On January 31, Ethereum developers at the 204th ACDE (All Core Developers Execution Layer) meeting stated that due to a new consensus bug in Pectra Devnet 5 affecting the Nethermind client, developers have decided to postpone the specific upgrade timeline for the public testnet. The Nethermind team said that the bug caused by BLS precompile optimization has been fixed and will not affect the launch of Devnet 6. Developers plan to discuss the testnet upgrade timeline again at the next ACD meeting. Additionally, the meeting also discussed a security vulnerability affecting the Geth client, which could impact Ethereum's peer-to-peer layer and Layer-2 scaling solutions. Nodes running Geth 1.14 or above need to update to the latest version immediately.
The Pectra upgrade timeline is as follows:
Week of February 3: Launch of Devnet 6
February 6 (Thursday): Next ACD meeting to decide the upgrade timeline for Holesky and Sepolia testnets
February 10-11 (Monday or Tuesday): Release official announcement for testnet upgrades
Around February 19: Holesky testnet upgrade
February 20: Developer meeting to decide the Ethereum mainnet upgrade timeline
Around February 26: Sepolia testnet upgrade (planned approximately one week after Holesky upgrade)
February 27-28: Release final version of mainnet upgrade
Mid-March: Ethereum mainnet upgrade
