Note: Four characters (two upper and lower case letter pairs) were removed from the Cyrillic block in version 1.0.1 during the process of unifying with ISO 10646.[1][2][3]
Cyrillic is a Unicode block containing the characters used to write the most widely used languages with a Cyrillic orthography. The core of the block is based on the ISO 8859-5 standard, with additions for minority languages and historic orthographies.
Moore, Lisa (2006-05-25), "Consensus 107-C39", UTC #107 Minutes, Change the glyphs for U+0485 COMBINING CYRILLIC DASIA PNEUMATA and U+0486 COMBINING CYRILLIC PSILI PNEUMATA
Umamaheswaran, V. S. (2007-02-16), "M49.1f", Unconfirmed minutes of WG 2 meeting 49 AIST, Akihabara, Tokyo, Japan; 2006-09-25/29, Correct the glyphs for 0485 COMBINING CYRILLIC DASIA PNEUMATA and 0486 COMBINING CYRILLIC PSILI PNEUMATA based on document N3118.
Everson, Michael; Birnbaum, David; Cleminson, Ralph; Derzhanski, Ivan; Dorosh, Vladislav; Kryukov, Alexey; Paliga, Sorin (2006-10-30), On CYRILLIC LETTER OMEGA WITH TITLO and on CYRILLIC LETTER UK
Umamaheswaran, V. S. (2007-07-26), "M50.8 (Cyrillic glyph corrections)", Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27
Umamaheswaran, V. S. (2008-08-13), "M52.1", Unconfirmed minutes of WG 2 meeting 52, Change the glyphs for 04A8, 04A9, 04BE and 04BF (Abkhasian letters) to those shown in document N3435 to reflect modern Abkhaz orthography preference.