Operating system
Windows
Joplin version
3.0.15
Desktop version info
3.0.15
What issue do you have?
Upgrade requires Joplin not be running.
Exiting the Joplin desktop app by using the Close button in the right hand side of the title bar is insufficient, it cannot install unless use the File / Quit menu item to exit the application (or reboot).
Why does the Close button ('X') not do the same action as the File Menu / Quit item? What is the purpose of the Close button if not to exit the application?