#zcash
⚡ Zcash ($ZEC ) has launched the NU7 upgrade on the testnet: 25-second blocks and a new economic model!
Zcash has activated the major NU7 (Network Upgrade 7) on the public testnet (at block height 4,465,026). The primary goal is to prepare for the full Mainnet launch scheduled for November 5, 2026.
🔑 Key NU7 changes:
➡️ 3x faster block times (ZIP 218): Block generation time has been reduced from 75 to 25 seconds. This will significantly speed up initial transaction confirmations—critical for POS terminals, exchanges, and cross-chain bridges.
Note: Total ZEC supply, the 21-million-coin cap, and the 4-year halving schedule remain unchanged.
➡️ Network resilience mechanism (ZIP 235 & 237): A special reserve is being introduced to ensure long-term network security.
60% of fees from each block are removed from circulation and placed into the reserve, while 40% go to miners.
The reserve periodically redistributes small portions of accumulated funds as an additional block reward. This ensures continued funding for miners even after traditional rewards are significantly reduced by halvings.
➡️ Optimization and spam protection: New limits have been established for private (shielded) transactions. The throughput of the Orchard protocol will more than double, and the potential load from spam attacks on light wallets will decrease by approximately 37%.
🗓 What’s next?
All node operators are urged to update their software and test NU7 on the testnet. A final decision regarding the Mainnet launch date will be made on October 20. If testing is successful, the update will be activated on the main network on November 5.
⚡ Zcash ($ZEC ) has launched the NU7 upgrade on the testnet: 25-second blocks and a new economic model!
Zcash has activated the major NU7 (Network Upgrade 7) on the public testnet (at block height 4,465,026). The primary goal is to prepare for the full Mainnet launch scheduled for November 5, 2026.
🔑 Key NU7 changes:
➡️ 3x faster block times (ZIP 218): Block generation time has been reduced from 75 to 25 seconds. This will significantly speed up initial transaction confirmations—critical for POS terminals, exchanges, and cross-chain bridges.
Note: Total ZEC supply, the 21-million-coin cap, and the 4-year halving schedule remain unchanged.
➡️ Network resilience mechanism (ZIP 235 & 237): A special reserve is being introduced to ensure long-term network security.
60% of fees from each block are removed from circulation and placed into the reserve, while 40% go to miners.
The reserve periodically redistributes small portions of accumulated funds as an additional block reward. This ensures continued funding for miners even after traditional rewards are significantly reduced by halvings.
➡️ Optimization and spam protection: New limits have been established for private (shielded) transactions. The throughput of the Orchard protocol will more than double, and the potential load from spam attacks on light wallets will decrease by approximately 37%.
🗓 What’s next?
All node operators are urged to update their software and test NU7 on the testnet. A final decision regarding the Mainnet launch date will be made on October 20. If testing is successful, the update will be activated on the main network on November 5.
