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StableCryptoReported 2026-09-07

Ethereum Foundation Announces Quantum-Resistant Roadmap

The Ethereum Foundation has outlined its priorities for the Protocol cluster, focusing on making Ethereum quantum-resistant by December 2029, with a self-imposed deadline and a plan to reach a minimum viable post-quantum state by December 2029.

Why it matters. Developers and stakeholders in the Ethereum ecosystem will need to adapt to the new roadmap to ensure the network's long-term security.

01

Who it touches

  1. 1Ethereum
  2. ← usesFact
    2FDUSDCurrency
  3. capacity constraint →Fact
  4. enables →Fact
  5. drives demand for →Fact
  6. depends on →Fact
    6Clear SigningTechnology
02

Evidence

  • EEthereum Foundation blogInstitution2026-09-07
    The EF Protocol cluster will treat this self-imposed deadline as non-negotiable at least until January 2027, when quantum progress will be reassessed with the…
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  • EEthereum Foundation blogInstitution2026-09-07
    MV-PQ is designed to keep Ethereum operating through Q-day with reduced guarantees.
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  • EEthereum Foundation blogInstitution2026-09-07
    Researchers are still defining exactly what that reduction in guarantees would look like.
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  • EEthereum Foundation blogInstitution2026-09-07
    The EF Protocol cluster is aiming for Ethereum L1 to be quantum-resistant across all three layers (execution, consensus, and data) by December 2029.
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  • EEthereum Foundation blogInstitution2026-09-07
    For now, Ethereum L1 should plan for Q-day happening as early as 2030.
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  • EEthereum Foundation blogInstitution2026-09-07
    Client teams can realistically begin Hegotá implementation in late Q4 2026.
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  • EEthereum Foundation blogInstitution2026-09-07
    Full resistance across execution, consensus, and data remains the December 2029 target.
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  • EEthereum Foundation blogInstitution2026-09-07
    Planning for Q-day in 2030 is a deliberately aggressive assumption.
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  • EEthereum Foundation blogInstitution2026-09-07
    That date lines up with the 2029 migration targets independently set by Google, Cloudflare, and Microsoft.
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  • EEthereum Foundation blogInstitution2026-09-07
    The August 19 Strawmap update added a minimum viable post-quantum (MV-PQ) L1 milestone at J*. The post-quantum public-key registry sits in I*. The post-quantum…
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  • EEthereum Foundation blogInstitution2026-09-07
    The EF Protocol cluster is aiming for Ethereum L1 to be quantum-resistant across all three layers (execution, consensus, and data) by December 2029. That date…
    View source