MEV-Boost Status Update - July 29 - Aug 12, 2022

This MEV-Boost status update covers the past two weeks, from July 29th to August 12th.

Development updates


Goerli Has Officially Merged - and Relay is Live 🎉 https://builder-relay-goerli.flashbots.net
  • The third and final testnet Goerli network transition to proof-of-stake (PoS) occurred when the Terminal Total Difficulty (TTD) exceeded 10,790,000, around 1:45 UTC
  • MEV-Boost v0.7.8 has been released - and includes the -goerli flag

Validator Registrations on Goerli/Prater

Much appreciation to jcrtp#0477 from Rocketpool and Yorick from EthStaker for flagging issues registering validators with various client configurations on the Goerli network. According to the builder-spec, only pending or active validators should be sent to MEV-Boost for validator registration, and not exited validators. Github issues to implement this designation have been filed with Nimbus, Teku, and Lighthouse. Prysm does not appear to be affected by this problem. We are grateful for your testing support, and will continue to monitor progress. Please refer to 502 During Validator Registration with an Exited Validator #245 for further updates and contributions.

Live Flashbots MEV-Boost Relays

Relay API Spec

  • Data API to get recently delivered payload data is deployed on all networks
  • The Data API can be used by blockchain explorers to check if a given slot (or slot+blockhash combo) was delivered by a Flashbots relay:

Relay Monitor:


Various Updates

Testing and implementation

Consensus-layer client implementation status

🎉 done
🎉 done
🎉 done
🎉 done
🎉 done
Testnet ready

Content and education

⚡Overhaul of our documentation and updates to docs.flashbots.net coming soon!

MEV-Boost setup + Q&A on EthStaker’s Merge Workshop series - Aug 19th at 15:00 UTC

Successful MEV-Boost testing through Goerli Shadow Fork 6 Merge

Understanding liveness risks from MEV-Boost

Get involved

🛠️ Help us test mev-boost and our relay+builder on all the testnets - available on Kiln, Ropsten and Sepolia. See also detailed instructions at https://github.com/flashbots/mev-boost#usage

💡 Learn more about mev-boost at https://github.com/flashbots/mev-boost, and about Flashbots at docs.flashbots.net

💬 Reach out via , and #mev-boost in the Flashbots Discord