Yaña imlâ alphabet

Yaña imlâ was a modified Arabic script that was in use for the Tatar language between 1920 and 1927. The orthographical reform modified İske imlâ, including abolishing homophonic letters and adding letters for short vowels e, ı, ö, o. Yaña imlâ made use of a "low alef" to indicate vowel harmony.
There were some projects that were to simplify Yaña imlâ too. The unique separated Arabic was invented.
As early as in 1924 the first projects of Latin script were introduced and in 1928 the government switched to the Latin Yañalif alphabet.

Vowels

10 vowels are defined. These occur in pairs, front and back vowels.
Similar to other Turkic languages, Tatar has vowel harmony rules. Tatar orthography has one-dimensional vowel harmony: frontness versus backness. Tatar also has vowel roundedness harmony, but it is not reflected in the orthography.

Schwa

The vowel Ы ы / Э э is not written if at the beginning or middle of a word and if the resulting consonant cluster is not ambiguous, as in traditional İske imlâ. Hence,
تاتار تلىُ татар теле instead of تاتار تىُلىُ,
برنچىُ беренче instead of بىُرىُنچىُ, and
ئش эш instead of ئىُش.

Word-final devoicing

Words that historically end in voiced stops keep their voiced spelling, as in traditional İske imlâ. Hence,
ئازاد азат instead of ئازات, and
ࢭبولب булып instead of ࢭبولپ.

Vowel harmony

Low alef has a unique role in Tatar, a role not seen in other Arabic scripts. Appearing as a modifier before a word, it indicates that the vowels in the word will be the back vowels:Ы ы Ый ый О о У у
The low alef symbolizes that the vowels of the word are articulated in the same part of the mouth as an alef : at the back of the mouth.
The hamza plays a similar but inverse role in Kazakh Arabic alphabet, indicating that a word has front vowels.
There are instances where back-vowel words do not need low alef.
First are words that contain the vowel ئا / ا / ـا А а. This vowel is a back vowel, and the corresponding front vowel ئە / ـە / ە Ә ә is written with a different letter altogether. It is an unambiguous conclusion that any word containing ئا / ا / ـا А а is a back-vowel word, while a word containing ئە / ـە / ە Ә ә is a front-vowel word.
For example, the word йорт is written with low alef, as ࢭیۇرت, while йортлар is written as یۇرتلار.
The second exception is words that contain the following consonants:Г г Гъ гъ / Ғ ғ К к Къ къ / Ҡ ҡ
Under the rules of Tatar phonology, the consonants Г г and К к can only be accompanied by front vowels. Thus, there won't be any words containing these consonants that would need low alef. In contrast, the consonants Гъ гъ / Ғ ғ and Къ къ / Ҡ ҡ can only be accompanied by back vowels. This means that they themselves act as indicators that vowels in a word are back vowels, thus eliminating a need for low alef. For example, the word җылы, is written as ࢭجلىُ, whereas, a derived word, such as җылылык, is written as جللق.
Pursuant to these rules, suffixes are formed in pairs too. For example, words with back vowels take the suffixes -лык ~ -дык ~ -тык, and words with front vowels take the suffixes -лек ~ -дек ~ -тек.

Sample text

Article 1 of the Universal Declaration of Human Rights:

Yaña imlâ	İske imlâ	Cyrillic	Latin	English translation
	بارلق كشیلرده آزاد هم اوز آبرويلری هم حقوقلری یاغیندن تڭ بولوب طوەلر. آلرغە عقل هم وجدان بیرلگن هم بر-برسینە قاراتە طوغنلرچه مناسبتدە بولورغە تیوشلر	Барлык кешеләр дә азат һәм үз абруйлары һәм хокуклары ягыннан тиң булып туалар. Аларга акыл һәм вөҗдан бирелгән һәм бер-берсенә карата туганнарча мөнасәбәттә булырга тиешләр.	Barlıq keşelär dä azat häm üz abruyları häm xoquqları yağınnan tiñ bulıp tualar. Alarğa aqıl häm wöcdan birelgän häm ber-bersenä qarata tuğannarça mönasäbättä bulırğa tieşlär.	All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood.