Gemini now supports shielded Zcash withdrawals to the Ironwood pool, days after the NU6.3 upgrade sealed the vulnerable Orchard pool and 176,000

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.