Source publication: November 6, 2026, at 21:29:20 UTC+8.
Status at publication: Reported as an upcoming change; the supplied article gives no activation date or confirmation of completion.
Zcash’s NU7 upgrade will permanently freeze about 12,224 ZEC, valued at roughly $15.6 million, according to Tyler Warner’s Morning Minute newsletter published by Decrypt.
What changes under NU7
The upgrade will invalidate the only transaction format capable of moving coins out of Sprout, Zcash’s original privacy pool introduced in 2016. According to the report, that change will leave the affected ZEC permanently frozen.
NU7 will also reduce the network’s target block time from 75 seconds to 25 seconds. This is a change to the target interval, not a guarantee that every block will arrive exactly 25 seconds after the previous one.
Calendar status
The newsletter describes these changes prospectively but supplies no activation date, block height or implementation confirmation. Its November 6 publication date should therefore not be treated as NU7’s activation date.
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