Hello,
For my part I think it should take a long time to update and do all the checks of the proper functioning of the program, more Microsoft is in the process of modifying a lot of thing and parameters in Windows 10 and this for their new mount Windows in the future. And that full of parameters we are gone or we change location so not easy in this condition to update a program, especially since I think it does this after its main activity. I prefer that it take time and have a program that works well without problems than having something that works with lots of bugs.
For donations he could very well have done like many others do a 30-day trial period and then the program stops and obliges to pay to have it, but he preferred to put it for free with a filagram and to unlock here we donate a donation like this everyone can have it and enjoy it (thanks BigMuscle for that).
Cordially coyotee