Learn Turkish: Onların aksine, biz yeni sürüm için optimizasyon yapıyoruz. - Unlike them, we are doing optimization for the new version.

The word aksine functions like a possessed noun in a compound. Because it acts like 'the contrary of...', the pronoun onlar (they) needs the genitive suffix -ın to link them together, making it literally 'to their contrary'.

How is the word aksine formed?

It is built from the noun root akis (the opposite or contrary). When we add the 3rd person possessive suffix -i (its opposite), the 'i' in the root drops out to make aks-i. Then we add the buffer letter -n- and the dative suffix -e (to). So, it literally translates as 'to its opposite'.

Could we use tersine instead of aksine in this sentence?

Yes, absolutely. You could say Onların tersine, which means exactly the same thing. Both words require the preceding pronoun or specific noun to be in the genitive case.

Since the verb yapıyoruz already means 'we are doing', why is the pronoun biz included?

While subject pronouns are usually dropped in Turkish, keeping biz (we) here creates a strong stylistic contrast with Onların (them) at the start of the sentence. It emphasizes: 'Unlike them, we are doing this.'

What is the origin of the word sürüm (version)?