Zcash Developers Propose 20-Second Blocks for Faster Confirmations

TL;DR Zcash developers proposed cutting target block spacing from 25 seconds to 20 seconds, seeking faster first confirmations and inclusion in the NU7.1 upgrade. Stress tests showed orphan rates of 1.9% on Zakura-only networks and 3.3% on mixed Zakura/Zebra-Andele setups, below earlier readiness thresholds used for 25-second blocks. The proposal keeps daily issuance and shielded throughput unchanged by proportionally scaling block rewards, action limits and time-based parameters. Zcash developers have proposed lowering target block spacing from 25 seconds to 20 seconds, extending the latency reductions introduced with NU7. In a community forum proposal , developers ValarDragon and Evan Forbes said they want the change included in the next poll and slated for NU7.1. The proposal targets faster confirmations without increasing Zcash’s shielded transaction capacity.

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