Unicode/Versions

Unicode Standard
Discussion	Character Reference

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This page is about each version specification, and the differences between the versions.

Unicode 1.0

Unicode 1.0 was the first version of Unicode, released October 1991. It encoded 7,161 characters.

“Blocks”

This version of Unicode did not formally group characters in blocks. But in comparison with version 2.0, the following “blocks” were available:

• Basic Latin, containing 128 characters.
• Latin-1 Supplement, containing 128 characters.
• Latin Extended-A, containing 127 characters.
• Latin Extended-B, containing 113 characters.
• IPA Extensions, containing 89 characters.
• Spacing Modifier Letters, containing 57 characters.
• Combining Diacritical Marks, containing 66 characters.
• Greek, containing 112 characters.
• Cyrillic, containing 192 characters.
• Armenian, containing 84 characters.
• Hebrew, containing 52 characters.
• Arabic, containing 169 characters.
• Devanagari, containing 104 characters.
• Bengali, containing 89 characters.
• Gurmukhi, containing 74 characters.
• Gujarati, containing 75 characters.
• Oriya, containing 78 characters.
• Tamil, containing 61 characters.
• Telugu, containing 80 characters.
• Kannada, containing 80 characters.
• Malayalam, containing 78 characters.
• Thai, containing 92 characters.
• Lao, containing 70 characters.
• Tibetan, containing 71 characters.
• Georgian, containing 78 characters.
• General Punctuation, containing 67 characters.
• Superscripts and Subscripts, containing 28 characters.
• Currency Symbols, containing 11 characters.
• Combining Marks for Symbols, containing 18 characters.
• Letterlike Symbols, containing 57 characters.
• Number Forms, containing 48 characters.
• Arrows, containing 91 characters.
• Mathematical Operators, containing 242 characters.
• Miscellaneous Technical, containing 45 characters.
• Control Pictures, containing 37 characters.
• Optical Character Recognition, containing 11 characters.
• Enclosed Alphanumerics, containing 139 characters.
• Box Drawing, containing 128 characters.
• Block Elements, containing 22 characters.
• Geometric Shapes, containing 79 characters.
• Miscellaneous Symbols, containing 106 characters.
• Dingbats, containing 160 characters.
• CJK Symbols and Punctuation, containing 56 characters.
• Hiragana, containing 90 characters.
• Katakana, containing 90 characters.
• Bopomofo, containing 40 characters.
• Hangul Compatibility Jamo, containing 94 characters.
• Kanbun, containing 16 characters.
• Enclosed CJK Letters and Months, containing 191 characters.
• CJK Compatibility, containing 187 characters.
• Hangul Syllables, containing 2,350 characters.
• Private Use, reserved for 5,632 characters.
• CJK Compatibility Forms, containing 28 characters.
• Small Form Variants, containing 26 characters.
• Arabic Presentation Forms-B, containing 140 characters.
• Halfwidth and Fullwidth Forms, containing 216 characters.
• Specials, containing 1 character.

Unicode 1.1

Unicode 1.1 was released June 1993. It encoded 34,233 characters, and finalized the long anticipated Han Unification.

New blocks

• Hangul Jamo, containing 240 jamos for the Hangul script, was added.
• Latin Extended Additional, containing 245 precomposed characters for transliteration and Vietnamese, was added.
• Greek Extended , containing 233 precomposed characters for polytonic Greek, was added.
• CJK Unified Ideographs, containing 20,902 Han Ideographs for Chinese, Japanese and Korean was added.
• CJK Compatibility Ideographs, containing 302 Han Ideographs for compatibility with existing character sets was added.
• Alphabetic Presentation Forms, containing 57 precomposed characters and ligatures, was added.
• Arabic Presentation Forms-A, containing 593 combinations of Arabic letters, was added.
• Combining Half Marks, containing 4 halves of diacritical marks, was added.

Removed blocks

• Tibetan, containing 71 letters for the Tibetan script, was removed from the Unicode standard.

