Here's the deal. I published the third release for my application. As soon as microsoft emailed me that my third release is in the store, I went in and checked it. It was there. I downloaded it. I did the same on the brothers laptop. This version of my application was supposed to reduce some errors that were noted from my friend. Therefore, when the version was live, I told him to download the update. So he did. I received a search in the store to update the update application, but the store told him that he had the latest version. He checked the version of his application, and that was the version.
Conclusion: when the update is live on the store, even after a few days it does not live for everyone