Change WordPress Username maxmimum length

Question

Would anyone please advice on how to set a hook to be applied to function.php

So that I can change the default WordPress Username Limit (40 Charachters).

Also I need to allow Arabic Charachters in Username to allow using Full name as Username

I found 2 plugin that might help, but they are not working properly and outdated:

https://wordpress.org/plugins/restrict-usernames-emails-characters/

https://wordpress.org/plugins/wordpress-special-characters-in-usernames/

Please help This is urgent Thank you in advance

Answer 1

In WordPress 6.7, usernames are limited to 60 characters, and this value is hard-coded with no filter (source), so no proper way to change it.

Allowing more than 60 characters would mean changing core, which is bad practice.

Answer 2

I found the solution,

Thanks to this plugin https://wordpress.org/plugins/restrict-usernames-emails-characters/

But very important to select in options:

Solved the problem of not being able to register with certain languages