Extended blocks

• The long S (ſ) (total 1 character) was added to Latin Extended-A.
• The Hungarian Dz, characters for transliteration purposes and precomposed characters with double grave and inverted breve (total 35 characters) were added to Latin Extended-B.
• Diacritics for polytonic Greek and double width diacritics (total 6 characters) were added to Combining Diacritical Marks.
• Compatibility characters now deprecated (total 5 characters) were added to Greek and Coptic.
• Additional characters for non-Slavic languages (total 38 characters) were added to Cyrillic.
• A ligature of Ech and Yiwn (և) (total 1 character) was added to Armenian.
• One deprecated compatibility character and several characters for biblical texts (total 25 characters) were added to Arabic.
• The virama (o੍) (total 1 character) was added to Gurmukhi.
• The candra O and candra E vowels (total 3 characters) were added to Gujarati.
• The Ai length mark (oୖ) (total 1 character) was added to Oriya.
• An undertie, a pair of brackets and six formatting characters (total 9 characters) were added to General Punctuation.
• Some additional symbols and the complete set of APL functional symbols (total 78 characters) were added to Miscellaneous Technical.
• A large circle () (total 1 character) was added to Geometric Shapes.
• The ideographic telegraph line feed separator symbol () (total 1 character) was added to CJK Symbols and Punctuation.
• Four Katakana letters not in use since 1945 (total 4 characters) were added to Katakana.
• Ideographic telegraph symbols for the twelve months (total 12 characters) were added to Enclosed CJK Letters and Months.
• Ideographic telegraph symbols for hours and days and six additional measure units (total 62 characters) were added to CJK Compatibility.
• Some more space (total 2,304 characters) was added to the Private Use Area.
• Seven halfwidth geometric shapes (total 7 characters) were added to Halfwidth and Fullwidth Forms.

Unicode 2.0

Unicode 2.0 was released July 1996. It encoded 38,950 characters, and was the first Unicode version to reserve blocks outside of the Basic Multilingual Plane.

New blocks

• Hangul Syllables, containing 11,172 precomposed syllables for the Hangul script, was added.
• Supplementary Private Use Area-A and Supplementary Private Use Area-B, reserving a total of 131,068 characters for private use, was added.

Renew blocks

• Tibetan, containing 168 characters for the Tibetan script including religious signs, was readded.

Extended blocks

• The long S with dot above (ẛ) (total 1 character) was added to Latin Extended Additional.
• The Vietnamese dong (₫) (total 1 character) was added to Currency Symbols.
• Cantillation marks for use in religious texts (total 31 characters) were added to Hebrew.

Unicode 2.1

Unicode 2.1 was released May 1998. It encoded 38,952 characters, only 2 characters more than the last version.

Extended blocks

• The euro sign (€) (total 1 character) was added to Currency Symbols.
• The object replacement character () (total 1 character) was added to Specials.

Unicode 3.0

Unicode 3.0 was released September 1999. It was a big update and encoded 49,259 characters.

New blocks

• Syriac, containing 71 characters used for writing in Syriac script, was added.
• Thaana, containing 49 characters used for writing in Thaana script, was added.
• Sinhala, containing 80 characters for the Sinhala script, was added.
• Myanmar, containing 78 characters for the Burmese script, was added.
• Ethiopic, containing 345 syllables and punctuation marks for the Ethiopic script, was added.
• Cherokee, containing 85 syllables for the Cherokee script, was added.
• Unified Canadian Aboriginal Syllabics, containing 630 syllables and punctuation marks for writing in aboriginal languages of Canada, was added.
• Ogham, containing 29 characters for the ancient Ogham script, was added.
• Runic, containing 81 characters for the Germanic runes, was added.
• Khmer, containing 103 characters for the Khmer script, was added.
• Mongolian, containing 155 characters for the classical Mongolian script, was added.
• Braille Patterns, containing 256 Braille letters, was added.
• CJK Radicals Supplement, containing 115 non-Kangxi radicals, was added.
• Kangxi Radicals, containing 214 radicals from the Kangxi dictionary, was added.
• Ideographic Description characters, used to describe a Han ideograph not available in the font, was added.
• Bopomofo Extended, containing 24 characters used for phonetic transcription of minority languages of Taiwan, was added.
• CJK Unified Ideographs Extension A, containing 6,582 additional Han Ideographs, was added.
• Yi Syllables, containing 1,165 syllables of the modern Yi script, was added.
• Yi Radicals, containing 50 radicals of Yi Syllables, was added.

