Next to already revealed an known https://community.bistudio.com/wiki/Category:Arma_3:_New_Scripting_Commands_List
There are more script commands now :)
+ fixed http://feedback.arma3.com/view.php?id=12324
+
only discussion related to new or changed Arma 3 Beta/Dev Scripting allowed
The very strangely named command https://community.bistudio.com/wiki/sunOrMoon is broken. It only reports 0 and 1 now, nothing in between anymore.