You miss the point.
Actual Versions have newer Database as Test releases.
So the most actual Database is 2.3.51.
There you can test if it recognizes the 23 Explorer.
The following Testrelease will contain this Database and will see it too if it wortks with 3.51
So it's for checking purposes only.
Also if you don't plan to write module software the 2.3.51 is the best option
So 2.3.51 may run better as any test release you have.