ZcashFoundation/zebra v2.5.0

Zebra 2.5.0

on GitHub

Zebra 2.5.0 - 2025-08-07

This release includes the implementation of Zcash Network Upgrade 6.1 (NU6.1) on Testnet and sets its activation height on the public Testnet at block 3,536,500. Please update your Testnet nodes as soon as possible to ensure compatibility.

Breaking Changes

• Value pool "deferred" changes its identifier to "lockbox". getblock and getblockchaininfo RPC methods will now return lockbox as the FS_DEFERRED value pool to match zcashd. (#9684)

Added

• Implement one-time lockbox disbursement mechanism for NU6.1 (#9603, #9757, #9747, #9754)
• NU6.1 Testnet implementation and deployment (#9762, #9759)

Fixed

• validateaddress RPC bug (#9734)
• Count sigops using generics (#9670)

Contributors

Thank you to everyone who contributed to this release, we couldn't make Zebra without you:
@Galoretka, @arya2, @conradoplg, @dorianvp, @gustavovalverde, @oxarbitrage, @pacu and @upbqdn