Zcash Foundation released Zebra 4.5.3 and Zebra 5.0.0 to fix a critical soundness bug in the Orchard Action circuit before exploitation. Zebra 4.5.3 disabled Orchard actions, while 5.0.0 re-enabled them through NU6.2. No unauthorized value appeared, and shielded transactions were restored with the upgrade. Node operators are urged to upgrade to Zebra 5.0.0.

Leave a Reply