Zcash community developer Dev Ojha (ValarDragon) has proposed the NU8 network upgrade, targeted for implementation in late January 2027. The proposal plans to introduce a next-generation Tachyon privacy transaction pool and increase the maximum block size from 2 MB to 8 MB, enabling privacy transaction processing of approximately 200 transactions per second. The upgrade also proposes introducing SPHINCS-based post-quantum signature opcodes, combining them with Tachyon’s ML-KEM encryption mechanism to improve post-quantum security, and setting a date for the legacy Sapling privacy pool to stop accepting new deposits, encouraging users to migrate. The proposal also covers adjustments to the allocation of future token issuance and improvements to wallet compatibility.