Although the exact date has not yet been established, August 4 may be the day the appearance of a new type of bitcoin - ABC.
Bitmain, one of the major manufacturers of devices for mining, recently announced that in case BIP91 is not activated before August 1, and BIP148 shows signs of life after this time, the company will launch a "contingency plan".
The implementation of this action plan, called Bitcoin ABC, was announced at the Future of Bitcoin conference.
Prior to August 1, Bitcoin ABC will share the common history with bitcoin, but after the first few days, Bitmain is likely to be privatized. It will also include several protocol changes, including those incompatible with the old one. One of the most important changes is an increase in the block size limit.
If at the time of the split - 03:00 GMT on August 1 - you already had bitcoins, then you will automatically get Bitcoin ABC. In this case, you may need additional software to send (and receive) currency.
Miners will be able to start Bitcoin ABC mining from August 4, if not earlier.