Zcash developers proposed cutting the network’s target block interval from 25 to 20 seconds in a draft for Network Upgrade 7.1. The change is still open to community discussion and governance voting; it has not been approved or activated. The draft aims to speed up confirmations without changing daily ZEC issuance or the 21 million ZEC supply cap.
The proposal would also lower certain shielded action limits from 330 to 264 per block to limit demands on wallets and nodes. Zcash’s activated NU7 upgrade cut the target interval from 75 to 25 seconds and retired the Sprout pool, permanently freezing about 12,226 ZEC. AEREDIUM’s Albert Dadon warned that another quick upgrade could pose stability risks, while reported stress tests and post-NU7 data indicate lower orphan block rates; risks under heavy mainnet traffic remain.
