The Zcash community proposed the NU8 upgrade plan: it plans to introduce the Tachyon privacy pool by the end of January next year and increase the block size limit to 8MB
Zcash community member ValarDragon posted on the official community forum, proposing a series of plans to be included in the NU8 network upgrade, and suggested setting the upgrade target for the end of January 2027. The main content includes the launch of the Tachyon shielded pool, expanding transaction formats, increasing the maximum block size from 2MB to 8MB, and adding support for post-quantum cryptography transparent transaction opcodes.Other proposals also include: adjusting the NSM redistribution date to be closer to the time of Zcash's seventh halving; determining a date at the protocol level for Sapling to stop accepting new deposits while continuing to support transactions and withdrawals; and eliminating the need to update the Consensus Branch ID with each network upgrade to reduce wallet compatibility issues. ValarDragon stated that with the combination of Tachyon and larger block capacity, a shielded transaction processing capability of approximately 200 TPS is expected. In addition, the post-quantum transparent transaction feature will introduce schemes based on SPHINCS with 128-bit and 192-bit security levels. The above content currently belongs to the upgrade ideas proposed by community members, and specific implementation still depends on development progress and subsequent NU8 discussions and voting.
