[ZIP-5] Upgrade Governance Contracts

ZIP-5 has been executed

ZIP-5

ZIP-5 upgrade was executed on March 7th [Etherscan link]

Planned Emergency Upgrade

The Emergency upgrade which called acceptOwnership() on the required contracts was executed on March 10th [Etherscan link]


For confirmation, users can query the owners of the bridgehub:
cast call 0x303a465B659cBB0ab36eE643eA362c509EEb5213 "owner()" --rpc-url <l1-rpc-url>

Response:
0x000000000000000000000000e30dca3047b37dc7d88849de4a4dc07937ad5ab3