Optimism - OP Mainnet: scheduled 200 ms subblocks enablement – Maintenance details

We are performing scheduled maintenance on the OP Mainnet sequencer infrastructure to transition sequencer leadership to a new set of sequencers. As part of this transition, OP Mainnet will move from 250ms flashblock production to 200ms subblock production.
No service disruption is expected: block production should continue uninterrupted throughout the transition. This maintenance window is precautionary, and we will confirm once the transition is complete.