Are you saying it did not inform you of updates since yesterday? Sometimes that can happen. I have trouble getting updates for my iPhone, so I just open the App Store every now and then to check for updates. You could also check for updates using iTunes.
You might want to clear some of your inactive apps to free up memory space before trying to perform your updates. You might want to also consider doing only a few at a time instead of "update all". Some of my astronomy apps are huge, for example, so I'll often do those one at a time.