In Unicode 5.1, the usage ofѸ (U+0478CYRILLIC CAPITAL LETTER UK) and its lower-case variantѹ (U+0479CYRILLIC SMALL LETTER UK) were deprecated. The recommended representation is with the diagraphО (U+041E) +у (U+0443) or the monographꙊ (U+A64ACYRILLIC CAPITAL LETTER MONOGRAPH UK).