Zcash NU7 upgrade proposal would disable the legacy Sprout privacy pool and invalidate v4 transactions to reduce attack surface.

Regulation & Gov · 2026-10-19

Zcash's proposed NU7 network upgrade includes plans to disallow version 4 transactions and remove the legacy Sprout privacy pool, according to specifications outlined in the upgrade documentation. The proposal aims to reduce attack surface by invalidating these older protocol elements, though it would require coordinated upgrades across nodes and wallets in the ecosystem. NU7 also encompasses changes to block target spacing, transaction fee mechanisms, and issuance parameters.

Previously on Telem

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