Zcash [ZEC] has rallied nearly 37% since developers deployed the Ironwood [NU6.3] upgrade to testnet earlier this month, with the privacy-focused cryptocurrency outperforming many of its peers ahead of the protocol’s next major network upgrade.
As the community prepares for Ironwood’s mainnet activation, the upgrade also marks the beginning of the end for zcashd. This is the network’s long-running reference node, making this one of the most significant transitions in Zcash’s history.
Ironwood aims to strengthen confidence in Zcash’s supply
The Zcash Open Development Lab deployed the Ironwood [NU6.3] upgrade to testnet on July 2, with activation following on July 4. The milestone serves as the final testing phase before the planned mainnet rollout later this month.
Ironwood was introduced following the disclosure of an Orchard protocol vulnerability in June. While developers said there was no evidence the issue had been exploited or that user funds were at risk, the flaw highlighted a limitation in proving the integrity of Zcash’s shielded supply.
To address that, Ironwood introduces a new shielded pool alongside a “turnstile” mechanism that enables the network to verify the amount of ZEC migrating into the new pool without compromising transaction privacy.
The upgrade is designed to strengthen confidence in Zcash’s circulating supply while preserving the privacy guarantees that distinguish the network from other cryptocurrencies.
Legacy zcashd node heads for retirement
Ironwood also marks a major infrastructure shift for the ecosystem.
The long-running zcashd reference implementation will not support NU6.3. It is being phased out as the network transitions to a Rust-based architecture built around Zebra, Zaino, and Zallet.
Developers have urged node operators to migrate before Ironwood activates on mainnet, as legacy zcashd nodes are approaching their automatic end-of-life shutdown. It will no longer participate in the upgraded network.
The transition represents one of the largest architectural changes since Zcash launched. It replaces the software that has underpinned the blockchain for years.
ZEC price prediction: Bulls pause after 37% advance
At press time, ZEC traded around $546, up roughly 37.4% from its early July lows.
The rally has since slowed into a period of consolidation, with buyers attempting to establish support after reaching the recent highs.
The daily RSI stood at around 58, indicating bullish momentum remained intact without entering overbought territory. That suggests buyers still hold a modest advantage. However, the strong upside momentum seen earlier in the month has begun to moderate.
The immediate resistance lies around $560, where recent advances have repeatedly stalled.
A decisive breakout above that level could pave the way for another attempt at $600, a price zone that acted as resistance earlier this year.
On the downside, the $500 region has emerged as the first meaningful support. Holding above that level would preserve the current higher-low structure. At the same time, a break below it could trigger a deeper pullback before buyers attempt another advance.
Final Summary
- Zcash’s Ironwood upgrade has entered its final testing phase, introducing a new shielded pool while paving the way for the retirement of the legacy zcashd node.
- ZEC has gained nearly 37% since Ironwood entered testnet, with bulls now attempting to break above the $560 resistance to target $600.
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