Hello! There is nothing wrong, you are up to date on the stable channel. When updates are announced they are pushed to the alpha channel first, then beta and finally stable. See the releases page. You may even see two or more update announcements before anything shows up for you, when that happens the previous update didn't make it to stable and a different release is/was made to replace it, like this time around. Feel free to switch to the alpha or beta channel yourself so you can help the developers by reporting bugs you may come across.
The newest one is in beta right now so chances are you'll get it soon.