Optimism Plans Layer 2 Hard Fork After Security Audits

Optimism's network has been reverted to a permissioned state while vulnerabilities found in third-party audits are patched, and OP Labs has proposed a "Granite" upgrade to fix them. The upgrade includes smart contract changes and a layer 2 hard fork meant to improve the performance of the fault proof system, which went live on mainnet in June. OP Labs said none of the identified vulnerabilities had been exploited and that no user assets were ever at risk, a claim Mofi Taiwo, a protocol engineer at OP Labs, repeated in the proposal. If the community votes to pass it, the upgrade would execute on Sept. 10 at 16:00:01 UTC, and some governance delegates raised concerns about a hard fork that has not been audited.