Base Sets November 5 Denim Activation as Apps Prepare for Native 200ms Blocks

TL;DR Base lists November 5 at 18:00 UTC for mainnet activation. Denim introduces native blocks at a 200-millisecond cadence. Applications using Flashblocks must prepare for a different stream. Base has put a specific time on its next network upgrade: November 5 at 18:00 UTC. The network’s status notice says mainnet is expected to remain operational through the Denim maintenance window and tells node operators to install the required release before activation. For applications, the headline change is a shift to native blocks every 200 milliseconds. That is more than a quicker progress indicator: software that reads blocks, receipts and timestamps has to understand what the new cadence means. Complete blocks arrive more often Base’s Denim documentation describes a move from one canonical block every two seconds to five complete blocks each second, replacing Flashblocks. Applications following the earlier stream need to migrate to canonical block and RPC streams. The distinction matters because applications build assumptions around the data they receive. A block identifier can be used to organize receipts, update a balance or decide when to refresh a trading screen. Increasing the fr...