Zcash is set for a dramatic performance leap as the long-awaited Network Upgrade 7 (NU7) has been deployed on testnet. The upgrade, the ninth in the network’s history, promises a 300% speed boost by slashing block times from 75 seconds to just 25 seconds – while also introducing a new miner sustainability mechanism and anti-spam fee logic. The news comes just days after the U.S. Securities and Exchange Commission closed its investigation into the Zcash Foundation on May 20 with no enforcement action, removing a significant regulatory cloud.
NU7 brings three core improvements. First, the block time reduction means transactions will be confirmed three times faster. Peer synchronization has been optimized to prevent orphan blocks at higher speeds. Second, the Network Sustainability Mechanism (NSM) redirects a portion of transaction fees into a special fund to support miners, who now receive fewer coins after previous halvings – rather than burning those fees. Third, a new fee-per-logical-action model effectively stops spammers: a normal transaction remains cheap, but a spam transaction with hundreds of inputs/outputs becomes prohibitively expensive.
Beyond the immediate NU7 features, the Zcash Foundation is advancing Project Tachyon, which uses proof-carrying wallets and oblivious synchronization to scale shielded transaction throughput to thousands of TPS, eliminating runaway state growth. FROST v3 will bring threshold signatures with default cheater detection, expected to be finalized in 2026. Importantly, NU7 includes Orchard Quantum Recoverability, a pathway for recovering keys vulnerable to future quantum hardware – a feature that has drawn fresh attention as the market re-rates Zcash’s zero-knowledge technology.
One notable temporary setback: the new v6 transaction format was removed from the release due to code complexity that jeopardized stability and broke compatibility with Ledger and Keystone hardware wallets. This delays the launch of Zcash Shielded Assets (ZSAs), which would have enabled private multi-asset issuance. Despite the technical milestones, market reaction has been tepid: ZEC was trading around $633, down 4.68% on the day, although it had posted a 73% monthly rally prior to the announcement.
