Zcash NU7 Upgrade Deploys with 25-Second Blocks and Fee Burns
Zcash has activated its NU7 upgrade, cutting block times to 25 seconds and permanently eliminating 60 percent of network transaction fees.

Privacy-centric blockchain network Zcash has successfully rolled out its Network Upgrade 7 on mainnet, bringing substantial architectural improvements to transaction speeds and token economics. The deployment of the Zcash NU7 upgrade slashes block confirmation intervals from 75 seconds down to 25 seconds, significantly accelerating transaction finality across the ledger, according to CryptoPotato.
In addition to tripling block generation velocity, NU7 introduces an economic mechanism that permanently removes 60 percent of all transaction fees from circulating supply. This fee-burning model is designed to stabilize block space demand, counteract inflationary block reward pressures, and create long-term structural value for native coin holders as transaction volumes expand.
The development marks an important technical milestone for zero-knowledge privacy networks, where shielded transactions historically demanded heavier computational resources and longer confirmation delays. By condensing validation times without compromising cryptographic confidentiality, the upgrade enhances the network's viability for point-of-sale integrations and rapid decentralized transfers.
Following the successful hard fork activation, node operators, ecosystem mining pools, and wallet service providers must ensure full compatibility with the updated consensus rules. Future focus will center on observing overall hashrate distribution, mempool performance under the new 25-second cadence, and the cumulative deflationary effect of fee burning on total circulation.
Key takeaways
- Network Upgrade 7 reduces Zcash block generation times from 75 seconds to 25 seconds.
- The protocol update permanently removes 60 percent of all network transaction fees from supply.
- Shielded transactions gain faster confirmation times without sacrificing cryptographic privacy.
