I never get notifications that apps are updated, and I even have it set up so that it should.... I've just gotten in the habit of checking my downloads manually every day.
This update did make it so that you can adjust the voicemail volume in google voice, however it adjusts the "in-call" volume to accomplish this. So, I've run into the problem that i turn the volume all the way up to listen to google voice and then when I make or receive a real call the volume is way too loud and I end up turning it back down again. Sigh, better than nothing though.