Zcash rose 7.26% to $501.62 as developers set the Ironwood mainnet upgrade for July 28. Developer Sean Bowe said the upgrade will activate at block 3,428,143, expected around July 28 at 8 a.m. EST, with major organizations supporting Zcash committed to the NU6.3 activation. The upgrade follows discovery of a soundness flaw in the Orchard shielded pool in late May, which could have allowed fake ZEC creation without immediate detection. Zcash's Orchard pool is part of its privacy infrastructure, and developers responded with emergency patches in early June, including a soft fork that temporarily disabled the pool.
Ironwood Upgrade Sets July 28 Activation
Sean Bowe said the Ironwood mainnet activation height has been set at block 3,428,143, expected around July 28 at 8 a.m. EST. He said major organizations supporting Zcash are committed to activating NU6.3 at that height.
The bug could have allowed fake ZEC to be created without immediate detection, raising concern because Orchard is part of Zcash's privacy infrastructure. Developers responded with emergency patches in early June, including a soft fork that temporarily disabled the Orchard pool, followed by additional network changes to limit risk while the Ironwood fix was prepared.
Ironwood will introduce a new shielded pool based on revised Orchard code. A key feature is a public accounting checkpoint, often called a turnstile, that requires funds moving from the old Orchard pool to pass through a visible checkpoint before entering the new pool.
ZEC Price Recovers After Orchard Bug Disclosure
ZEC fell sharply after the Orchard flaw was disclosed, with reports placing the decline near 50% and the price bottoming close to $300. The token has since recovered, supported by emergency patches and the planned Ironwood activation.
Santiment said ZEC social volume reached 1,116 mentions on June 5, the same day the token formed a local low near $362. The analytics firm said social volume later dropped to between 24 and 69 mentions per day, even as the price recovered. Santiment described the pattern by saying, "The noise marked the bottom. The silence is marking the repair."
At press time, Zcash stood at $501.62, up 7.26% over the past 24 hours.
Analysts Monitor $800 Resistance Level
MCO Global's chart analysis said ZEC remains in a correction despite its recent rebound. The analyst said the larger pattern may still be a wave four correction, with ZEC possibly forming a triangle before its next larger move. Another possible path cited by the analysis is a WXY correction, under which ZEC could revisit a deeper support area before attempting another move higher.
The main support zone was placed between $90 and $203, while major resistance sits near $800. The analysis also pointed to weekly Fibonacci retracement levels at 38.2%, 50% and 61.8% inside the support area. On shorter time frames, ZEC recently traded around the $450 to $470 area after a strong rebound.
FAQ
What is the Zcash Ironwood upgrade scheduled for July 28?
The Ironwood upgrade is a mainnet activation set at block 3,428,143, expected around July 28 at 8 a.m. EST. It introduces a new shielded pool based on revised Orchard code and includes a public accounting checkpoint requiring funds from the old Orchard pool to pass through a visible checkpoint before entering the new pool.
Why did ZEC price fall after the Orchard bug disclosure?
ZEC fell sharply after the Orchard soundness flaw was disclosed in late May, with reports placing the decline near 50% and the price bottoming close to $300. The bug could have allowed fake ZEC creation without immediate detection, raising concern because Orchard is part of Zcash's privacy infrastructure.
What are the key technical levels analysts are watching for ZEC?
MCO Global's analysis placed main support between $90 and $203 and major resistance near $800. The analysis also pointed to weekly Fibonacci retracement levels at 38.2%, 50% and 61.8% inside the support area, with ZEC recently trading around the $450 to $470 area after a strong rebound.
