BNB Chain targets ‘around one second’ finality with Fermi hard fork

BNB Chain’s Fermi hard fork goes live on Wednesday, cutting BSC block times from 0.75 seconds to 0.45 seconds and tightening fast-finality rules.

BNB Chain’s Fermi upgrade, which goes live Wednesday, will cut BNB Smart Chain (BSC) block times from 0.75 seconds to 0.45 seconds and push transaction finality to “around one second,” positioning the network as one of the fastest major Ethereum Virtual Machine chains. 

The hard fork completes the final phase of BNB Chain’s “short block interval” roadmap and is framed as a performance and reliability upgrade rather than a cosmetic tweak.

With Fermi, BSC validators will produce blocks every 0.45 seconds, nearly halving the time it takes for transactions to be confirmed onchain. 

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