The Zcash Foundation announced that its Zebra node software released four updates between September 21 and October 5, including versions 6.4.x and 7.0.0-rc.0. Zebra 6.4.2 fixed a remotely triggerable crash vulnerability, while 7.0.0-rc.0 is the first release candidate for the NU7 upgrade, which was activated on the testnet on October 4. The NU7 mainnet activation is tentatively scheduled for November 5, 2026.