U+1E9E "ẞ" Latin Capital Letter Sharp S Unicode Character

U+1E9E "ẞ" Latin Capital Letter Sharp S is a unique and relatively recent addition to the character set, officially encoded in version 5.1 of the Unicode Standard in 2008. It represents the capital form of the lowercase sharp s ("ß"), which is traditionally used in German orthography. For many years, the absence of an uppercase version was a notable exception in the Latin alphabet, as the "ß" was always written in lowercase form even at the start of words or in all-caps headings, where it was commonly substituted with the digraph "SS". The creation of the capital ẞ resolved this inconsistency, allowing for a true uppercase equivalent that maintains the distinct visual shape of the sharp s. While its adoption in official German spelling rules and typefaces has been gradual, it is now recognized as a standard character for use in titles, abbreviations, and proper nouns where capitalization is required.