Extended blocks

• Additional precomposed characters, letters and capital letters of lowercase-only letters (total 30 characters) were added to Latin Extended-B.
• Extensions for disordered speech (total 5 characters) were added to IPA Extensions.
• Some additional modifier letters (total 6 characters) were added to Spacing Modifier Letters.
• Additional diacritics for IPA notation (total 10 characters) were added to Combining Diacritical Marks.
• Lowercase versions of archaic letters and the Kai symbol (total 5 characters) were added to Greek and Coptic.
• Nonstandard letters for Macedonian, combining numeral signs and three letters for Kildin Sami (total 12 characters) were added to Cyrillic.
• The hyphen (֊) (total 1 character) was added to Armenian.
• Combining hamza and maddah and nine additional Arabic characters (total 12 characters) were added to Arabic.
• Additional letters and religious symbols (total 25 characters) were added to Tibetan.
• A narrow no-break space and 6 additional punctuation marks (total 7 characters) were added to General Punctuation.
• The Kip, Tugrik and Drachma sign (total 3 characters) were added to Currency Symbols.
• An enclosing screen and an enclosing key (total 2 characters) were added to Combining Diacritical Marks for Symbols.
• The information symbol and a rotated Q (total 2 characters) were added to Letterlike Symbols.
• A mirrored Roman capital numeral hundred (Ↄ) (total 1 character) was added to Number Forms.
• Some additional arrows (total 9 characters) were added to Arrows.
• Some additional technical symbols, including common keys on a 101 keyboard (total 32 characters) were added to Miscellaneous Technical.
• Two additional control pictures (total 2 characters) were added to Control Pictures.
• Squares and circles with quadrants (total 8 characters) were added to Geometric Shapes.
• Two Syriac crosses and a signature mark (total 3 characters) were added to Miscellaneous Symbols.
• Three Hangzhou numerals and a variation indicator (total 4 characters) were added to CJK Symbols and Punctuation.
• An additional Hebrew ligature (יִ) (total 1 character) was added to Alphabetic Presentation Forms.
• Three additional control characters for ruby markup (total 3 characters) were added to Specials.

Unicode 3.1

Unicode 3.1 was released March 2001. It encoded 94,205 characters and mainly focused on blocks outside of the Basic Multilingual Plane.

New blocks

• Old Italic, containing 35 letters for the Etruscan script, was added.
• Gothic, containing 27 letters for the Gothic script, was added.
• Deseret, containing 76 letters for the artificial Deseret script, was added.
• Byzantine Musical Symbols, containing 246 symbols for musical notation in Byzantine, was added.
• Musical Symbols, containing 219 characters for current musical notation, was added.
• Mathematical Alphanumeric Symbols, containing 991 Latin and Greek letters in serif, sans-serif, bold, italic, double-struck, script and Fraktur, was added.
• CJK Unified Ideographs Extension B, containing 42,711 additional Han Ideographs, was added.
• CJK Compatibility Ideographs Supplement, containing 542 additional ideographs for compatibility purposes, was added.
• Tags, containing 97 language tags, was added.

Extended blocks

• The capital Theta symbol and the Lunate Epsilon symbol (total 2 characters) were added to Greek and Coptic.

Unicode 3.2

Unicode 3.2 was released March 2002. It encoded 95,221 characters.

New blocks

• Cyrillic Supplement, containing 16 characters used for the Komi language, was added.
• Tagalog, containing 20 characters for the Baybayin script, was added.
• Hanunoo, containing 23 characters and punctuation for the Hanunoo script, was added.
• Buhid, containing 20 characters for the Buhid script, was added.
• Tagbanwa, containing 18 characters for the Tagbanwa script, was added.
• Miscellaneous Mathematical Symbols-A, containing 28 symbols used in math notation, was added.
• Supplemental Arrows-A, containing 16 additional arrows, was added.
• Supplemental Arrows-B, containing 128 special arrows, was added.
• Miscellaneous Mathematical Symbols-B, containing 128 additional mathematical symbols, was added.
• Supplemental Mathematical Operators, containing 256 additional mathematical operators, was added.
• Katakana Phonetic Extensions, containing 16 Katakana letters used for Ainu, was added.
• Variation Selectors, containing 16 symbols used for indicating variations, was added.

