A more direct model for production support on the OP Stack. We're winding down the legacy support we ran through third-party rollup-as-a-service providers. Teams that want production support directly from OP Labs now work with us through OP Enterprise: one clear relationship with the team that builds the stack. Chains already on OP Enterprise are unaffected. More on why: https://www.optimism.io/blog/a-more-direct-model-for-production-support-on-the-op-stack(Optimism)