The Cyrillic Extended-D block spans U+1E030–U+1E08F, 96 codepoints in Plane 1 (Supplementary Multilingual Plane). 63 are assigned in Unicode 16.0; the other 33 are reserved for future characters.
All of its characters belong to the Cyrillic script.
By general category: 62 modifier letters (Lm), 1 non-spacing marks (Mn).
The first 63 arrived in Unicode 15.0 (2022).
62 characters here have compatibility decompositions: they are formatting variants of other characters and are replaced by them under NFKC and NFKD. See normalization.
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.