Dubbed Bitcoin SV — a not-so-subtle acronym for “Satoshi Vision” — the software, in nChain’s words, is designed “to provide a clear BCH implementation choice for miners who support Bitcoin’s original vision, over implementations that seek to make unnecessary changes to the original Bitcoin protocol.”
The company says that Bitcoin SV will double down even further on Bitcoin Cash’s commitment to on-chain scaling (as opposed to second-layer scaling through technologies such as Plasma and the Lightning Network) by raising the block size limit to 128MB from the current 32MB limit. For reference, the vast majority of recent BCH blocks mined over the past several days have been smaller than 100KB, or less than one-third-of-one percent of the current limit.