Zcash's NU7 upgrade has been activated on the testnet, allowing developers to test and evaluate its features before its planned mainnet activation in November. The upgrade introduces 25-second blocks and other changes to the protocol. This testing period will give developers several weeks to assess the impact of the changes before the mainnet launch.
Source
"Zcash NU7 Upgrade Activated on Testnet" — Cointelegraph
This article is Bitcoincryptos' summary and analysis of reporting originally published by Cointelegraph. Read the full original report at the link above.
The NU7 upgrade is a crucial step in the development of Zcash, and its successful activation on testnet is a significant milestone. The upgrade aims to improve the scalability and security of the Zcash network.