Vitalik Buterin just told the Ethereum community to buckle up for another multi-year construction project. The co-founder unveiled the “Lean Ethereum” roadmap on July 4-5, describing it as the most significant redesign the network has undergone since it ditched proof-of-work back in September 2022.
The full rebuild is expected to take three to four years.
What’s actually in the plan
The roadmap, developed alongside Ethereum Foundation researcher Justin Drake, attacks three problems simultaneously: simplification, privacy, and quantum resistance. Full implementation of post-quantum cryptographic signatures is targeted for 2029.
On the technical side, the plan involves replacing quantum-vulnerable components with a recursive STARK-based verification mechanism. The roadmap also introduces a new multidimensional gas pricing system, which would let the network price different types of computational resources independently rather than lumping everything into a single fee.