Extended blocks

• The capital letter N with long right leg (Ƞ) (total 1 character) was added to Latin Extended-B.
• The combining grapheme joiner and combining Latin letters used in medieval texts (total 14 characters) were added to Combining Diacritical Marks.
• The Qoppa and a reversed lunate epsilon symbol (total 3 characters) were added to Greek and Coptic.
• Four additional letters used for the Kildin Sami language (total 8 characters) were added to Cyrillic.
• A dotless Beh and a dotless Qaf (total 2 characters) were added to Arabic.
• The letter Naa (ޱ) (total 1 character) was added to Thaana.
• The letters Yn and Elifi (total 2 characters) were added to Georgian.
• Some additional punctuation marks and control characters (total 12 characters) were added to General Punctuation.
• A superscript i (ⁱ) (total 1 character) was added to Superscripts and Subscripts.
• The old penny sign and the peso sign (total 2 characters) were added to Currency Symbols.
• Some additional combining characters (total 7 characters) were added to Combining Diacritical Marks for Symbols.
• Some double-struck and reversed/turned letters (total 15 characters) were added to Letterlike Symbols.
• Some additional arrows (total 12 characters) were added to Arrows.
• Some additional mathematical operators (total 14 characters) were added to Mathematical Operators.
• Variable-width and additional symbols (total 53 characters) were added to Miscellaneous Technical.
• Black and double circled numerals (total 20 characters) were added to Enclosed Alphanumerics.
• Quadrant elements (total 10 characters) were added to Block Elements.
• Some additional triangles and squares (total 8 characters) were added to Geometric Shapes.
• Shogi pieces ,recycling symbols, dices and dotted circles (total 24 characters) were added to Miscellaneous Symbols.
• Additional parenthesis (total 14 characters) were added to Dingbats.
• Three additional marks (total 3 characters) were added to CJK Symbols and Punctuation.
• A digraph and two additional characters (total 3 characters) were added to Hiragana.
• A digraph and a double hyphen (total 2 characters) were added to Katakana.
• Additional circled numerals (total 30 characters) were added to Enclosed CJK Letters and Months.
• Five missing radicals (total 5 characters) were added to Yi Radicals.
• Additional compatibility characters (total 59 characters) were added to CJK Compatibility Ideographs.
• The rial sign (﷼) (total 1 character) was added to Arabic Presentation Forms-A.
• Two sesame dots (total 2 characters) were added to CJK Compatibility Forms.
• A tail fragment (ﹳ) (total 1 character) was added to Arabic Presentation Forms-B.
• A pair of double parenthesis (total 2 characters) was added to Halfwidth and Fullwidth Forms.

Unicode 4.0

Unicode 4.0 was released April 2003. It encoded 96,447 characters.

New blocks

• Limbu, containing 66 characters for the Limbu abugida, was added.
• Tai Le, containing 35 letters for the Tai Le script, was added.
• Khmer Symbols, containing 32 symbols for the lunar calendar, was added.
• Phonetic Extensions, containing 108 letters used in phonetic transcription, was added.
• Miscellaneous Symbols and Arrows, containing 14 additional arrows, was added.
• Yijing Hexagram Symbols, containing 64 hexagrams, was added.
• Linear B Syllabary, containing 88 syllables of the ancient Linear B script, was added.
• Linear B Ideograms, containing 123 ideograms of the ancient Linear B script, was added.
• Aegean Numbers, containing 57 numerals used in the Aegean area, was added.
• Ugaritic, containing 31 characters used in Ugaritic cuneiform, was added.
• Shavian, containing 48 letters used for the artificial Shavian script, was added.
• Osmanya, containing 40 characters used in the artificial Osmanya script, was added.
• Cypriot Syllabary, containing 55 characters formerly used on Cyprus, was added.
• Tai Xuan Jing Symbols, containing 87 symbols of Tai Xuan Jing, was added.
• Variation Selectors Supplement, containing 240 additional variation selectors, was added.

