sz is officially still an accepted substitution for ß though. It's basically never used, except if you capitalize a word with ß and substituting ss would lead t

sz is officially still an accepted substitution for ß though. It's basically never used, except if you capitalize a word with ß and substituting ss would lead to confusion (if both words exist and would make sense). Of course since 2017 the upper case ẞ is also an option, but nobody wants to use that either.