Developers ValarDragon and Evan Forbes have introduced a draft Zcash Improvement Proposal to decrease the target block interval from 25 seconds to 20 seconds. This initiative follows the recent activation of the NU7 upgrade, which occurred on Friday and reduced the block time from 75 seconds to 25 seconds.
The proposed change aims to accelerate transaction confirmations, specifically benefiting point-of-sale payments, exchange deposits, and cross-chain swaps. The authors submitted the draft to the Zcash community forum, requesting its inclusion in the next community poll and consideration for the upcoming NU7.1 network upgrade.
According to the developers, the adjustment will not expand the network's total daily capacity for private transactions. Furthermore, the proposal ensures that the existing issuance schedule remains unchanged, despite the increased frequency of block production.
The recent NU7 upgrade also implemented a Network Sustainability Mechanism. This feature is designed to redistribute a portion of transaction fees toward future mining rewards while maintaining the fixed supply cap of 21 million ZEC.






