Attention! Tomorrow: An Altcoin Will Receive a Major Update! It Has Been Heavily Criticized

cryptonews.ruPublished on 2026-07-27Last updated on 2026-07-27

Abstract

The privacy-focused cryptocurrency project Zcash is preparing to activate its network upgrade NU6.3, codenamed Ironwood, on July 28, 2026. The upgrade will be deployed on the mainnet at block height 3,428,143. Ironwood will introduce a new shielded transaction pool and a v6 transaction format to the Zcash network. Key features include "confidential recoveries," designed as a safeguard against future quantum computing risks, and a "turnstile" mechanism. This mechanism aims to strengthen verification of the total $ZEC supply, addressing previous criticism and concerns about a potential vulnerability in the old Orchard pool that could have allowed counterfeit $ZEC creation. The goal is to enforce stricter control over supply stability when funds are moved to the new pool. The activation height in the test network was previously set at block 4,134,000.

The privacy-focused cryptocurrency project Zcash is preparing to activate the network update NU6.3, codenamed Ironwood, on July 28, 2026.

According to the Zebra 6.0.0 release notes, the update will be deployed on the mainnet at block height 3,428,143. This block height is expected to be reached around 16:00 Turkish time on July 28.

The Ironwood update will add a new shielded transaction pool and a v6 transaction format to the Zcash network. The new pool will use the Action structure from the Orchard system and the Proof-of-Work system from Halo2, while having its own note commitment tree, nullifier set, chain value pool, and transaction history metadata.

Among the most notable features of the update are privacy records designed for recovery in the event of future quantum computing risks, as well as a 'turnstile' mechanism aimed at strengthening the verification of the $ZEC supply.

This mechanism aims to strengthen control over the total supply due to concerns about a potential security vulnerability in the old Orchard pool, which could have led to the production of counterfeit $ZEC. With Ironwood, the goal is to more strictly control supply stability when transferring funds into the new pool. Previously, there was significant criticism regarding the possibility of token counterfeiting due to the inability to verify Zcash's supply volume.

Previously, the Ironwood network activation level in the testnet was set at block height 4,134,000.

*This is not investment advice.

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Related Questions

QWhich cryptocurrency project is preparing to activate the network update NU6.3 'Ironwood'?

AThe cryptocurrency project preparing to activate the network update NU6.3 'Ironwood' is Zcash, a privacy-focused project.

QWhat is the scheduled date and approximate time for the Ironwood update activation on the main network?

AThe Ironwood update is scheduled to activate on the main network on July 28, 2026, at block height 3,428,143, which is expected to be reached at approximately 16:00 Turkish time on that date.

QWhat is one of the key security features introduced by the Ironwood update to address concerns about potential token counterfeiting?

AOne of the key security features introduced by the Ironwood update is the 'turnstile' mechanism. It aims to strengthen the verification of the $ZEC supply and provide stricter control over supply stability when funds are moved to the new transaction pool.

QWhat specific vulnerability or concern was the 'turnstile' mechanism in the Ironwood update designed to mitigate?

AThe 'turnstile' mechanism was designed to mitigate concerns regarding a potential security vulnerability in the old Orchard pool that could have led to the production of counterfeit $ZEC tokens. It addresses criticism about the impossibility of verifying Zcash's supply volume.

QBesides the 'turnstile' mechanism, what is another notable feature of the Ironwood update, and what is its purpose?

AAnother notable feature of the Ironwood update is the introduction of confidential records. They are intended to provide recovery capabilities in the face of future risks associated with quantum computing advancements.

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