Arbitrum Launches Timeboost, a New Way to Order Transactions

The Arbitrum project has launched Timeboost, a new way to order transactions, on its Arbitrum One and Nova networks.

Arbitrum has launched a new transaction ordering policy called Timeboost on Arbitrum One and Nova. The system offers "express lane" bidding for faster transaction processing but keeps the network's mempool private. At the same time, Arbitrum is rolling out Converge, a separate blockchain designed specifically for tokenized real-world assets, or RWAs, and decentralized finance (DeFi).

These moves mark a major step in Arbitrum's infrastructure expansion as activity heats up across Ethereum Layer 2s.

How Does Arbitrum’s Timeboost Work?

Focusing on Timeboost, this new policy allows users to bid for faster transaction processing on Arbitrum One and Nova. Aiming to cut down network delays, the system offers an optional "express lane" for bidders. Instead of creating speed races, this setup keeps the mempool private, reducing risks like front-running and sandwich attacks common on public blockchains.

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This new transaction ordering policy, Timeboost is now live on Arbitrum One and NovaThis allows users to bid for express lane access, which provides faster transaction inclusion while maintaining Arbitrum a private mempool.Why it matters: ?https://t.co/x9qZ8xPq9b

At the same time, Arbitrum is expanding its ecosystem with Converge, a new blockchain co-developed by Ethena Labs and Securitize. The platform is designed to handle transfers and processing for RWAs and on-chain finance. A total of $7 billion in assets are migrating to Converge at launch: $5 billion in Ethena’s USDe synthetic dollar reserves and $2 billion from Securitize’s tokenized assets.

Rather than using a volatile native asset for transaction fees, Converge will rely on stablecoins—specifically USDe and USDtb—to maintain consistent gas costs. This approach is intended to ensure accuracy and affordability for businesses managing tokenized assets.

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Transactions on Converge will settle on Celestia, while Layer 1 will handle stablecoin and NFT transfers. The chain will start with 100-millisecond block times, with plans to further reduce that to 50 milliseconds.

For security and development, Converge's security comes from validators staking sENA, a staked version of Ethena's native token. Developers also get the planned Stylus upgrade, enabling smart contracts in various languages, including Solidity, Rust, C, and C++.