Zcash’s Ironwood upgrade could face a delay as Shielded Labs raises concerns over audits and the readiness of exchanges, miners and wallets.

Zcash’s Ironwood upgrade could face a delay as Shielded Labs raises concerns over audits and the readiness of exchanges, miners and wallets.

Developers say security testing has uncovered no new serious bugs as Zcash's Ironwood upgrade moves toward testnet activation.

Zcash targets July 21 for its Ironwood upgrade, sealing the Orchard pool and restoring ZEC supply verification.