Base, the Ethereum layer 2 network developed by Coinbase, announced Tuesday evening its first independently built network upgrade, dubbed Azul, targeting mainnet activation on May 13.
The upgrade marks a “major step” in Base's push toward Stage 2 decentralization — the highest trust-minimization standard for Ethereum L2s, according to the Base Engineering Blog post announcing the upgrade.
The centerpiece of Azul is a multiproof system that combines two independent proof mechanisms — a trusted execution environment (TEE) prover and a zero-knowledge (ZK) prover — into a single security layer. Either can finalize a transaction on its own, but when both agree, withdrawals from Base to Ethereum settle in as little as a day, the post notes. This architecture satisfies a core Stage 2 requirement: the ability to detect and handle proof system failures entirely on-chain.
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