๐Ÿšจ Zcashโ€™s NU7 Is on Testnetโ€”but Mainnet Still Isnโ€™t Live

Zcashโ€™s NU7 upgrade activated on public testnet on October 4, putting 25-second blocks through real-world testing ahead of a planned mainnet rollout.

LIVE / CONFIRMED: NU7 cuts the target block time from 75 seconds to 25 seconds and introduces a Network Sustainability Mechanism that recycles part of transaction fees into future block rewards.

But hereโ€™s the catch: this is testnet, not mainnet. Developers plan to set the mainnet activation height on October 20 based on testnet results; November 5 remains a target, not a confirmed activation.

Thereโ€™s one detail worth watching: the quantum-security plan. Developers have set January 2027 as a development target for hash-based signature support, but no network-activation date has been confirmed.

The takeaway: Zcash is shipping a concrete speed upgrade, while its quantum-security work remains an important but unconfirmed roadmap item.

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Not financial advice. DYOR.