my rule for the driver updater, if the OEM no longer supports the PC use the driver updater, if your drivers are still handled by the OEM (and by relation Windows Update) stick with those. The OEMs often use altered drivers to best work on your machine and may not be as update acurrate.
Beta version, no, I think you have the latest version 7 (7.8 is the stable), beta is achieved by (under updates) agreeing to the opt-in of insider program. And is only (right now) a organization of tools and the ability to start on custom clean rather than healthcheck.