No, but there are always updates to various applications, both those that are pre-installed and also those that are installed by you the user after the fact. Whatever update it was may have fix something such as a focusing issue or a lighting issue, or something else.
Agree with 94lt1
I tested it immediately on my DROID MAXX and was looking specifically for selecting focus and how quickly it reacted to changes in lighting and focus. It's much improved.