Extended blocks

• Letters with curl used in Sinology (total 4 characters) were added to Latin Extended-B.
• Former IPA letters (total 2 characters) were added to IPA Extensions.
• Some additional characters (total 17 characters) were added to Spacing Modifier Letters.
• Additional combining double-width diacritics and diacritics corresponding to their spacing equivalent (total 11 characters) were added to Combining Diacritical Marks.
• The archaic letters Sho and San and the capital Lunate Sigma (total 5 characters) were added to Greek and Coptic.
• Some additional markers, biblical signs, and letters with inverted V (total 19 characters) were added to Arabic.
• Letters used for foreign words from Persian and Sogdian (total 6 characters) were added to Syriac.
• The short A (ऄ) (total 1 character) was added to Devanagari.
• The Avagraha sign (ঽ) (total 1 character) was added to Bengali.
• The Adak Bindi and Visarga signs (total 2 characters) were added to Gurmukhi.
• The vocalic l and ll and the Rupee sign (total 5 characters) were added to Gujarati.
• The letters Va and Wa (total 2 characters) were added to Oriya.
• Additional signs for date and finance environments (total 8 characters) were added to Tamil.
• The Nukta and Avagraha signs (total 2 characters) were added to Kannada.
• Some symbols and signs (total 11 characters) were added to Khmer.
• An inverted undertie and a swung dash (total 2 characters) were added to General Punctuation.
• The facsimile sign (℻) (total 1 character) was added to Letterlike Symbols.
• The eject symbol and a vertical line (total 2 characters) were added to Miscellaneous Technical.
• A black circled digit zero (⓿) (total 1 character) was added to Enclosed Alphanumerics.
• Monograms and diagrams, flags, warning and weather symbols and a cup of tea (total 12 characters) were added to Miscellaneous Symbols.
• Additional parenthesized and circled Korean characters and supplemental signs (total 9 characters) were added to Enclosed CJK Letters and Months.
• Additional measure units (total 7 characters) were added to CJK Compatibility.
• An additional Arabic sign (﷽) (total 1 character) was added to Arabic Presentation Forms-A.
• A pair of vertical parenthesis (total 2 characters) was added to CJK Compatibility Forms.
• The letters Oi and Ew (total 4 characters) were added to Deseret.
• A small script l (ℓ) (total 1 character) was added to Mathematical Alphanumeric Symbols.

Unicode 4.1

Unicode 4.1 was released March 2005. It encoded 97,720 characters.

New blocks

• Arabic Supplement, containing 30 characters for various languages written with the Arabic script, was added.
• Ethiopic Supplement, containing 26 characters and signs for Sebatbeit, was added.
• New Tai Lue, containing 80 characters for the New Tai Lue script, was added.
• Buginese, containing 30 characters for the Lontara script, was added.
• Phonetic Extensions Supplement, containing 64 additional letters for phonetic transcription, was added.
• Combining Diacritical Marks Supplement, containing 4 additional diacritics, was added.
• Glagolitic, containing 94 characters for the Glagolitic script, was added.
• Coptic, containing 114 characters for the Coptic script, was added.
• Georgian Supplement, containing 38 Nuskhuri letters, was added.
• Tifinagh, containing 55 characters for the Tifinagh script, was added.
• Ethiopic Extended, containing 79 additional Ethiopic syllables, was added.
• Supplemental Punctuation, containing 26 additional punctuation marks, was added.
• CJK Strokes, containing 16 strokes for Han Ideographs, was added.
• Modifier Tone Letters, containing 23 letters for Chinese tones, was added.
• Syloti Nagri, containing 44 characters for the Syloti Nagri abugida, was added.
• Vertical Forms, containing 10 punctuation marks suited for vertical text, was added.
• Ancient Greek Numbers, containing 75 numerals and signs used in Ancient Greek, was added.
• Old Persian, containing 50 characters for Old Persian cuneiform, was added.
• Kharoshthi, containing 65 characters for the Kharoshthi abugida, was added.
• Ancient Greek Musical Notation, containing 70 musical signs used in Ancient Greek, was added.

Extended blocks

• Letters for Sencoten, digraphs, letters with swash tail and other additions (total 11 characters) were added to Latin Extended-B.
• Additional diacritics for transliteration (total 5 characters) were added to Combining Diacritical Marks.
• Rho with stroke, reversed and dotted Lunate Sigma (total 4 characters) were added to Greek and Coptic.
• Ghe with descender (Ӷ) (total 2 characters) was added to Cyrillic.
• An additional biblical mark and some punctuation marks (total 4 characters) were added to Hebrew.
• Additional biblical marks, punctuation marks and the Afghani sign (total 8 characters) were added to Arabic.
• A glottal stop (ॽ) (total 1 character) was added to Devanagari.
• The Khanda Ta letter (ৎ) (total 1 character) was added to Bengali.
• The letter Sha and the digit zero (total 2 characters) were added to Tamil.
• Two marks used in Bhutan (total 2 characters) were added to Tibetan.
• Two letters and a modifier letter (total 3 characters) were added to Georgian.
• Some additional syllables (total 11 characters) were added to Ethiopic.
• Additional phonetic symbols (total 20 characters) were added to Phonetic Extensions.
• A flower and dot punctuation marks (total 9 characters) were added to General Punctuation.
• Additional subscript letters (total 5 characters) were added to Superscripts and Subscripts.
• The Guarani, Austral, Hryvnia and Cedi signs (total 4 characters) were added to Currency Symbols.
• A combining long double solidus (⃫) (total 1 character) was added to Combining Diacritical Marks for Symbols.
• The per sign and a double-struck letter Pi (total 2 characters) were added to Letterlike Symbols.
• Metrical and electrical signs (total 11 characters) were added to Miscellaneous Technical.
• Additional gender and map symbols (total 30 characters) were added to Miscellaneous Symbols.
• Some additional mathematical symbols (total 7 characters) were added to Miscellaneous Mathematical Symbols-A.
• Additional arrows and squares (total 6 characters) were added to Miscellaneous Symbols and Arrows.
• A circled Hangul character (㉾) (total 1 character) was added to Enclosed CJK Letters and Months.
• Additional Han Ideographs (total 22 characters) were added to CJK Unified Ideographs.
• Additional Compatibility Ideographs (total 106 characters) were added to CJK Compatibility Ideographs.
• Italic dotless small i and j (total 2 characters) were added to Mathematical Alphanumeric Symbols.

