Zcash community proposes NU8 upgrade plan, aiming to increase block size limit to 8MB by the end of January next year.

November 10: Zcash community member ValarDragon posted on the official community forum, proposing a series of proposals planned for inclusion in the NU8 network upgrade and suggesting the upgrade target be set for late January 2027.

The main contents include launching the Tachyon shielded pool, expanding the transaction format, increasing the maximum block size from 2MB to 8MB, and adding transparent transaction opcodes that support post-quantum cryptography.

Other proposals include: adjusting the NSM reallocation date to be close to the time of Zcash's seventh halving; determining at the protocol level the date when Sapling stops accepting new deposits while continuing to support transactions and withdrawals; and eliminating the Consensus Branch ID that requires updating with every network upgrade to reduce wallet compatibility issues.

ValarDragon stated that Tachyon, combined with larger block capacity, is expected to achieve shielded transaction processing capacity of approximately 200 TPS. In addition, the post-quantum transparent transaction feature will introduce SPHINCS-based 128-bit and 192-bit security level schemes. The above content currently consists of upgrade ideas proposed by community members, and specific implementation still depends on development progress and subsequent NU8 discussion and voting.