Block target 75 seconds → 25 seconds… Zcash (ZEC) NU7 activated

Zcash (ZEC) activated its NU7 upgrade on the mainnet at block 3,543,405 at 11:34 a.m. on the 6th, cutting the target block interval from 75 seconds to 25 seconds. The change is defined by technical proposal ZIP 218, which sets the target spacing the network aims for during block production rather than guaranteeing every block arrives at that exact interval. The faster cadence matters because shorter block times can speed up transaction confirmations on the privacy-focused chain, though confirmation latency for individual transactions is distinct from block spacing. ZecStats recorded the timestamp of the activation block, and the upgrade went live once the network reached the designated height rather than on the originally targeted November 5 date. What to watch next is whether the network sustains the 25-second target in practice and how the shorter interval affects confirmation times and throughput.