When I update my app(with bug fixes, new features, removed features etc), I present the user with a dialog like this:
Does the user actually read it? Will they find the dialog annoying? Will the user want to know about this information at all?
I'm not asking specifically for Android, this question applies on any platform.
I'm a programmer so when I see a changelog, I read it and feel happy because the software I'm using is getting better. I'm not sure about the general public.