Ethereum Unveils New Technical Details About Interop Layer

Why It Matters

EIL could eliminate the fragmentation of Ethereum's rapidly expanding L2 ecosystem, lowering development costs and improving user experience, thereby reinforcing Ethereum's dominance in the smart‑contract market.

Summary

Ethereum announced new technical details for its Interop Layer (EIL), a protocol that lets users send tokens, mint NFTs and trade across EVM‑compatible rollups without using bridges or separate wallet integrations. The system works with any rollup that settles to L1 and exposes a canonical bridge, and will be accessed via an EIL SDK or forthcoming ERC‑5792 standard, with ERC‑4337 and EOA wallets adding multichain validation modules. Public testing on testnet began on Nov 18, accompanied by $6,000 of bounties at ETHGlobal Buenos Aires, while a demo cross‑chain dapp aggregator called Stitch is already live. A mainnet launch will follow after feedback, testing and auditing.