May I suggest about Manager version code? Like other programmers use version code, they create the code with the unique number to represent their software.
Like Windows, Android and many software if they change many things and make the software so different like before the first number changed like Windows 7 and Windows 8, or Android Honeycomb and Ice Cream Sandwich.
Because when I download the new version, I almost don’t know what the difference before and after I upgrade.
This is just a suggestion.