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Base Switches Off Flashblocks as Denim Goes Live: The Migration Risks Behind 200ms Blocks

NullTX·November 6, 2026·1 min read
Base Switches Off Flashblocks as Denim Goes Live: The Migration Risks Behind 200ms Blocks

Base's Denim upgrade replaced Flashblocks with five canonical blocks per second, effective November 5. The migration affects sequencers, RPC providers, and smart contract developers. After sixteen months of promises, Base's fastest blocks are now the ledger itself, marking a significant technical transition for the network.

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