Arbitrum DAO is conducting a critical vote to upgrade the Arbitrum One and Nova chains to the Bounded Liquidity Delay (BoLD) protocol through an improvement proposal (AIP). This protocol is expected to launch on the testnet in April 2024 and be implemented on the mainnet in February 2025. The BoLD protocol aims to enhance the security of withdrawals to the Ethereum mainnet by introducing a fixed time window and open verification permissions, thereby reducing the risk of malicious delay attacks. This initiative demonstrates Arbitrum's proactive progress in enhancing on-chain security.