According to ChainCatcher, according to Optimism governance information, OP Labs protocol engineer Mofi released an upgrade proposal Granite Network Upgrade, which aims to address the security vulnerabilities found in a series of third-party security audits of Spearbit, Cantina and Code4 rena. The relevant vulnerabilities have not been exploited and user assets have never been threatened. The proposal stated that the upgrade will include a series of smart contract upgrades to fix the vulnerabilities found in the audit, as well as L2 hard forks to improve the stability and performance of the error-proofing system. Out of caution, the permission fallback mechanism has been activated to avoid any potential instability during the patching of the vulnerability.

If the proposal is voted through, the Granite Network Upgrade is scheduled to take place at 16:00 UTC on September 10. The upgrade has been coordinated with Base and Conduit to be launched on the internal development network and Sepolia Superchain.