Base has migrated its testnet from Goerli to Sepolia, which will become the only testnet starting in January next year.
According to official sources, Coinbase Layer2 network Base announced on October 19th that it has migrated its testnet from Goerli to Sepolia. Base Goerli and Base Sepolia will coexist from mid-October to January 2024, but Sepolia will become the only testnet for Base after that. This news was reported by BlockBeats.