This new version brings a better support for components and recents architectures. It also offers better stability, resolves a lot of bugs and also introduce some security upgrades.
Debian 9 may be used for a lot of purpose such as database servers, web servers, storage servers etc... All of these uses make Debian 9 an universal distribution for all your needs.
Go to your control panel, Install/Reinstall section and select Debian 9 distribution.
