While trying to script deployment of .msu's I realized that certain KB articles had multiple releases. One example of this is KB2524426.
KB2524426 was released May 2011 and re-released June 2011. There are similar other re-releases KB2536276.
Since the KB article is part of the file name I used this thinking that each contained a unique update (.msu). Now that I know this is not the case, I'm trying to figure out if taking the most recent KB release will suffice when creating/deploying an update package.