How to get official updates

Hi guys,
I have what seems to be a very basic question.
How do I receive updates/latest version for both bindings and openhab itself. I am talking about official updates (thus for bindings) and not snapshots.

Would a simple sudo apt-get upgrade suffice?
Thanks!!
Sascha

yes.
sudo apt-get update
sudo apt-get upgrade

you should get the stable 2.2 when you do.

If you wont to use a stable version, you have to wait for the next stable version. That is the save way.

Fyi:
OpenHab 2.0 was released on 21 Jan 2017
OpenHab 2.1 was released on 28 Jun 2017
OpenHab 2.2 was released on 18 Dec 2017

(Dates from https://github.com/openhab/openhab-distro/releases)

Is that only for openhab itself, or also all the bindings?

I don’t think bindings are released separately.

Binding and OH core are all realeased at the same time and use the same version number. Everything is released in synch.