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Zcash NU7 upgrade cuts testnet block time to 25 seconds

Zcash has switched on its NU7 upgrade on public testnet, cutting the targeted block time to 25 seconds from 75 ahead of a planned 5 November mainnet launch.

Why it matters: The testnet trial lets exchanges, wallets and node operators check faster Zcash blocks and the new fee split before real ZEC is affected.

InvestIn.News NewsDesk · 1 min read
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Picture from CoinDesk for: Zcash NU7 upgrade cuts testnet block time to 25 seconds
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Original reporting: Shaurya Malwa, CoinDesk

Key points

  • NU7 activated at block 4,465,026 on public testnet, with the earlier separate testing network shut down.
  • Miners keep 40% of transaction fees while 60% goes to a reserve for future mining rewards, and the per-block reward falls to one-third.
  • Developers will review test results and decide on mainnet activation on 20 October, with 5 November still the target.

The test network uses coins with no monetary value.

NU7 also redirects fees: miners receive 40%, while 60% is removed from circulation into a reserve meant to fund future mining rewards. The upgrade disables transactions using Sprout, Zcash's oldest private-payment system, so holders with funds there must move them before mainnet activation to keep spending them through the existing system.

What to watch: Developers plan to review test results and decide on mainnet activation on 20 October, with 5 November still the target and no activation block set yet.

Read the full story on CoinDesk

Live updates on NewsFeeds:AltcoinsDesk editor: Keshav Aggarwal (accountable for this page; this summary was not edited by hand)

How this was produced: an AI model wrote this summary of CoinDesk’s report, which we credit and link above. Read our Editorial and AI policy. Spotted a mistake? See Corrections.

Not investment advice. Read the risk disclaimer.

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