Thanks for this very nice plugin, seems to work exactly as expected.
What would be a recommended way to hide the complete language switcher widget if there is no other language version of a post besides the default language?
Imagine a language switcher widget title like "This page in" or similar. It would only make sense if there is actually a translated version available.
If some internal constant would "know" if there are translations or not, then e.g. Widget Logic plugin could be used.
Thanks for suggestions.