The character ਲ਼ /ɭ/, the only character not representing a fricative consonant, was only recently added to the Gurmukhī alphabet. It was not a part of the traditional orthography, as the distinctive phonological difference between /l/ and /ɭ/, while both native sounds, was not reflected in the script, and its usage is currently not universal. Previous usage of an older glyph to represent this sound, has been attested. Other characters, like the similarly recent [ਕ਼ //, are also on rare occasion used unofficially, chiefly for transliterating old writings in Persian and Urdu, the knowledge of which is less relevant in modern times.