pending-tag reads with newHeads, logs, and latest, and check any limit or logic that counts blocks. See Base Denim: 200 ms blocks and Stream real-time transactions on Base.Chainstack updates: November 6, 2026
Base’s Denim upgrade activated on Base Mainnet: 200 ms blocks replace 2-second blocks, and Flashblocks are retired. Move to newHeads, logs, and latest.
Base. Base’s Denim upgrade activated on Base Mainnet on Nov 5, 2026, at 18:00 UTC: Base now produces a canonical block every 200 ms instead of every 2 seconds, and Flashblocks are retired. Replace Flashblocks subscriptions and
Last modified on November 6, 2026
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