Arbitrum introduces auction-based transaction ordering policy ‘Timeboost’

Ethereum layer-2 network Arbitrum (ARB) announced on X that its new transaction ordering policy, Timeboost, is now live on Arbitrum One and Arbitrum Nova. The mechanism allows users to bid for faster transaction inclusion, effectively creating an “express lane” while maintaining a private mempool. Proceeds from the bidding process, in ETH or ARB, will be allocated to the Arbitrum DAO treasury.