Odaily Planet Daily News According to official news, Arbitrum issued a statement stating that the Dencun upgrade has been successfully launched on the Ethereum mainnet, making it one of the largest upgrades to support L2 expansion of Ethereum. Now, with the Ethereum mainnet upgrade completed, the ArbOS Atlas upgrade is expected to be executed on all Arbitrum chains on March 14, 2024 at 9:41 am ET (9:41 pm Beijing time). Once the upgrade starts executing, expect it to take an hour or two for Blob transactions to start rolling out and for the new EIP-4844 pricing changes to start showing up. ArbOS Atlas also introduces additional Arbitrum fee reductions for Arbitrum One, which is expected to be activated on March 18.