https://wpml.org/faq/how-to-install-beta-and-development-versions-of-wpml/
How can I install beta versions of WPML? - WPML
Aug 29, 2023 - You can install beta versions of WPML from the backend of your website. To do this, go to the Plugins page and click on the Commercial tab. From there,
beta versionsinstallwpml