The Unicode Standard is expected to be officially updated to version 5.1 around the end of March, and a draft summary of the changes is available. 1624 new characters will be added, bringing to total number defined to 100,507. New scripts are Kayah Li, Cham, Lepcha, Ol Chiki, Rejang, Saurashtra, Sundanese, Vai, Carian, Lycian, Lydian, plus the Phaistos disc, dominoes, and Mahjong symbols.
Unicode 5.1 will also enable the use of ideographic variation sequences. These allow standardized representation of variant glyphs in Japanese, Chinese, and Korean, according to the Uncode IV Database for such sequences.