Because it doesn't update to the latest software version. Mine is on 21.36.5 and there is at least one more recent version: 22.70.0. It should update automatically. It doesn't and the process needs to be fixed.
First, what does it really help you with thinking you need to be on the latest version?
And secondly, yes it will update to the latest version. People get impatient, thinking it needs to do that immediately, so they start with this tinkering and downloading and forcing manual updates, which isn't necessary. This has been seen that in a week or two, as it communicates with Tesla, they poll the installed connectors, and the updates get sent out. The updates with the cars have worked this way too, where they get rolled out in batches over time. People have always been impatient with that too, but didn't have a way to force it to go sooner; they just created threads here on the forum, complaining about how their car hadn't updated yet.