Since as early as October, developers have launched multi-client test networks, also called devnets, for EIP 4844. Tim Beiko, chair of the ACDE calls, said that the fifth devnet for EIP 4844 will be launched sometime next week.

Paritosh Jayanthi, a DevOps Engineer for the Ethereum Foundation, said that he is in the process of doing trial runs for clients like Ethereum JS (EL) and Lodestar (CL) to prepare them for the devnet launch next week.