TL;DRVitalik Buterin has introduced the Lean Ethereum roadmap, with upgrades planned over the next three to four years.The roadmap prioritizes quantum-resistant cryptography, native STARK verification, and improved network scalability.Ethereum also plans to expand programmable privacy and introduce a scalable state architecture capable of handling up to 100TB by 2030.The upcoming Glasterdam upgrade is expected to raise Ethereum’s gas limit, boosting the network’s transaction capacity.Ethereum’s long-term development roadmap is taking center stage after co-founder Vitalik Buterin unveiled a sweeping vision for the network’s next phase of evolution.Dubbed “Lean Ethereum,” the roadmap lays out a series of protocol upgrades expected to unfold over the next three to four years. The initiative aims to strengthen Ethereum’s security, improve scalability, expand privacy capabilities, and prepare the blockchain for future technological threats, including quantum computing.Europe's Largest Fintech Revolut to Stop Supporting USDT on August 31European fintech giant Revolut has notified users via app push notifications and emails that it will delist USDT. Users will still be able to purchase USDT until July 6. Revolut will stop accepting new USDT… pic.twitter.com/ImjlZ18tsF— Wu Blockchain (@WuBlockchain) July 4, 2026The proposal comes as Ethereum continues refining its post-Merge architecture while developers work toward making the network more efficient and resilient for long-term adoption, a move that has had quite some effects on its price. Lean Ethereum Prioritizes Quantum Security and Network EfficiencyOne of the biggest priorities outlined by Buterin is making Ethereum resistant to future quantum computing threats. He proposed replacing the network’s remaining quantum-vulnerable cryptographic components with post-quantum alternatives, reflecting what he described as a growing urgency around quantum security.Another key objective is integrating recursive STARKs as a native verification component. STARKs are cryptographic proofs designed to verify computations efficiently while improving scalability and security. Making them native to Ethereum could simplify verification processes across the network.The roadmap also introduces a new “scalable state” architecture capable of expanding to roughly 100 terabytes by 2030. According to Buterin, the approach could reduce transaction costs for certain token types by more than tenfold while allowing Ethereum to handle significantly larger amounts of on-chain data.Network capacity is also expected to improve through the upcoming Glasterdam upgrade, which Buterin said should substantially increase Ethereum’s gas limit. A higher gas limit would allow more transactions and computational work to fit into each block, improving throughput without fundamentally changing the network’s architecture.Privacy Becomes a Core Ethereum GoalBeyond scalability and security, the roadmap elevates privacy to one of Ethereum’s central development goals.Buterin said the project will explore RISC-V or leanISA virtual machine designs to support programmable privacy while maintaining scalability. Rather than treating privacy as an optional feature, the roadmap positions it as a core part of Ethereum’s long-term evolution.The proposed changes extend across multiple layers of the protocol, making the roadmap comparable in scope to previous landmark upgrades such as The Merge, which transitioned Ethereum from proof-of-work to proof-of-stake in 2022.While the roadmap presents an ambitious technical vision, its implementation will likely depend on Ethereum’s ability to deliver complex upgrades over several years.The proposal arrives during a period of organizational change at the Ethereum Foundation, which has recently undergone restructuring aimed at streamlining operations. Those changes have prompted broader discussions within the community about how quickly major protocol improvements can be delivered.The post Vitalik Buterin Unveils ‘Lean Ethereum’ Roadmap With Focus on Quantum Security and Scalability appeared first on Blockonomi.