After the release of new versions for iOS, tvOS and watchOS we find that Apple has released the new beta for macOS Catalina 10.15.2; We find the fourth version of this beta available only for developers. So the only way to download this new test version is if you are signed up for the developer program that Apple makes available to them.
This new beta brings us even closer to the version of macOS available to the general public. Although We still have to wait a few more weeks. Apple released macOS Catalina 10.15.2 beta 3 to developers on November 20. The second beta came on November 13, while the first beta arrived on November 7.
Beta 4 for macOS Catalina 10.15.2 but only available for developers
A month after releasing macOS Catalina 10.15.1 to the general public, Apple has released beta 4. This path will end in what will become the second major update to the macOS Catalina desktop operating system.
The beta software has a build number "19C56a". However, It is available only to members of the Apple Developer program. You already know that in order to install this new version, it can only be done through the software update mechanism for Mac computers with a suitable configuration profile installed. Although you can always join the program through from the Apple Developer Portal.
Apple has not highlighted any important areas of interest to testers for this beta 4. In fact, the record of official changes just mention a new feature: adding certain top-level domains such as .dev and .app to the Foundation URLSession and NSURLConnection HTTP Strict Transport Security (HSTS) preload list.
As we always say, be careful with the installation of these beta versions, They can be riddled with bugs and are advised to be installed on secondary computers whenever possible.