Base announced that it will introduce fault proofs to its mainnet on October 30, marking an important step towards decentralization. After the introduction of this mechanism, anyone can monitor and challenge invalid withdrawal transactions without permission, eliminating the need for trust in third parties. The Base team stated that they have been working closely with Optimism to ensure the smooth launch and secure upgrade of fault proofs. During the upgrade period, all pending withdrawal transactions will need to be re-verified.