__FORCETOC__ CJK Unified Ideographs Extension C is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese submitted to the Ideographic Research Group between 2002 and 2006, plus five "urgently needed" characters added in Unicode versions 14.0 and 15.0, some of which had previously been mistakenly unified with other characters.
The block has dozens of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD). These sequences specify the desired glyph variant for a given Unicode character.
Note that the Katakana ligature 𪜈 (U+2A708) has been erroneously encoded in this block as a Han character.IRG Working Set 2021
Block
History The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension C block:
Version Count L2 ID WG2 ID IRG ID Document 5.2 U+2A700..2B734 4,149 N2563 N3134 N1226 doc) N3190 N3244 N3267 doc) N3281, N1331 N3280, N1330 doc) N3279 N4111 N4103 N4558 doc) N4621 doc) N4682 N4739 N2202 N4987 N4988 doc) N5094 N2370 N5086 N2379 N5068 N5083 N2391 N2512R N2556R2 14.0 U+2B735 1 U+2B736 1 N2443 U+2B737 1 N2446 U+2B738 1 N2447 15.0 U+2B739 1 N2543 N2538R 17.0 U+2B73A 1 N5259 N2676 N2671 N5255 N2670 N5254 U+2B73B 1 N2691 N2702 N2704 U+2B73C..2B73D 2 N2709 N2702 N2704 U+2B73E 1 N2537 N2730 N2702 N2771 U+2B73F 1 N2782 N5297 N2765 N2767
References