854 blocks remaining until Zcash (ZEC) NU7… target interval 75 seconds → 25 seconds

Zcash (ZEC) is approaching its NU7 network upgrade, with 854 blocks remaining to the foundation's mainnet activation height of 3,543,405 as of 5:43 p.m. KST on the 5th, when the chain stood at block 3,542,551 per ZecStats. The Zcash Foundation's Zebra 7.0.0 release notes, published October 22, targeted mainnet activation around November 5, but documentation is inconsistent: ZIP 259 remains in "Proposed" status and the official NU7 page lists no activation height yet. NU7 matters because it would cut the target block interval from 75 seconds to 25 seconds, a threefold increase in block production speed with implications for throughput and issuance timing. Traders should watch for the activation height to be finalized in ZIP 259 and for the remaining block count to close, since the upgrade triggers on block height rather than a fixed date.