Wu Blockchain (@WuBlockchain): UPDATE: Zcash Foundation releases Zebra emergency upgrade to fix critical Orchard bug

UPDATE: Zcash Foundation releases Zebra emergency upgrade to fix critical Orchard bug Zcash Foundation released Zebra 4.5.3 and 5.0.0 to fix a critical soundness bug in the Orchard Action circuit. Zebra 4.5.3 temporarily disabled Orchard actions via an emergency soft fork at mainnet block height 3,363,426, while Zebra 5.0.0 activated the NU6.2 hard fork at block height 3,364,600 and re-enabled Orchard with the corrected circuit. Zcash Foundation said the vulnerability was caught before any known exploitation, with no evidence of unauthorized value creation. User privacy was not affected, and Sapling and transparent transactions continued to operate normally. Zebra node operators are strongly urged to upgrade to 5.0.0. https://x.com/ZcashFoundation/status/2062127221418991847