Zcash Begins NU7 Testnet Ahead of November Mainnet Upgrade

Zcash has moved its new big upgrade, NU7, into public testing as developers get prepared for a possible mainnet launch in November. Right now, they are running this upgrade on the testnet to see how it holds up before deciding whether to activate it on Zcash’s main network. By launching the public testnet, developers, infrastructure operators, and others can check out how the changes work before they actually touch real $ZEC transactions. The mainnet rollout is set for November 5, but it depends on what they find during testing and a final call scheduled for October 20.

Faster Blocks are at the Centre of NU7

The biggest change in NU7 is the plan to cut Zcash’s block interval from 75 seconds to 25 seconds. Since blocks contain groups of transactions, making them more often should cut down the time people wait for their transactions to go through. This faster timing helps exchanges, wallets, and merchants. Basically, payments or deposits show up sooner, so users and businesses can process transactions more easily.

They are not just rolling this out live, they are testing it on the public testnet first. This gives developers a chance to spot problems and see how everything works in real world conditions before heading to the mainnet. So the testnet phase is pretty important for NU7. Developers will use the results to decide if the changes are ready for Zcash’s main network.

Fee Changes and the End of the Older Sprout System

NU7 also changes how transaction fees get distributed. After the upgrade, 60% of fees will go to a reserve for future mining rewards. The rest still goes to miners. Plus, they are lowering the block reward. This keeps $ZEC’s coin release schedule intact, even though blocks are coming more often. So, quicker blocks would not mean more new $ZEC getting created.

Another big part of NU7 is shutting down the old Sprout privacy system and Version 4 transactions. Sprout is Zcash’s original privacy technology, and once NU7 is activated, coins held in Sprout would not work through that system anymore. Anyone affected needs to move their funds to a different address before the upgrade. That means the change matters not just for developers and operators, but also for anyone holding coins in the old Sprout system.

October 20 Decision will Shape the Mainnet Rollout

Right now, the public testnet is what developers are focusing on. The Zcash team plans to check the results and make the final decision on October 20. That is when they will decide if NU7 heads to mainnet, and if yes, which block height to use for the activation. The target launch date for mainnet is November 5.

So, at this point, the upgrade is being tested and reviewed, it is not official yet. Developers have a few weeks to see how the new rules perform and make sure the network is ready. For Zcash, the testnet phase is a checkpoint. It is where they try out the 25 second block time, the new fee system, and the end of Sprout transactions in real conditions. Nothing moves to the mainnet until they are sure everything works.