Zcash (ZEC) completed a critical emergency upgrade on June 3, 2026, addressing a vulnerability in its Orchard privacy pool that had triggered a coordinated network response over the preceding five days. The upgrade, designated NU6.2, restored full shielded transaction functionality while the market interpreted the rapid remediation as a sign of protocol maturity rather than fragility, propelling ZEC to a weekly gain of nearly 15% and a market cap of $10.27 billion.