ZKsync has announced a security upgrade for its EraVM chain, introducing an instant upgrade framework, extending execution delay from 3 to 24 hours, and developing a second prover called EraBender to counter AI-driven attacks. Over the next six months, all Boojum/EraVM chains will phase out old execution environments, with each chain setting its own transition timeline. Users holding funds via EOA need no action; those using smart contracts must follow the transition plans. The ZKsync Atlas chain is not affected.
ZKsync announced a security upgrade for its EraVM chain via its official X account on Thursday. The key measures include an instant upgrade framework for faster patching, extending the execution delay from 3 hours to 24 hours, and the development of EraBender, a second prover designed to defend against AI-driven vulnerabilities.
All Boojum/EraVM chains will gradually phase out the old execution environment within the next six months, with each chain publishing its own transition timeline. Users whose funds are held directly in externally owned accounts (EOA) are not required to take any action for now. However, users whose funds are held via smart contracts—including multisig wallets, smart accounts, DEXs, lending protocols, and others—must follow the instructions provided by the respective chain once the transition plan is finalized. The ZKsync Atlas chain remains unaffected by this upgrade.
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