Zcash主网已激活Ironwood NU6.3升级，引入新屏蔽池
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Zcash developers have reached a consensus on the Ironwood upgrade, which will introduce a new Orchard pool and restrict payment functionality in the old pool.
According to Foresight News , Sean Bowe, a core developer of Zcash, tweeted that Zcash organizations and protocol developers have reached an agreement on specific consensus rule changes for the Ironwood upgrade. Ironwood will introduce a new shielded pool using the Orchard protocol. Simultaneously, the Orchard circuit will add a consensus rule-controlled flag that disables payments to other users within the pool (while retaining change functionality) as a privacy protection mechanism. After the upgrade, the old Orchard pool will enable this restriction and prohibit fund transfers to the old pool by constraining valueBalance. New user payments must be made through the new pool, while migrating funds from the old pool to the new pool is encouraged. Furthermore, users can gradually prove that no fraudulent minting has occurred by migrating funds. Currently, all parties are in the implementation, specification development, and ecosystem support phase, and are advancing multiple auditing and formal verification processes.
Polymarket has listed a new listing: "Zcash Orchard privacy pools confirmed to have been exploited."
According to Odaily Seer, a new prediction event has been added to Polymarket regarding whether Zcash's Orchard privacy pool has been confirmed to have been exploited. On June 4th, the Zcash core development team revealed that it had deployed an emergency network upgrade to fix a critical cryptographic vulnerability in the Orchard privacy pool that could allow malicious attackers to create an unlimited number of ZEC tokens out of thin air. Because this vulnerability is cryptographically unprovable as to whether it has been exploited in the past, the independent support group Shielded Labs subsequently proposed on June 5th to deploy a new privacy pool and implement strict "turnstile-accounting" on tokens exiting Orchard during the NU7 upgrade at the end of July to check for counterfeit tokens. According to the predicted event settlement rules, if, before December 31, 2026, official sources or mainstream credible media confirm that the vulnerability was effectively attacked on the mainnet before being patched, the event will be settled as YES. Odaily Seer continuously focuses on the prediction market, seeing changes before pricing.
ZODL has proposed launching a new privacy pool, Ironwood, with plans to activate and enhance Zcash security by the end of July 2026.
ChainCatcher reports that ZODL, a core contributor to the Zcash ecosystem, has announced a new network upgrade solution and privacy pool, Ironwood, in collaboration with Tachyon, Valar Group, Zcash Foundation, and Shielded Labs. Ironwood will be built on the existing Orchard protocol and further enhanced for security through formal verification and additional independent audits.
Zcash will audit the supply of the recently patched Orchard liquidity pools.
PANews reported on June 5th that, according to official Zcash news, the development team plans to use a new auditing method to audit the supply of the recently fixed Orchard Shielded Pool, and stated that more technical details will be released later today.
Zcash has fixed a vulnerability that allowed for the unlimited issuance of ZECs; due to the privacy pool feature, it's impossible to verify whether it has been previously exploited.
According to Mars Finance, Taylor Hornby discovered a critical forgery vulnerability in Zcash's Orchard liquidity pool on May 29, 2026. Hornby reported the vulnerability to the Zcash Open Development Lab, and a fix was completed on June 2nd through collaborative efforts. This vulnerability could be exploited to secretly create an unlimited number of counterfeit ZECs within Zcash Orchard. Due to Orchard's privacy features, it is cryptographically impossible to prove whether the vulnerability had been exploited before the fix. The vulnerability existed since Orchard's activation in May 2022 until an emergency fix was deployed on June 1, 2026. With the assistance of AI tools, Hornby wrote a complete exploit and generated an unlimited number of undetectable counterfeit ZECs in a local testing environment. Currently, Shielded Labs is collaborating with other Zcash developers to explore network upgrade proposals to allow anyone to verify the integrity of Zcash's supply.
Zcash is nearing completion of its mathematical proof to prevent hidden issuance vulnerabilities; ZEC rises 12%.
According to Odaily Odaily, Zcash's native token ZEC rose more than 12% on Tuesday after the team responsible for developing its privacy pools said they were close to completing a mathematical proof to confirm that there was no undetectable forgery or over-issuance vulnerability in the latest Zcash shielded pools. This verification work is being carried out by Project Tachyon, targeting Zcash's upcoming Ironwood shielded pool. Zcash founder Zooko Wilcox stated that the project is on the verge of producing a mathematical proof, aiming to demonstrate that the latest Zcash privacy pool does not have undetectable proliferation vulnerabilities. This development stems from the disclosure last month of a serious forgery vulnerability in Zcash Orchard's shielded pool. At the time, this vulnerability caused market concerns that Zcash's privacy system might have undetectable hidden inflation risks, causing ZEC to fall by more than 40% within two days. Developers say that with the help of AI-assisted formal verification, proof work that might have previously taken years can now be compressed into weeks. This news pushed the ZEC back above $500, its highest level since early June. (The Block)