The lowercase insular g (ᵹ) was used in Irish linguistics as a phonetic character for [ɣ], and on this basis is encoded in the Phonetic Extensions block of Unicode 4.1 (March 2005) as U+1D79. Its capital (Ᵹ) was introduced in Unicode 5.1 (April 2008) at U+A77D. The insular g is one of several insular letters encoded into Unicode but few fonts will display all of these symbols although some will display the lowercase insular g (ᵹ) and the tironian et (⁊). Two fonts that support the other characters are Junicode and Tehuti.
The relationship between different fonts, showing the development of the minuscule.