We have upgraded our Zebra nodes to version 4.3.1 to address security vulnerabilities.
We have also upgraded the Zebra Nix Flake to version 4.3.1.

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 Vulnerability A logic error in Zebra’s transaction verification cache could have allowed a ma...



