London

• Improved builder architecture for faster block building and improved go routines for slot and bounty submissions, cutting down bidding, building and submission total time by ≈60%.
• New bounty bid submission functionality for slot.
• Builder block verification and sanity checks.
• Builder block publishing from builder software as failsafe for network.
• RPBS improvements; encoding transaction bytes for data compression and signature generation.
• Block bid structure changed to allow ECDSA signing over key values, ensuring proven ownership of RPBS public key, builder public endpoint and bid payload.
• Updated relay API routes.
• Improved builder slot time gatekeeping.
• Updated package dependencies.
• Geth Krogam upgrades towards supporting coming Cancun Fork, remove ethHash across geth and upgrade graphQL schemas, bug fixes.
• New Builder RPC for private order flow and MEV bundle submission directly to builders for block inclusion.
• Updated builder command line flags and startup to allow for builder bundles and unique builder configurations.
• Bid submission to default to the next slot if the target slot is not provided.
• Improved garbage collection for cached data.
• Builder type upgrades.
• Changed builder bid response to show all bids and include all execution timestamps for bid requests, block production through to submission.
• Bug fixes to multiBeacon client.