Kana Supplement is a Unicode block containing one archaic katakana character and 255 hentaigana (non-standard Hiragana) characters. Additional hentaigana characters are encoded in the Kana Extended-A block.
The following Unicode-related documents record the purpose and process of defining specific characters in the Kana Supplement block:
As of 26 May 2024, 5 fonts are known to support the 10.0 Kana Supplement range: