Zcash activated its NU7 upgrade on testnet, enabling developers to evaluate protocol modifications ahead of a scheduled November mainnet launch. The upgrade introduces 25-second blocks alongside other protocol changes. Testnet activation provides a testing window of several weeks before the mainnet deployment target.
NU7 represents a network upgrade for the privacy-focused blockchain. The shorter block time of 25 seconds represents a key technical change being evaluated during the testnet phase. Developers can assess how the new parameters perform in a live environment before rolling out to the main network.
The November mainnet target gives the Zcash development community time to gather feedback, identify potential issues, and make adjustments based on testnet results. This staged rollout approach allows for validation of the upgrade's stability and performance metrics before affecting the main blockchain and its users.
The testnet phase duration of several weeks aligns with standard blockchain upgrade practices, allowing sufficient time for comprehensive testing of the 25-second block implementation and related protocol changes.