Zebra 4.4.1: Critical Security Fix
We are releasing Zebra 4.4.1 today. This release contains a fix for a consensus-critical security vulnerability, and we strongly encourage all node operators to upgrade immediately. You can update directly to it if you have not updated for the last couple of releases. Note that the 4.4.0 release was just three days ago. If you […]
Zebra 4.4.0: Critical Security Fixes
We are releasing Zebra 4.4.0 today. This release contains fixes for multiple security vulnerabilities, including several consensus-critical issues, and we strongly encourage all node operators to upgrade immediately. Security Advisories GHSA-28xj-328h-72vm: Permanent Block Discovery Halt via Gossip Queue Saturation + Syncer Poisoning Zebra’s block discovery pipeline contained a composite denial-of-service vulnerability that allowed a remote […]
Zebra 4.3.1: Critical Security Fixes, Dockerized Mining and CI Hardening
We are releasing Zebra 4.3.1 today. This release contains fixes for a number of vulnerabilities, and all node operators are strongly encouraged to upgrade immediately. In addition to the security fix, this release introduces a Dockerized mining setup, automated checkpoint management, and a number of CI hardening improvements. Security Advisories CVE-2026-40880: Transaction Verification Cache Consensus […]
Zebra 4.3.0: Critical Security Fixes, ZIP-235 Support, and Performance Improvements
We are releasing Zebra 4.3.0 today. This release contains critical security fixes and all node operators are strongly encouraged to upgrade immediately. In addition to the security patches, this release introduces support for the Network Sustainability Mechanism (ZIP-235), improves developer tooling for performance profiling, and resolves several other bugs. Security Advisories CVE-2026-34202: Remote Denial of […]
Zebra 4.2.0 Release
Zcash Foundation is pleased to announce Zebra 4.2.0. This release expands RPC functionality, strengthens mempool policy compliance, and adds deeper state querying capabilities. This release also completes the migration to OpenRPC for API documentation and moves the Python QA test framework to the standalone integration-tests repository. What’s New in 4.2.0 RPC: A More Complete Interface […]
Zcash Foundation Q4 2025 Report
The Zcash Foundation is committed to transparency and openness with the Zcash community and our other stakeholders. Today, we are releasing our Q4 2025 report, which provides an overview of the work undertaken by our engineering team, as well as an overview of other activities during this period. As with our previous quarterly reports, this […]
Embracing AI, Protecting Privacy: How Zebra Approaches AI-Assisted Contributions
AI coding tools are changing how open source software gets built. At Zcash Foundation, we’ve seen this firsthand: AI-assisted contributions have helped us ship features faster, enabled contributors who are new to Rust or to the Zcash protocol to make meaningful contributions, and accelerated our development velocity across four major releases—in the last three months […]
Zebra 4.1.0 Release
The Zcash Foundation is pleased to announce Zebra 4.1.0, a release focused on expanding observability with comprehensive Prometheus metrics and Grafana dashboards, while strengthening mempool compliance with zcashd. This release contains no breaking changes for node operators. What’s New in 4.1.0 Observability: See Inside Your Node Zebra 4.1.0 significantly expands monitoring capabilities to give operators […]
Zcash Foundation 2026: Stewardship and Innovation
As we begin 2026, the Zcash Foundation (ZF) stands at a pivotal moment in its mission to steward privacy-preserving financial infrastructure for the public good. This year our priorities reflect both maturity and ambition. Across engineering, community engagement, and humanitarian initiatives, we are strengthening the tools that make privacy possible, deepening our collaborative partnerships, and […]
Zebra 4.0.0 Release: Enhanced Observability and Developer Experience
The Zcash Foundation is pleased to announce the release of Zebra 4.0.0. This release focuses on improving observability, streamlining operations, and enhancing developer experience. What’s New in Zebra 4.0.0 ⤷ Better Observability and Tracing We’ve significantly improved the local development experience with new observability infrastructure: Additionally, Zebra now includes comprehensive distributed tracing support through OpenTelemetry […]