Zcash seals $1.7 billion shielded pool as Ironwood upgrade activates
https://www.coindesk.com/tech/2026/07/28/zcash-seals-usd1-7-billion-shielded-pool-as-ironwood-upgrade-activates
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.