What is Bitcoin Cash?

Bitcoin Cash is a hard fork of Bitcoin. It includes a protocol upgrade intended to address on-chain capacity while avoiding Segregated Witness (SegWit). The project aims to keep the original economic rules of Bitcoin unchanged, with upgrades primarily implemented through hard forks.

Bitcoin Cash was released on 1 August 2017 as an upgraded version of Bitcoin Core software. Its main change increases the block size limit from 1MB to 8MB. The description characterizes this as enabling substantially higher transaction throughput compared with Bitcoin. The text also notes that a hash war in November 2018 led to a split between Bitcoin SV and Bitcoin ABC.