As the message states, as well as the post before that: it is a test version with just a fix for faster channel switching...for you to test if it works properly. If you test it, your feedback will help to decide if the fix can be included in the regular builds.
Thank you,
I would like to test these builds but I have a lot of addons and settings made. How can I back up them and restore in this build? Sorry for the offtopic and nob question.