Crimean Tatar is written in both the Latin and Cyrillic scripts. Before 1928, the Perso-Arabic script was the main orthography.
Before the official introduction of the Common Turkic-based Latin alphabet by the Verkhovna Rada of Crimea in the 1990s, the Cyrillic alphabet was the main orthography. After the 2014 Russian annexation of Crimea, the Russian government required solely the use of the Cyrillic script. In 2021, the Ukrainian government began the transition to the Latin script.
I, or ı, called dotless i, is a letter used in the Latin-script alphabets of Azerbaijani, Crimean Tatar, Gagauz, Kazakh, Tatar and Turkish. It commonly represents the close back unrounded vowel /ɯ/, except in Kazakh where it represents the near-close front unrounded vowel /ɪ/. All of the languages it is used in also use its dotted counterpart İ while not using the basic Latin letter I.
In scholarly writing on Turkic languages, ï is sometimes used for /ɯ/.
View the full Wikipedia page for Dotless Iİ, or i, called dotted I or i-dot, is a letter used in the Latin-script alphabets of Azerbaijani, Crimean Tatar, Gagauz, Kazakh, Tatar, and Turkish. It commonly represents the close front unrounded vowel /i/ except in Kazakh in which it additionally represents the voiced palatal approximant /j/ and the diphthongs /ɪj/ and /əj/. All languages that use it also use its dotless counterpart I, but not the basic Latin letter I.
View the full Wikipedia page for İ