Zcash targets November upgrade to cut block times to 25 seconds
The planned NU7 upgrade would make confirmations faster and add a long-term fee allocation, but the schedule still depends on testnet readiness and final implementation.
Zcash developers are targeting Nov. 5, 2026, for the network’s NU7 mainnet upgrade, according to CoinDesk and a Zcash community timeline. The plan would reduce the target block interval from 75 seconds to 25 seconds, allowing exchanges and bridges that wait for a fixed number of confirmations to release ZEC in roughly one-third the time.CoinDesk report
Cointelegraph independently described the same target and the proposed 25-second blocks. The community timeline lists code completion by Sept. 30 and a testnet activation on Oct. 6, leaving a short window for testing before the planned mainnet date.Zcash community timeline
The immediate change is technical rather than monetary. Faster blocks do not guarantee faster finality. Wallets, exchanges and bridges still choose confirmation policies and may wait longer when they assess reorganization or liquidity risk.
A fee decision is part of the upgrade
NU7 also includes the Network Sustainability Mechanism, which would reserve at least 60% of transaction fees for mining rewards beginning in 2031, according to CoinDesk’s report. That is a future economic parameter, not an immediate change to today’s block reward or a guarantee about miner revenue.
Zcash’s community vote showed strong support for keeping bitcoin-style halvings and for the timing of the fee allocation. CoinDesk reported that roughly 98.9% of participating ZEC supported maintaining the existing halving schedule, while 96.6% backed a February 2031 start for returning fees to miners. Voting weight and eligibility mean those percentages should not be read as a poll of every Zcash holder.
The design trade-off is familiar to proof-of-work networks: faster blocks can improve responsiveness, while a long-term fee mechanism aims to support security as issuance declines. Both choices depend on actual usage, fee demand and the behavior of miners and users after activation.
The testnet is the real deadline
The planned date is not final until the implementation clears testnet testing and the participating teams agree that exchanges, wallets, miners and infrastructure providers are ready. A delay would not be unusual for a consensus upgrade, and the current timeline is a target rather than a binding promise.
The practical metrics will be block propagation, orphan rates, node upgrade coverage, shielded-transaction performance and exchange confirmation policies. A shorter interval can increase coordination demands for validators and service providers, especially when network conditions are busy.
NU7 is therefore a measurable engineering milestone, not a price signal. Protocol speed matters only when networks stay reliable. This article is technology reporting, not personalized financial advice.
