Base sets November 5 for Denim upgrade with 200ms mainnet blocks

Base has scheduled November 5 as the date for Denim's 200ms mainnet blocks. The upgrade removes Flashblocks subscriptions and pending-state access, so developers and indexers must rework their integrations. Traders should watch for any disruption to Base-based apps and data feeds around the rollout, though the change is technical rather than price-driving.