Omega is an extension of the TeX typesetting system that uses the Basic Multilingual Plane of Unicode. It was authored by John Plaice and Yannis Haralambous after TeX development was frozen in 1991,[citation needed] primarily to enhance TeX's multilingual typesetting abilities. It includes a new 16-bit font encoding for TeX, as well as fonts (omlgc and omah) covering a wide range of alphabets.
At the 2004 TeX Users Group conference, Plaice announced his decision to split off a new project (not yet public), while Haralambous continued to work on Omega proper.
LaTeX for Omega is invoked as lambda.