Zcash NU7 upgrade goes live, leaves 12,224 ZEC stranded in Sprout pool
Zcash’s NU7 upgrade has rendered about $15 million in legacy Sprout funds unspendable, although a future network upgrade could potentially restore access.
Zcash’s NU7 upgrade has rendered about $15 million in legacy Sprout funds unspendable, although a future network upgrade could potentially restore access.
Zcash’s NU7 network upgrade activated Friday, making about $15 millionin ZEC held in the network’s legacy Sprout shielded pool unspendable.
The upgrade took effect at block 3,543,405 at 02:34 UTC, according to blockchain tracker ZecStats, which lists the Sprout pool balance at about 12,224 ZEC.
Under Zcash Improvement Proposal (ZIP) 2003, NU7 rejects version 4 transactions, the only format that supports spending Sprout funds. The remaining coins cannot be transferred under the new rules, but have not been burned.