Zcash Tests 25-Second Blocks on Public Testnet

Rickler Feed (@rickler_feed), Oct 5, 2026, 09:30 UTC

Zcash Tests 25-Second Blocks on Public Testnet Zcash activated NU7 on testnet, cutting the target block time from 75 seconds to 25 ahead of a planned November 5 mainnet launch. NU7 went live at testnet block 4,465,026, and both major node clients, Zakura and the Zcash Foundation's Zebra, now support it. Miners will get 40% of transaction fees, while 60% goes to a reserve for future mining rewards. The block reward drops to a third, so ZEC issuance stays on schedule. The upgrade also disables the old Sprout privacy pool. Developers will decide on mainnet activation on October 20. Anyone stil…

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