Arbitrum One Completes Shadow Fork Migration with Mainnet Migration on August 31st

Arbitrum Developers announced that the team completed a shadow fork migration successfully on Arbitrum One yesterday. The mainnet migration of Arbitrum One to Nitro will start on August 31st at 10:30am ET, and the process is expected to take between 2 to 4 hours, in which there will be downtime at the chain and infrastructure level.