TechFlow January 31 — At the 204th Ethereum Core Developers Execution Layer meeting (ACDE), developers announced the postponement of the public testnet upgrade timeline due to a new consensus bug in Pectra Devnet 5 affecting the Nethermind client.
The Nethermind team confirmed that the bug, caused by BLS precompile optimization, has been fixed and will not impact the launch of Devnet 6. Developers plan to revisit the testnet upgrade schedule during next week's ACD meeting.
Additionally, the meeting addressed a security vulnerability affecting the Geth client, which could impact Ethereum's peer-to-peer layer and Layer-2 scaling solutions. Nodes running Geth version 1.14 or higher are advised to immediately update to the latest release.
The updated Pectra upgrade roadmap is as follows:
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Week of February 3: Launch Devnet 6
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February 6 (Thursday): Next ACD meeting to finalize Holesky and Sepolia testnet upgrade dates
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February 10–11 (Monday or Tuesday): Official announcement of testnet upgrade details
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Around February 19: Holesky testnet upgrade
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February 20: ACD meeting to determine mainnet upgrade date
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Around February 26: Sepolia testnet upgrade (scheduled approximately one week after Holesky)
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February 27–28: Final mainnet upgrade specification release
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Middle of March: Ethereum mainnet upgrade
