WP 4.9.x and xili-language

This website is running with latest WP 4.9 and latest in dev version of xili-language (with new class and settings datas in termmeta).
The challenge with 4.9 is to integrate the new classes introduced gradually in the core sources in order to have an even cleaner code (especially around the taxonomy). The pace of output does not facilitate the task but poetry has no limits!
Of course, there are other popular multilingual extensions, but our choice is to continue development to further deepen our knowledge of the WordPress core.