Re: BUG #18207: Turkiye LC Setting Error - Mailing list pgsql-bugs

On Mon, Nov 20, 2023 at 10:35 AM PG Bug reporting form
<noreply@postgresql.org> wrote:
> In the KB5031455 update package released for Microsoft Windows 11 on October
> 31, 2023, "Republic of Turkey" changed its name to "Republic of Türkiye".
> For this reason, Postgresql databases previously installed as
> "Turkish_Turkey.1254" do not work.  Because this locale turns into a
> situation similar to "Turkish_Týrkiye".  The error is: "postgresql.conf
> contains errors". We are currently running this update by uninstalling it.
> How can we solve it?

This seems to be the main thread for this problem:

https://www.postgresql.org/message-id/flat/18196-b10f93dfbde3d7db%40postgresql.org