The first Georgian script was included in Unicode Standard in October, 1991 with the release of version 1.0. In creating the Georgian Unicode block, important roles were played by German Jost Gippert, a linguist of Kartvelian studies, and American-Irish linguist and script-encoder Michael Everson, who created the Georgian Unicode for the Macintosh systems. Significant contributions were also made by Anton Dumbadze and Irakli Garibashvili (not to be mistaken with the former Prime Minister of Georgia Irakli Garibashvili). Georgian "Mkhedruli" script received an official status for being Georgia's internationalized domain name script for (.გე). Mtavruli letters were added in Unicode version 11.0 in June 2018. They are capital letters with similar letterforms to Mkhedruli, but with descenders shifted above the baseline, with a wider central oval, and with the top slightly higher than the ascender height. Before this addition, font creators included Mtavruli in various ways. Some fonts came in pairs, of which one had lowercase letters and the other uppercase; some Unicode fonts placed Mtavruli letterforms in the Asomtavruli range (U+10A0-U+10CF) or in the Private Use Area, and some ASCII-based ones mapped them to the ASCII capital letters. Georgian characters are found in three Unicode blocks. The first block (U+10A0–U+10FF) is simply called Georgian. Mkhedruli (modern Georgian) occupies the U+10D0–U+10FF range (shown in the bottom half of the first table below) and Asomtavruli occupies the U+10A0–U+10CF range (shown in the top half of the same table). The second block is the Georgian Supplement (U+2D00–U+2D2F), and it contains Nuskhuri. Mtavruli capitals are included in the Georgian Extended block (U+1C90–U+1CBF). Mtavruli is defined as the upper case, but not title case, of Mkhedruli, and Asomtavruli as the upper case and title case of Nuskhuri. There is no non-Unicode character encoding for Georgian, which prevents non-Unicode applications from being able to support the Georgian script.