History of Bitcoin Cash
Since its launch, Bitcoin users have maintained a common set of rules for cryptocurrency. On 21 July 2017, bitcoin miners installed a software upgrade called Bitcoin Improvement Proposal (BIP) 91, which enabled the Segregated Witness to upgrade at block 477,120. In a controversial move, Segwit would enable second-layer solutions for bitcoin such as the Lightning Network. A key difference of opinion between Bitcoin users was regarding nodes. It is useful to keep Bitcoin blocks small so that nodes can be operated with fewer resources, while some large block supporters find it acceptable that (due to large block sizes), nodes may only be run by universities, private companies, and nonprofits.
As a result of dissatisfaction with Bitcoin’s proposed SegWit improvement plans, a group of bitcoin activists, developers, and Chinese miners proposed raising the block size limit to eight megabytes through a hard fork. An on-chain exchange function is more popular among those who support a block size increase.