Ethereum co-founder Vitalik Buterin outlined an ambitious overhaul that he expects to match the scale of the 2022 Merge and take an estimated three to four years to complete. Central to the effort is quantum safety, which Buterin said has "shifted up a LOT in priority" as the network prepares for future cryptographic threats. He indicated that the Hegota hard fork, scheduled for later this year, will likely be Ethereum's final "pre-Lean" upgrade, marking a transition point toward a leaner protocol architecture. The comments signal a major long-term roadmap shift for Ethereum, framing the coming years around foundational changes rather than incremental updates. Developers and stakeholders will be watching how the network manages such a lengthy and complex transition while maintaining stability and security across the ecosystem.
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