Ethereum Foundation Sets Updated Roles for Ethereum L1 and Layer-2 Networks

According to the Ethereum Foundation, a new vision document updates the L1 and Layer-2 framework for the first time in about five years, reflecting the ecosystem’s development since the rollup-centric roadmap.

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Summary

In an official blog post released on the 23rd, the Ethereum Foundation published a new vision document redefining the roles of Ethereum Layer-1 and Layer-2 networks for the first time in about five years. The update reflects how the ecosystem has changed since the rollup-centric roadmap was proposed. Ethereum L1 remains the permissionless global settlement layer, while Layer-2 networks are evolving beyond a narrow scaling role toward differentiated features, customized services, and greater autonomy. The foundation also said tightly integrated Layer-2 networks should pursue interoperability, shared liquidity, and Stage 2 mechanisms.

Terms & Concepts
  • Layer-2: A blockchain network built on top of a base chain to improve throughput, lower costs, or add specialized features while relying on the underlying chain for security or settlement.
  • Settlement layer: The base blockchain where transactions are ultimately finalized and recorded, providing the core security and trust foundation for the broader ecosystem.
  • Rollup-centric roadmap: Ethereum’s strategy of scaling mainly through rollups, which process transactions off the main chain while using Ethereum for security and final settlement.