MacBook Pro (13-inch, 2018) upgraded to macOS 10.15 Catalina (19A602)

MacBook Pro (13-inch, 2018) is retired from Developer Beta track and upgraded to macOS 10.15 Catalina (19A602) by clicking the "GET" button manually at the App Store. Although this is the official release of the latest system, there are some issues to be solved:

• Xcode 11.1 cannot be installed successfully in App Store with repeating re-installing and failed attempts; 
• CPU thermal thrust is back with abnormal voltage and clock frequency, which leads to system freezing sometimes; 
• Legacy 32-bit applications are not running on this platform anymore, e.g. Google Picasa 3.9 to which no desirable alternative is found; 
• V2rayU 1.4.1 is not working on the new platform for unknown reasons. Outbound traffic is fine but no inbound traffic can be received. 

In general, this is not a satisfactory version and noticeable bugs are waiting to be fixed.