Zcash activates NU7 on testnet ahead of November mainnet target

Key Summary

Zcash has activated its NU7 network upgrade on testnet, approximately a month ahead of its planned November mainnet target. The upgrade reduces the network's target block spacing from 75 seconds to 25 seconds and disables version 4 transactions, redirecting part of transaction fees into future block rewards. The testnet phase, which began with block 4,465,026 on October 4, allows developers to assess the upgrade under real conditions before a final decision on mainnet activation is made on October 20. Mainnet activation is targeted for November 5, giving developers several weeks to test the upgrade before deployment.