The Zcash community has proposed reducing the block time from 25 seconds to 20 seconds, with plans to incorporate it into the NU7.1 upgrade.

TechFlow reported that on November 9, according to the Zcash governance forum, developer ValarDragon submitted a new proposal to optimize block intervals. The proposal suggests reducing the target block spacing from 25 seconds to 20 seconds based on ZIP 218, and aims to incorporate it into the NU7.1 network upgrade to reduce waiting times for initial transaction confirmations, payments, and cross-chain swaps.

The proposal plans to maintain the 2 MB block size cap and proportionally adjust parameters such as the number of privacy transaction operations and block rewards, keeping the daily issuance and privacy transaction processing load essentially unchanged. Stress tests show that in a simulated network with 80 miners across 12 regions, the orphan block rate for 20-second blocks ranges from approximately 1.9% to 3.3%.