Zcash developers have proposed, in a draft of Network Upgrade 7.1, shortening the target block interval from 25 seconds to 20 seconds in order to reduce transaction confirmation delay. A newsflash published by Odaily on 10 November 2026 at 21:44 (UTC+8), citing Bitcoin.com News, states that this adjustment would not change the daily issuance schedule or the supply cap of 21 million ZEC.
The draft also proposes cutting the limit on certain shielded transaction actions from 330 per block to 264. The maximum block size would remain 2 MB. The proposal is open for community discussion, and implementation still depends on community deliberation and a governance vote.
On the terms reported, a faster block interval is not paired with any increase in daily ZEC issuance or in the 21 million maximum supply. The source does not describe the exact parameter changes that would keep daily issuance unchanged, so any implied change in ZEC released per block is not specified.
