The Republic of Türkiye changed its official name from The Republic of Turkey on 26 May 2022 in a request submitted to the Secretary-General by the country's Minister of Foreign Affairs.
Thanks for raising this, but I'm going to wait until this new name is embraced by more of the major institutions before making the change here. e.g. I notice the BBC still use "Turkey".
The Republic of Türkiye changed its official name from The Republic of Turkey on 26 May 2022 in a request submitted to the Secretary-General by the country's Minister of Foreign Affairs.
https://www.un.org/en/about-us/member-states/turkiye