Keeping Unity Up To Date

Just wondering why when I check for updates in the editor, it tells me my version, and that I’m up to date, despite there being a minor upgrade for the download. For instance, I have 2018.1.0f2, but if I download the latest version right now, I get 2018.1.1f1. I realize this is a very minor upgrade, but I have no idea what bug fixes or tweaks it contains.

Is the upgrade process broken here, or does Unity simply neglect minor upgrades on purpose?

Same issue here.