Unicode 5.0

Unicode 5.0 was released July 2006. It encoded 99,089 characters.

New blocks

• N'Ko, containing 59 characters for the N'Ko script, was added.
• Balinese, containing 121 characters and musical signs for the Balinese abugida, was added.
• Latin Extended-C, containing 17 letters for various languages, was added.
• Latin Extended-D, containing 2 characters for UPA, was added.
• Phags-pa, containing 56 characters for the Phags-pa script, was added.
• Phoenician, containing 27 letters and numerals for the Phoenician script, was added.
• Cuneiform, containing 879 signs for Sumero-Akkadian Cuneiform, was added.
• Cuneiform Numbers and Punctuation, containing 103 numerals and punctuation signs for Sumero-Akkadian Cuneiform, was added.
• Counting Rod Numerals, containing 18 numerals used with counting rods, was added.

Extended blocks

• Various letters used mainly for aboriginal languages (total 14 characters) were added to Latin Extended-B.
• Lowercase lunate sigma symbols (total 3 characters) were added to Greek and Coptic.
• Lowercase palochka and 3 letters used in Nivkh (total 7 characters) were added to Cyrillic.
• Two letters used in Khanty and other languages (total 4 characters) were added to Cyrillic Supplement.
• A specific point meant for Vav (ֺ) (total 1 character) was added to Hebrew.
• Four letters used in Sindhi (total 4 characters) were added to Devanagari.
• Four letters used in Sanskrit (total 4 characters) were added to Kannada.
• Additional IPA diacritics (total 9 characters) were added to Combining Diacritical Marks Supplement.
• Four combining arrows (total 4 characters) were added to Combining Diacritical Marks for Symbols.
• A danish symbol and a lowercase turned F (total 2 characters) were added to Letterlike Symbols.
• A lowercase reversed C (ↄ) (total 1 character) was added to Number Forms.
• Vertical parenthesis, geometric forms and electrical symbols (total 12 characters) were added to Miscellaneous Technical.
• A neuter symbol (⚲) (total 1 character) was added to Miscellaneous Symbols.
• Four additional mathematical symbols (total 4 characters) were added to Miscellaneous Mathematical Symbols-A.
• Additional squares, pentagons and hexagons (total 11 characters) were added to Miscellaneous Symbols and Arrows.
• Four additional tone letters used in Chinantec (total 4 characters) were added to Modifier Tone Letters.
• Bold Digamma (𝟊/Ϝ) (total 2 characters) was added to Mathematical Alphanumeric Symbols.

Unicode 5.1

Unicode 5.1 was released March 2008. It encoded 100,713 characters.

New blocks

• Sundanese, containing 55 characters, was added.
• Lepcha, containing 74 characters, was added.
• Ol Chiki, containing 48 characters, was added.
• Cyrillic Extended-A, containing 32 characters, was added.
• Vai, containing 300 characters, was added.
• Cyrillic Extended-B, containing 78 characters, was added.
• Saurashtra, containing 81 characters, was added.
• Kayah Li, containing 48 characters, was added.
• Rejang, containing 37 characters, was added.
• Cham, containing 83 characters, was added.
• Ancient Symbols, containing 12 characters, was added.
• Phaistos Disc, containing 46 characters, was added.
• Lycian, containing 29 characters, was added.
• Carian, containing 49 characters, was added.
• Lydian, containing 27 characters, was added.
• Mahjong Tiles, containing 44 characters, was added.
• Domino Tiles, containing 100 characters, was added.

