Ethereum co-founder Vitalik Buterin has introduced an extensive upgrade initiative titled “Lean Ethereum,” marking what he describes as the network's third significant evolution, comparable to last year's Merge. This multi-year rebuild is set to span three to four years, impacting nearly every aspect of the Ethereum protocol.
Key Aspects of the Upgrade
The announcement followed a gathering of Ethereum researchers in Berlin, building on previous discussions held in Svalbard earlier this year. The framework for this transition is detailed in a draft roadmap created by Ethereum Foundation researcher Justin Drake.
The upgrade plan includes seven network enhancements slated for completion by 2029, addressing transaction confirmations, data storage methodologies, and safeguarding against future quantum computing threats. Buterin emphasizes that “almost every major piece of the protocol will be replaced,” although existing applications will not be compelled to adapt.
Data Storage Innovations
A notable feature of the “Lean Ethereum” upgrade is the introduction of a cost-effective secondary data storage tier. Buterin envisions a future version of Ethereum where this new tier could accommodate up to 50 times more data than the current setup. He anticipates that transitioning to this storage option could reduce transaction fees by over 10 times for many tokens, NFTs, and DeFi applications. Complex platforms such as Uniswap would remain on the existing system, but no application would be mandated to migrate.
Focus on Quantum Safety and Privacy
Another priority that has emerged from this initiative is quantum safety. Buterin stated that protecting the network from potential quantum attacks has become an urgent concern, necessitating the overhaul of all cryptography components affected by quantum computing. Additionally, privacy improvements have been highlighted as a primary focus, with Buterin asserting that privacy is “no longer an afterthought” but a fundamental goal in this development process.
The upcoming upgrade, known as Hegota, is slated to be Ethereum’s last “pre-Lean” hard fork, and many future upgrades will integrate these significant changes. Buterin's comprehensive approach aims to position Ethereum to meet evolving technological challenges and enhance user experience across the platform.
