Making Zebra More Accessible: Major CI/CD Improvements for Contributors
Over the past several months, we’ve made significant changes to Zebra’s continuous integration and testing infrastructure. For those new to the project, Zebra is the Zcash Foundation’s full-node implementation written in Rust, providing an independent, memory-safe, and consensus-compatible alternative to zcashd. These improvements make it easier for anyone to fork the repository, test their changes, […]
Zebra 2.5.0 Release
We’re excited to announce that Zebra 2.5.0 was released on 08-07-2025, with the most notable update being the implementation and deployment of NU6.1 in the Zcash public Testnet. The network upgrade was successfully activated on 08-11-2025. For full details, see the 2.5.0 release notes. NU6.1 was scheduled to activate at Testnet block height 3,536,500, following […]
Zebra 2.4.2 Release
We have released Zebra v2.4.2. Included are security fixes, bug fixes, and new features. If you are currently using Zebra, please take note of any breaking changes. For full details, please refer to the release notes. We had to pull an earlier release due to a database upgrade bug that was introduced in v2.4.0. If […]
Zebra 2.3.0 Release
The Zcash Foundation is pleased to announce the release of Zebra 2.3.0. This release includes a number of improvements to regtest mode, by adding methods to reconsider and invalidate blocks, as well as fixing a bug that was preventing some transparent transactions from being served by Zebra in regtest mode. Additionally, this release restores Zebra’s […]
Zebra 2.2.0 Release
The Zcash Foundation is pleased to announce the release of Zebra 2.2.0. In this release, we introduced an additional consensus check on the branch ID of NU6 transactions, along with some important refactors and other improvements. In order to support the new node and wallet stack that will enable us to deprecate zcashd, this release […]
Zebra 2.1.0 Release
The Zcash Foundation is pleased to announce the release of Zebra 2.1.0. This release includes some necessary updates post-NU6 activation. We are now verifying that V5 transactions in the mempool have the correct consensus branch ID before returning a transaction ID, which would indicate a successful insertion in the mempool, even though they would be […]
Zebra NU6 Audit
During Q3 2024, Least Authority (in their role as the Zcash Ecosystem Security Lead) undertook an audit of the changes implemented in Zebra in order to support the NU6 Zcash network upgrade. We are pleased to announce that the audit was favorable, and that we have addressed and mitigated the audit findings in our 2.0.1 […]
Zebra 2.0.1 Release
The Zcash Foundation is pleased to announce the release of Zebra 2.0.1 with full support for NU6 on Mainnet. Zebra 2.0.0 introduced support for NU6 but did not contain the right dependencies, so we’re also releasing 2.0.1. If you have downloaded and are running Zebra 2.0.0, please update to version 2.0.1. Related to NU6 support, […]
Zebra NU6 Release Candidate
The Zcash Foundation has recently released Zebra 2.0.0-rc.0, the first release candidate for NU6. This release includes all of the required consensus rules, functionality and tests for Network Upgrade 6. However, it does NOT yet include the NU6 activation height or current protocol version, both of which will be required in order for Zebra to […]
Zebra 1.9.0 Release
The Zcash Foundation is pleased to announce the release of Zebra 1.9.0. This release includes the necessary changes to activate NU6 on Testnet as well as a number of additional NU6 updates and other improvements. To support NU6 activation on Testnet, this release of Zebra adds the NU6 network upgrade variant, minimum protocol versions for […]