CHECKING NINJA VERSION
To access the version number of your local ninja project, go to the top menu bar in the editor and look up these options:
Edit /Project Settings /Project /Description /About /Project Version
Ninja version number is constructed from four digits, separated by dots. For example: 2.0.1.56
The 1st digit is the “major version number”, the 2nd and 3rd digits are “sub-versions” and the 4th digit is a reference to the lowest supported Unreal Engine version.
Learn more about the (LIVE-1 to LIVE-2) transition and how to access various ninja versions on FAB, by reading Manual Chapter 15
See this screenshot, showing how ninja version could be accessed in Unreal Editor.