Zcash's new Ironwood shielded pool attracted roughly $80 million in ZEC on its first day after the network sealed the old Orchard pool over a

The upgrade retires Orchard, where a counterfeiting bug sat undetected for four years. Every coin inside now has to leave through a gate that caps withdrawals at verified deposits.

The long-awaited network upgrade retires the vulnerable Orchard shielded pool and introduces new safeguards to protect the Zcash supply.