Openhabian-config -> 02 does not upgrade openHAB 3.4.2 to 3.4.5

Hi! I was running openHAB 3.4.2 and did the following to update to 3.4.5 in openhabian-config.
Chose point 01. OpenHABian version was set to openHab 3 so I chose execute. Then chose point 02. Upgrade the system.
OpenHAB was then upgraded to 3.4.4.
Did I do something wrong? Should I do another upgrade?

Do you get any error message ?
What if you run

sudo apt-get update

could it be that the signature of the repository is outdated and you do not use the actual key ?
In that case the above command should show an error message / hint.

No error messages.
How should I use a key in openhab-config.
What version of openhab do I get if I use “sudo apt-get update”

apt-get update
just updates the index of available packages. It dot not do any upgrade ( aka update ) of any packages.

In my test server, openHAB 3.4.5 was installed.
Ran the command “sudo apt-get update”.
Started openhabian-config.
Clone branch was set to openHAB 3.
Chose point 02 and then openHAB 4.0.1 was installed.
Shouldn’t just openHAB 3.4.5 be updated with any changes?
Was it “sudo apt-get update” that caused it?