Reporting · markets
Zcash NU7 upgrade activates at block 3,543,405 with faster block spacing
Zcash's NU7 network upgrade is live, shortening target block spacing and routing a share of fees to a public reserve, with node operators urged to update.
Quick take
- Cutting target block spacing from 75 seconds to 25, the NU7 upgrade went live on Zcash at mainnet block 3,543,405.
- The network now sends 60 percent of fees to a public reserve, while miners receive the remaining 40 percent when fees are collected.
- Node operators must move to an NU7-compatible client or risk falling off the consensus chain.
According to NewsBTC, mainnet block 3,543,405 is where Zcash's NU7 upgrade took effect. Under the change, the target spacing between blocks falls from 75 seconds to 25 seconds, though the publication describes that figure as a statistical expectation rather than a guarantee.
The upgrade also scales the block reward to limit how much new issuance can grow. A Network Sustainability Mechanism now routes fees to a public reserve. According to the accounts, that reserve receives 60 percent of fees, while the remaining 40 percent goes to miners when fees are collected. The fee split is set out in those accounts, which describe the reserve as a public pool.
The Zebra 7 release notes confirm the same activation height. Node operators must move to an NU7-compatible client, and outdated nodes risk being left off the consensus chain. Support for version-four transactions has also been retired, which affects the Sprout pool.
Wallets and exchanges may adopt the new NU7 features slowly. The shift touches how blocks are timed and how fees are split, so software updates matter across the network.
Sources
Machine-written from the publishers’ reports and checked against them · How Dextape writes