• Application version: 17.0.9, 16.0.1
• Operating System (Platform and Version): Windoes 10 64bit

Expected Behavior
Executing older version of installer should warn that earlier version is installed and stop

Actual behavior
Silent installation and existing history vanished.

To Reproduce
Install latest version, run some calls, exit, install older version.

Screenshots
N/A

Additional Information
Installer should have some kind prompt to start installation and version indication at least.