[Base Mainnet Completes Denim Upgrade, Block Generation Speed Increased to 200 Milliseconds] Base's fourth independent network upgrade, Denim, is now live on the mainnet. The network now generates a complete canonical block every 200 milliseconds. This upgrade discontinues Flashblocks; applications must migrate to standard block subscriptions. Denim introduces BaseTime to support smart contracts obtaining millisecond-precision timestamps and updates B20 token transfer limits and compliance controls. (Source: The Block)