Zcash developer proposes quadrupling max block size in NU8 upgrade

Zcash developer Dev Ojha proposed on the Zcash forum that the NU8 upgrade, scheduled for late January next year, include a roughly fourfold increase in the network’s maximum block size to 8 MB from 2 MB. Ojha also proposed including seven improvements in the upgrade: the launch of the Tachyon shielded pool, the introduction of a scalable transaction format, an increase in the maximum block size from 2 MB to 8 MB, the addition of SPHINCS-based quantum-resistant transparent transaction opcodes, an adjustment to the timing of NSM redistribution, a confirmed end date for Sapling deposits, and the removal of Consensus Branch ID updates. Ojha emphasized that combining Tachyon with the block size increase could lift shielded transaction throughput to as much as 200 transactions per second, or 200 TPS, while also strengthening quantum-resistant security and improving wallet compatibility.