[Zcash Zebra Node Client 4.3.1 Released with Multiple Critical Security Fixes] BlockBeats News, April 18, the Zcash Foundation announced via Twitter that it has released version 4.3.1 of Zebra. This version includes multiple critical security fixes, and all node operators are advised to upgrade immediately. In addition, this version introduces a Dockerized mining environment, automated checkpoint management, and several CI enhancement improvements.