In less than a week on May 15, the Bitcoin Cash (BCH) network will be upgrading the base block size from 8MB to 32MB, as well as re-enabling and adding some OP_Codes to the codebase. With just days left there are a few things BCH holders and full node operators should know before the upgrade takes place this coming Tuesday.
Just a Few Days Left Until the May 15th Bitcoin Cash UpgradeThe Bitcoin Cash network is about to perform the largest block size increase ever as the upgrade will expand the block size by 4X on May 15, 2018. The #DevelopmentTeam has also added ‘Satoshi OP_Codes,’ and the fork will also increase the protocol’s default data-carrier-size to 220 bytes. Unless you run a BCH full node implementation there is not much a common user needs to do.
SOURCE:
https://news.bitcoin.com/upgrade-time-bitcoin-cash-32mb-fork-activates-tuesday/