Version 2.25 - client GUI language

On client version 2.25.19 (upgrade from 2.4.11) there is only English language.
How can I switch to another language (Polish). I see that file ‘’ in folder PL is dated on 2022-07-10, so it is from version 2.5.

The same problem here. Did you find a solution?

I join the question, is there a solution yet?

Same here. Client 2.5.21 - switches itself from german (before upgrade from 2.4) to english.

Same here…

Is it possible to set the Windows Client language to ITALIAN?