Apple, which only introduced and made available its own translation service in June 2020, had only limited language support to date. Unfortunately, one of the languages that the application does not support was Turkish. The company finally shared the expected news at the WWDC 2022 event that was held recently.
Apple at the event Apple Translate announced that Thai, Vietnamese, Polish, Indonesian, Dutch and Turkish language support will be coming to the application. While these language supports are not seen in operating system beta versions, new languages are slowly being released to all users starting today.
For beta users only:

As of today, Apple Translation has added support for the above languages, along with Turkish. Languages that will be available with iOS 16, iPadOS 16, and macOS Ventura operating systems, for beta users open for use. We’ll see over time how accurate Apple Translate will be compared to Google Translate, its closest competitor.
The release date of the iOS 16 operating system with Turkish language support not yet announced. However, the OS is expected to be released by the end of this year, as always. The public beta version of the operating system is reportedly set to be released in July 2022.