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Zcash Z3Zcashd End-of-Life

Zcashd End-of-Life

⚠️ zcashd has reached its End of Life

zcashd is deprecated and does not support NU6.3. If you do not need the zcashd wallet, migrate to Zebra  now. If you depend on the zcashd wallet, migrate your wallet.dat to Zallet  as soon as possible. The binary’s End-of-Support halt occurred at block height 3417100, mined on July 18th 2026 at 22:51 UTC, after which every zcashd node automatically shuts down and refuses to restart.

See Zcash’d book chapter  on Zcashd EOL.

zcashd End-of-Life timeline
  1. July 2nd, 2026Ironwood / NU6.3 testnet deploymentNU6.3-ready node releases are deployed to testnet.
  2. July 4th, 2026Ironwood / NU6.3 testnet activationNU6.3 activates on testnet at block 4,134,000.
  3. July 9th, 2026Ironwood / NU6.3 mainnet deploymentNU6.3-ready node releases are published for mainnet.
  4. July 18th, 2026zcashd End-of-Support haltAt mainnet block 3,417,100 (mined 22:51 UTC) every remaining zcashd binary shut down and refused to restart.
  5. ~July 28th, 2026 · estimatedIronwood / NU6.3 mainnet activationNU6.3 activates on mainnet. zcashd does not support NU6.3 — the network is Zebra-only from here on.
Source: zcashd End-of-Life documentation. Block-height milestones are estimates and may shift by a few days.
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