Extended blocks

• (total 7 characters) were added to Greek and Coptic.
• (total 1 character) was added to Cyrillic.
• (total 16 characters) were added to Cyrillic Supplement.
• (total 15 characters) were added to Arabic.
• (total 18 characters) were added to Arabic Supplement.
• (total 2 characters) were added to Devanagari.
• (total 2 characters) were added to Gurmukhi.
• (total 3 characters) were added to Oriya.
• (total 1 character) was added to Tamil.
• (total 13 characters) were added to Telugu.
• (total 17 characters) were added to Malayalam.
• (total 6 characters) were added to Tibetan.
• (total 78 characters) were added to Myanmar.
• (total 1 character) was added to Mongolian.
• (total 28 characters) were added to Combining Diacritical Marks Supplement.
• (total 10 characters) were added to Latin Extended Additional.
• (total 1 character) was added to General Punctuation.
• (total 1 character) was added to Combining Diacritical Marks for Symbols.
• (total 1 character) was added to Letterlike Symbols.
• (total 4 characters) were added to Number Forms.
• (total 15 characters) were added to Miscellaneous Symbols.
• (total 5 characters) were added to Miscellaneous Mathematical Symbols-A.
• (total 51 characters) were added to Miscellaneous Symbols and Arrows.
• (total 12 characters) were added to Latin Extended-C.
• (total 23 characters) were added to Supplemental Punctuation.
• (total 1 character) was added to Bopomofo.
• (total 20 characters) were added to CJK Strokes.
• (total 8 characters) were added to CJK Unified Ideographs.
• (total 5 characters) were added to Modifier Tone Letters.
• (total 112 characters) were added to Latin Extended-D.
• (total 3 characters) were added to Combining Half Marks.
• (total 1 character) was added to Musical Symbols.

Unicode 5.2

Unicode 5.2 was released in October 2009. It encoded 107,361 characters.

New blocks

• Samaritan, containing 61 characters, was added.
• Unified Canadian Aboriginal Syllabics Extended, containing 70 characters, was added.
• Tai Tham, containing 127 characters, was added.
• Vedic Extensions, containing 35 characters, was added.
• Lisu, containing 48 characters, was added.
• Bamum, containing 88 characters, was added.
• Common Indic Number Forms, containing 10 characters, was added.
• Devanagari Extended, containing 28 characters, was added.
• Hangul Jamo Extended-A, containing 29 characters, was added.
• Javanese, containing 91 characters, was added.
• Myanmar Extended-A, containing 28 characters, was added.
• Tai Viet, containing 72 characters, was added.
• Meetei Mayek, containing 56 characters, was added.
• Hangul Jamo Extended-B, containing 72 characters, was added.
• Imperial Aramaic, containing 31 characters, was added.
• Old South Arabian, containing 32 characters, was added.
• Avestan, containing 61 characters, was added.
• Inscriptional Parthian, containing 30 characters, was added.
• Inscriptional Pahlavi, containing 27 characters, was added.
• Old Turkic, containing 73 characters, was added.
• Rumi Numeral Symbols, containing 31 characters, was added.
• Kaithi, containing 66 characters, was added.
• Egyptian hieroglyphics, containing 1,071 characters, was added.
• Enclosed Alphanumeric Supplement, containing 63 characters, was added.
• Enclosed Ideographic Supplement, containing 44 characters, was added.
• CJK Unified Ideographs Extension C, containing 4,149 characters, was added.

Extended blocks

• (total 2 characters) was added to Cyrillic Supplement.
• (total 5 characters) was added to Devanagari.
• (total 1 character) was added to Bengali.
• (total 4 characters) was added to Tibetan.
• (total 4 characters) was added to Myanmar.
• (total 16 characters) was added to Hangul Jamo.
• (total 10 characters) was added to Unified Canadian Aboriginal Syllabics.
• (total 3 characters) was added to New Tai Lue.
• (total 1 character) was added to Combining Diacritical Marks Supplement.
• (total 3 characters) was added to Currency Symbols.
• (total 4 characters) was added to Number Forms.
• (total 1 characters) was added to Miscellaneous Technical.
• (total 59 characters) was added to Miscellaneous Symbols.
• (total 1 character) was added to Dingbats.
• (total 5 characters) was added to Miscellaneous Symbols and Arrows.
• (total 3 characters) was added to Latin Extended-C.
• (total 7 characters) was added to Coptic.
• (total 1 character) was added to Supplemental Punctuation.
• (total 12 characters) was added to Enclosed CJK Letters and Months.
• (total 8 characters) was added to CJK Unified Ideographs.
• (total 3 characters) was added to CJK Compatibility Ideographs.
• (total 2 characters) was added to Phoenician.

