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Summary

Only base-consensus and base-reth-node will support the Base Azul hardfork. If you are running op-node, op-geth or any other clients you will need to update prior to the activation date.
  • Add Osaka Support
  • Simplify Flashblocks Websocket Format
  • Enable a new multi-proof system for faster withdrawals and a path to stronger decentralization
  • Only Base Node Reth / Base Consensus will be supported

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Activation Timestamps

NetworkTimestampDate
mainnet17799912002026-05-28 18:00:00 UTC
sepolia17767080002026-04-20 18:00:00 UTC

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Required Software

LayerSoftwareMainnetSepolia
Execution (EL)base-reth-nodev0.9.0+v0.7.0+
Consensus (CL)base-consensusv0.9.0+v0.7.0+
-base/nodev0.16.0+v0.15.0+
See the Node Upgrade Guide for full migration instructions.

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Execution Layer

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Proofs