When they were later written horizontally, the letters remained in their new orientations, rotated 90° from their Tibetan prototypes.Lepcha is now written horizontally, but the changes in the direction of writing have resulted in a metamorphosis of the eight syllable-final consonants from conjuncts (ligatures) as in Tibetan to superposed diacritics.The length mark, however, is written over the initial, as well as any final consonant diacritic, and fuses with /-o/ and /-u/.A consonant cluster can be formed by adding one of the subjoiners to a base letter.Lepcha script was added to the Unicode Standard in April, 2008 with the release of version 5.1.