Optimism is expanding its role as an Ethereum chain operator. Unichain, an Ethereum Layer 2 chain under Uniswap Labs, plans to transfer its production sequencing, public node access, monitoring, and incident response operations to Optimism, according to its migration announcement on October 9. The planned testnet migration will take place on October 13, with the mainnet migration scheduled for October 29. This move will allow Optimism to centralize the management of more chain operations, while Ethereum's backup routing will depend on the contracts deployed by each chain.