Whitechain joins the OP Stack with Developer Mainnet access
Optimism distinguishes the available developer network from a full public launch planned for later in November.
Optimism says Whitechain has moved from an independent L1 to an Ethereum L2 on the OP Stack. Its November 5 announcement identifies Developer Mainnet as live for builders and partners, while placing the full public launch later in November.
Under OP Enterprise Self-Managed, Whitechain operates its network and controls configuration, with engineering support from the Optimism Foundation and OP Labs. The announcement attributes continuity of existing balances, contracts and addresses to Whitechain.
The product lesson is that shared tooling can reduce integration work without removing operational responsibility. Teams evaluating the network should distinguish developer access, public availability and support arrangements; technical support alone is not a security audit.