Zcash News: NU7 Activates Early on Testnet, Block Time Falls to 25s!

Zcash News has a new technical milestone. The NU7 upgrade has gone live on the public testnet, cutting the target block time from 75 seconds to 25 seconds.

The Zcash account says NU7 is set for November 5 and will also disable Sprout transactions.

This crypto news today report covers what the two posts say and what they leave out.

Key Takeaways

• NU7 activated on the public testnet at block 4,465,026, earlier than expected, cutting the target block time from 75 seconds to 25 seconds, per The Block.

• The Zcash account says NU7 is set for November 5, disables Sprout transactions, and tells Sprout ZEC holders to migrate to Sapling before activation.

• The posts confirm a testnet milestone only, with no mainnet activation, and they do not explain effects on fees or confirmations.

What Did the Block Report About NU7 on Testnet?

The Block reports that Zcash's NU7 upgrade activated on the public testnet earlier than expected.

Source: The Block (@TheBlockCo) on X, captured October 26, 2026

The update says NU7 went live at block 4,465,026 and had previously been expected around October 6.

A code snippet in the post labels NU7 with that activation height and an active status.

The update names no cause for the timing. It also lists ZEC at $1,198.67, down 1.53%, as a market data point.

What Does the 25-Second Block Time Change?

Block time is the target gap between new blocks. NU7 cuts that target from 75 seconds to 25 seconds, a drop of 66.7% (derived). At 75 seconds, a day holds about 1,152 blocks.

At 25 seconds, it holds about 3,456, three times as many (derived). Crypto news summaries may stress speed, yet the posts do not say how confirmations, fees, or node requirements change.

Why Does Zcash Tie Block Time to Sprout Migration?

The Zcash news recalls the Blossom upgrade of 2019, which halved block time from 150 to 75 seconds.

That cut the 500-block Sprout-to-Sapling pool migration interval from 20.8 hours to 10.4 hours.

The latest update puts the new figure at about 10.42 hours. 500 blocks at 75 seconds is 37,500 seconds.

At 25 seconds, the same 500 blocks span 12,500 seconds, or about 3.5 hours (derived). The post does not state that figure.

What Does NU7 Mean for Sprout ZEC Holders?

Zcash says NU7 disables Sprout transactions. It adds that Sprout ZEC should migrate to Sapling before activation.

Source: Zcash (@Zcash) on X, captured October 26, 2026

That is the project's own instruction. Holders of Sprout ZEC would need to check Zcash's official guidance for the steps.

The update names November 5 as the date for Network Upgrade 7, about 11 days after October 25 (derived).

Is NU7 Live on Mainnet?

Not according to the updates. The Block describes a public testnet activation, and the Zcash post gives November 5 for NU7 without confirming a mainnet activation.

Neither post shows its own date, so the testnet timing is read from the note that NU7 had been expected around October 6.

The early testnet result is a development step. Readers following the latest crypto news on Zcash should wait for an official mainnet activation notice.

Conclusion

Zcash News on NU7 is a testnet milestone with a November 5 date attached. The upgrade cuts target block time to 25 seconds and disables Sprout transactions. Whether the plan holds depends on official updates that the two posts do not contain.

YMYL Disclaimer

This article is for informational purposes only and is not financial or investment advice. Cryptocurrency and network upgrades carry a significant risk of loss. Readers should verify details with official sources and consult a qualified professional before making financial decisions.