We gave support and maintained the last 7 EIP-4844 devnets:

• devnet-9: https://github.com/jimmygchen/eip4844-devnet/pull/12
• devnet-8: https://github.com/Blobscan/blobscan/pull/139
• devnet-7: https://github.com/Blobscan/4844-devnet/commit/8f402eddd5445d24bf12d76459bbeb273680ffa6
• devnet-6: https://github.com/Blobscan/4844-devnet/pull/6
• devnet-5: https://github.com/Blobscan/4844-devnet/pull/3
• devnet-4: https://github.com/Blobscan/4844-devnet/pull/1
• devnet-3