SV2 guide.

Yes. A Stratum V2 translation proxy speaks encrypted V2 to the pool and plain V1 to your existing miners, so any V1 hardware benefits from V2 security without a firmware change. It is the universal fallback when native support is missing.

Braiins OS is free, open firmware. Once installed, you set the pool endpoint and authority key like any Stratum V2 pool, so it works with mkpool's SV2 endpoints. Follow the manufacturer's flashing instructions for your specific model before changing firmware.

No. mkpool is non-custodial and zero-fee regardless of firmware or transport. Native V2, a proxy, TLS, or plain V1 all mine to your own address, and any block you find pays you directly. Firmware only changes how securely the connection is carried.