According to Foresight News, Arbitrum announced that ArbOS 20 'Atlas' has been activated on Arbitrum Sepolia at 2:00 Beijing time today. Previously, Offchain Labs submitted the 'ArbOS 20 "Atlas"' AIP proposal to the Arbitrum community. The AIP proposed several improvements to Arbitrum, including the ability to publish batch L2 transactions on Ethereum in Blob form at a lower cost using EIP-4844, support for most changes included in the Ethereum Dencun upgrade, and two improvements to Arbitrum One and Nova batch releases. The proposed ArbOS 20 'Atlas' upgrade will be available for any Arbitrum adoption.