TL;DR
- Zcash developers unanimously targeted Nov. 5 for NU7 mainnet activation, following an Oct. 6 testnet launch and an Oct. 20 final decision on deployment.
- NU7 would cut block spacing from 75 seconds to 25 seconds, preserve the halving schedule and begin reintroducing previously removed supply in February 2031.
- ZEC rose 20% Thursday as privacy assets sharply outperformed, while the sector stood 213% above its level at Bitcoin’s October 2025 peak.
Zcash developers have unanimously aligned on a Nov. 5 target for activating the NU7 upgrade on mainnet, setting a clear timetable for one of the network’s most consequential updates in years. Testnet activation is scheduled for Oct. 6, followed by a final mainnet decision and activation-height selection on Oct. 20 after developers assess performance. The agreement gives NU7 a defined path toward deployment while preserving room to delay if testing exposes problems. The upgrade would cut target block spacing from 75 seconds to 25 seconds, disable version 4 transactions and integrate the Network Sustainability Mechanism.
NU7 is coming! All of the Zcash development orgs have come to unanimous agreement about the contents and timeline of our next network upgrade, following the sentiment collection results earlier this week.
Activation approximately November 5.
Learn more:https://t.co/3pSKptV9gO
— Sean Bowe (@ebfull) September 17, 2026
NU7 Keeps Halvings Intact While Speeding Up Zcash
The upgrade’s monetary design closely follows preferences expressed by ZEC holders this week. A weighted vote showed 98.9% support for preserving Zcash’s halving schedule, while 99.9% backed the proposal for faster blocks. That overwhelming support means NU7 will pursue higher transaction frequency without abandoning the supply schedule that mirrors Bitcoin’s periodic issuance reductions. Under the selected Network Sustainability Mechanism configuration, previously removed supply would begin returning in February 2031, creating a future adjustment without altering the established halving framework before then. The combination gives developers a mandate on both speed and monetary continuity.
Developer Sean Bowe said NU7 will not introduce new transaction formats and should have limited impact on wallets, reducing the likelihood of disruptive changes for everyday users. Full nodes, indexers and block explorers, however, may require adjustments to accommodate the upgrade. The technical scope appears deliberately constrained, pairing a shorter block interval with infrastructure changes that stop short of redesigning how users construct transactions. That narrower approach could help simplify rollout if the Oct. 6 testnet activation performs as expected, while the Oct. 20 checkpoint gives engineering teams time to evaluate whether mainnet activation on Nov. 5 remains appropriate.
The upgrade timeline arrives alongside a rise in ZEC’s price. ZEC gained 20% Thursday as privacy-focused cryptocurrencies outperformed the market. Glassnode data showed the privacy sector stood 213% above its level at Bitcoin’s October 2025 peak, while a basket excluding ZEC had risen about 85% over the past year. NU7 is therefore moving toward activation against a backdrop of unusually strong market interest in privacy assets. Whether that momentum persists through testnet and mainnet deployment remains separate from the engineering process, but the unanimous developer agreement removes one uncertainty around the upgrade calendar.
