ZKsync Announces EraVM Security Upgrade, Phasing Out Legacy Execution Environment Over the Next 6 Months

TechFlow reports on September 4 that according to the official ZKsync X account (@zksync), ZKsync has announced security upgrades for its EraVM chain. Key measures include introducing an instant upgrade framework, extending execution delays from 3 hours to 24 hours, and developing a second prover, EraBender, to defend against AI-driven vulnerability attacks. Over the next six months, all Boojum/EraVM chains will gradually phase out the legacy execution environment, with each chain formulating and publishing its own transition timeline.

Users holding funds directly via EOA currently need to take no action; users holding funds through smart contracts such as multisig, smart accounts, DEXs, and lending protocols must take action as required once each chain's transition plan is finalized. The ZKsync Atlas chain is unaffected by this upgrade.