The Ethereum Foundation published a roadmap on September 7 targeting a fully quantum-resistant Ethereum layer 1 by December 2029. This protection covers execution, consensus, and data availability, the three main components of Ethereum’s base layer. The goal is to replace vulnerable cryptographic systems before sufficiently powerful quantum computers emerge, potentially as early as 2030. The Foundation set December 2029 as an effectively non-negotiable deadline until at least January 2027. The Glamsterdam upgrade targeted for December 2026, followed by Hegotá, represent the preparatory steps toward quantum resistance.
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