For whatever reason, it appears that when I upgraded WinSCP, it reverted the install to a much older version. I've no idea how this happened. Doing another install from the same file brought things up to the current version. (??)
I upgraded to the latest version of WinSCP and now it appears that the "auto reconnect after timeout" no longer works. Once the connection times out after some period of inactivity, it just sits there with a dialog box. There is a reconnect button, but it has to be pressed manually before WinSCP will reconnect.
Is this normal now, or...?