[account42]

Not generally no, but some applications used it that way because of ambiguity of upppercasing ß to SS - which is why ẞ was added.

[Towaway69]

On the other hand, the German language has existed for several hundred years without having a capital ß but now it needs one?

True capitalisation has always existed but even that didn’t seem to have required a capital ß - why now?