Add warning when CLI is used with a potentially unsafe version of the backend

[SchoolGuy]

Is your feature request related to a problem?

As a user
I want to minimize the risk to break my backend
so that I can prevent downtime of the backend.

Provide a detailed description of the proposed feature

While technically we can improve the version compatibility endlessly, after a given time it doesn't make sense to spend the time as this is getting too complicated. As such we should warn when the CLI is used with a potentially incompatible new or old backend.

This warning should either have an interactive question or a long flag that must be explicitly given to accept the risk.

Alternatives you've considered

None

Additional information

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