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11/05/2026

Zcash Upgrade Threatens Access to Roughly $16 Million in Sprout

What happened: Approximately 12,226 ZEC, valued in the reporting at roughly $16 million, remained in Zcash’s original Sprout privacy pool on Thursday morning, compared with about 22,263 ZEC a week ear

Zcash Upgrade Threatens Access to Roughly $16 Million in Sprout

What happened: Approximately 12,226 ZEC, valued in the reporting at roughly $16 million, remained in Zcash’s original Sprout privacy pool on Thursday morning, compared with about 22,263 ZEC a week earlier. The NU7 upgrade is scheduled for block 3,543,405, estimated around 9:30 p.m. Eastern on November 5, and will reject v4 transactions—the format needed to spend Sprout coins. The upgrade also cuts the block interval from 75 seconds to 25 seconds; only about 40 ZEC reportedly left Sprout on Wednesday.

Why it matters: This is an access deadline: valid private keys will not make remaining Sprout funds spendable under the scheduled transaction rules. Although the research notes that a future upgrade could theoretically restore access, no such restoration is guaranteed, making the migration deadline consequential for affected holders. The reported dollar valuation is approximate and should not be read as a current ZEC price quote.

Sprout dates to October 2016 and has been superseded by Sapling and Orchard. Its remaining balance illustrates the coordination challenge created when a protocol retires an old transaction format: technical changes still depend on holders responding in time. The supplied figures show substantial departures over the preceding week, but Wednesday’s much smaller movement leaves uncertainty about how much will remain when activation arrives.

Sources: CoinDesk; Crypto Briefing.