Hello ,
Thank you for posting your question in the community and in order to get the latest version of Twinmotion you can download/install it from the Epic Games Launcher > Twinmotion Tab.
Hope this helps and if you run into an issue installing it you can contact us here and use the Installation Issues form:
https://twinmotionhelp.epicgames.com/s/case-community-page
Kind regards,
Vincent B.