On some version upgrades the built-in farmerswife (fw) Client auto-upgrade process IS DIFFERENT!!!
If the normal "simple in-application auto-upgrade" is NOT supported on the initial upgrade from a lower version, in order to upgrade, the farmerswife Client applications need to be either ONCE manually upgraded by using the installers of the version you want to upgrade to.
Or each user can use the built-in FULL-installer-download auto-upgrade functionality (if allowed = requires Operating System read write and execute permissions), which will be triggered upon first log-in to the already upgraded fw Server application.
This means, upon login with the fw Client Desktop app, the user has to choose a location where the installer file will be stored on the local machine ... to then automatically continue with the (manual) upgrade process.
NOTE: The simple auto-client upgrade will work again for any farmerswife Client which was once manually upgraded unless indicated.