The Unicode Standard will include 622 new CJK characters in Version 15.1, which will be released on September 12, 2023. The characters are in a new block, CJK Unified Ideographs Extension I, with code point assignments as reflected in the proposal document.
The characters in the Extension I block have been deemed to be very urgently needed for use in China. The Extension I proposal was based on characters that appeared in a draft amendment of China’s mandatory GB 18030 standard. For this reason, the Unicode Technical Committee (UTC) considered it imperative to arrive at a stable encoding for these characters as quickly as possible.
With the Unicode 15.1 beta review period completed, and with endorsements from liaison partners, China Electronics Standardization Institute (CESI) and ISO/IEC JTC 1/SC 2, UTC at its recent meeting was able to commit to including these characters for this next release of the Unicode Standard. The code point assignments are now stable, and vendors can begin working on implementations with confidence.
The Unicode Consortium would like to thank experts in UTC’s CJK & Unihan Group and ISO’s Ideographic Research Group (IRG) for their expedited work in preparing a proposal for encoding CJK Extension I, and would also like to thank Mr. Chen Zhuang and partners in CESI for their cooperation in this process.
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