Ronin Chain's Saigon testnet is set to migrate to the Ethereum mainnet this Thursday, February 5, 2026. This transition marks Ronin's return to Ethereum and its upgrade to a Layer 2 solution. A hard fork is scheduled at block height 45,528,550, occurring at 23:58:55 UTC. During this process, the testnet chain ID will be updated to 202601, while the mainnet chain ID will remain unchanged.