Unicode 6.0

Unicode 6.0 was released in October 2010. It encoded 109,449 characters.

New Blocks

• Mandaic, containing 29 characters, was added.
• Batak, containing 56 characters, was added.
• Ethiopic Extended-A, containing 32 characters, was added.
• Brahmi, containing 108 characters, was added.
• Bamum Supplement, containing 761 characters, was added.
• Kana Supplement, containing 2 characters, was added.
• Playing Cards, containing 59 characters, was added.
• Miscellaneous Symbols and Pictographs, containing 529 characters, was added.
• Emoticons, containing 63 characters, was added.
• Transport and Map Symbols, containing 70 characters, was added.
• Alchemical Symbols, containing 116 characters, was added.
• CJK Unified Ideographs Extension D, containing 222 characters, was added.

Extended blocks

• (total 2 characters) was added to Cyrillic Supplement.
• (total 2 characters) was added to Arabic.
• (total 10 characters) was added to Devanagari.
• (total 6 characters) was added to Oriya.
• (total 3 characters) was added to Malayalam.
• (total 6 characters) was added to Tibetan.
• (total 2 characters) was added to Ethiopic.
• (total 1 character) was added to Combining Diacritical Marks Supplement.
• (total 8 characters) was added to Superscripts and Subscripts.
• (total 1 character) was added to Currency Symbols.
• (total 11 characters) was added to Miscellaneous Technical.
• (total 6 characters) was added to Miscellaneous Symbols.
• (total 16 characters) was added to Dingbats.
• (total 2 characters) was added to Miscellaneous Mathematical Symbols-A.
• (total 2 characters) was added to Tifinagh.
• (total 3 characters) was added to Bopomofo Extended.
• (total 2 characters) was added to Cyrillic Extended-B.
• (total 15 characters) was added to Latin Extended-D.
• (total 16 characters) was added to Arabic Presentation Forms-A.
• (total 107 characters) was added to Enclosed Alphanumeric Supplement.
• (total 13 characters) was added to Enclosed Ideographic Supplement.

Unicode 6.1

Unicode 6.1 was released in January 2012. It encoded 110,181 characters.

A total of 732 new characters have been added.

New Blocks

• Arabic Extended-A, containing 39 characters, was added.
• Sundanese Supplement, containing 8 characters, was added.
• Meetei Mayek Extensions, containing 23 characters, was added.
• Meroitic Hieroglyphs, containing 32 characters, was added.
• Meroitic Cursive, containing 26 characters, was added.
• Sora Sompeng, containing 35 characters, was added.
• Chakma, containing 67 characters, was added.
• Sharada, containing 83 characters, was added.
• Takri, containing 66 characters, was added.
• Miao, containing 133 characters, was added.
• Arabic Mathematical Alphabetic Symbols, containing 143 characters, was added.

Extended blocks

• (total 1 character) was added to Armenian.
• (total 1 character) was added to Arabic.
• (total 1 character) was added to Gujarati.
• (total 2 characters) was added to Lao.
• (total 5 characters) was added to Georgian.
• (total 9 characters) was added to Sundanese.
• (total 4 characters) was added to Vedic Extensions.
• (total 2 characters) was added to Miscellaneous Mathematical Symbols-A.
• (total 2 characters) was added to Coptic.
• (total 2 characters) was added to Georgian Supplement.
• (total 2 characters) was added to Tifinagh.
• (total 10 characters) was added to Supplemental Punctuation.
• (total 1 character) was added to CJK Unified Ideographs.
• (total 9 characters) was added to Cyrillic Extended-B.
• (total 5 characters) was added to Latin Extended-D.
• (total 2 characters) was added to CJK Compatibility Ideographs.
• (total 2 characters) was added to Enclosed Alphanumeric Supplement.
• (total 4 characters) was added to Miscellaneous Symbols and Pictographs.
• (total 13 characters) was added to Emoticons.

Unicode 6.2

Unicode 6.2.0 a minor release, as of September 2012 is the current version.

It encodes 110,117 characters.

Extended blocks

• (total 1 character) accelerated publication of a single character: U+20BA TURKISH LIRA SIGN.

Plus a 6.1.1 amendment  

• (total 1 character) accelerated publication of a single character: U+20B9 INDIAN RUPEE SIGN.