Vitalik Buterin says Ethereum is preparing its 'biggest rebuild' since the Merge
Vitalik Buterin has unveiled a major long-term roadmap for Ethereum, dubbed the 'Lean Ethereum' rebuild, which aims to replace core protocol components over the next few years. The update prioritizes quantum-resistant cryptography, enhanced privacy features, and the adoption of recursive STARKs to improve network verification efficiency.
Why it matters
This overhaul represents the most significant technical shift for the world's second-largest blockchain since the Merge, directly addressing long-term security threats like quantum computing and scalability challenges.
He termed it the third major iteration of Ethereum after the 2022 Merge that switched the network from mining to a stake-based system, with almost every major piece of the protocol set to be replaced over three to four years while keeping disruption to existing applications low.
The article reports on technical developments and roadmap updates from a primary source without injecting political or subjective commentary.
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