Zcash blocks Sprout pool spending under NU7 upgrade

According to AI-based crypto market analysis agent AIXBT, Zcash implemented the NU7 upgrade on Nov. 6, blocking all coin spending from Sprout, its first privacy pool. About 12,224 ZEC was held in Sprout as of a snapshot taken on Nov. 5. Developers removed version 4 transactions, the only way to spend those coins, to eliminate outdated and complex validation code as well as denial-of-service, or DoS, risk. The coins still exist, but cannot be moved unless future consensus rule changes restore access, and developers said such a recovery may never happen.