Ethereum Foundation makes post-quantum security a core priority in 2026 protocol roadmap

The Ethereum Foundation unveiled its 2026 protocol priorities, flagging post-quantum security as a central focus alongside further increases to the gas limit to expand network capacity and resilience ^[1][4].

Development work will be reorganized into three core tracks—Scale, Improve UX, and Harden the L1—intended to provide deeper structural coordination between scaling, data availability, user experience, and Layer 1 security ^[2][3].

The update frames 2025 as a high-throughput year, noting prior gas-limit increases and signaling continued emphasis on capacity improvements in 2026 as the protocol roadmap shifts toward longer-term security and coordination ^[1][4].

The Foundation's 2026 protocol priorities emphasize both near-term capacity gains and long-term hardening—most prominently post-quantum readiness—through a three-track development structure intended to align scaling, UX, and core security efforts ^[1][2].