The official website of the coin DEX official website said that UTC time was around 7:00 on June 26 (15:00 Beijing time), and the coin chain test network carried out a hard fork upgrade at block height of 24,020,000. The main network will also be in a few weeks. Upgrade. Zhao Changpeng, the founder of the currency, said that one of the key improvements in this upgrade is the performance improvement. At the peak of the transaction, if you encounter delays or other performance issues, be sure to try 2.0. Due to insufficient performance, we will soon replace the "1.0" version.