Zcash Activates Ironwood Tomorrow: Key Changes Every ZEC Holder Should Watch
TL;DR:
- The Zcash network upgrade will execute upon reaching block height 3,428,143.
- The Orchard private pool will lock 3.76 million ZEC, representing 22% of the circulating supply.
- Node operators must install Zebra 6.0.0 to maintain compatibility with the system.
Next Tuesday, July 28, the Zcash Ironwood network will activate its infrastructure upgrade upon reaching block 3,428,143 to restructure its largest private pool of funds. The enhancement will seal the Orchard pool to prevent internal transfers without affecting the security of user balances.
ZCASH IRONWOOD IS ALMOST HERE
On 28 July, migrating your shielded ZEC can link your IP address to your balance.
Strong on-chain privacy. Undone at the network layer. The Nym fix is here. $ZEC #Zcash pic.twitter.com/I57kFjuDTY
- Nym (@nym) July 27, 2026
According to official data from the Zcash Foundation, the affected pool holds a total of 3.76 million ZEC, valued at approximately $1.89 billion. Data from the Zcash Open Development Lab (ZODL) suggests this amount represents nearly 22% of the total circulating supply at the end of July 2026.
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