How to get The New Preview Update,By chinese xbox one.

Hi there,

Only friends that are part of the Xbox One preview program can invite you to it. Be aware that an invite will not guarantee you to be accepted to the preview program.

Here is a link to the only way to get out of the preview program:

https://support.xbox.com/en-US/xbox-one/console/how-to-leave-xbox-one-update-preview-program

How does one get into the Preview program to get the update?

We are not in a preview wave at the moment It looks like the next preview will be issued to a limited number of preview members over the next day or so.

Unfortunately no one knows how long before your console will get this update, One thing to keep and eye out for is you will gain a new tab at the top of the forums called "Xbox Early Access" once your enrollment is completed.

Hi there,

by opting-in to the new experience, you will still be a part of the preview program as it is still a 'preview'. There are now two groups in the program - "existing" (as in the current experience) and "new" (which is the new preview that is slowly rolling
out to those who have opted in).

Q: I’ve opted in to the New Xbox One Experience Preview, when will I get the new update?

A: This update will roll out in waves, starting with a small number of users who have strong participation in the program, and expanding to larger numbers of users over time. Until then, your console registration will show as EnrollPending. This is normal,
and will change once you’ve been selected for the New Xbox One Experience Preview update.

Q: Who do you decide to give the Preview updates to first?

A: We are taking many things into consideration, but we are starting with a small number of users who have strong participation in the program, and expanding to larger numbers of users over time.

Q: Can I opt-out of the New Xbox One Experience Preview?

A: Yes. During the Preview period, there are two ways you can opt-out of receiving New Xbox One Experience Preview updates.

1. Prior to receiving the New Xbox One Experience Update Preview, take no action – we’ll default you to remaining on the Existing Xbox One Experience preview. You’ll still get the benefits of Preview, like Backward Compatibility, but you’ll stay on the current
   Xbox One update that’s available to the public. Later, just before the general release of the New Xbox One Experience, we’ll update your console to the latest Preview build, so you’ll still get it a little early.
   
2. In the Registration area of the Xbox Preview Dashboard, you can choose Remove to remove your console from the program entirely. Your console’s removal will be processed within 72 hours.
   
   NOTE: If you choose this option after taking the New Xbox One Experience Preview update, your console will go back to the current general release of the Xbox One software, but this will restore factory defaults on your console, and erase all
   locally stored accounts, apps, games, saved games, settings, and home Xbox associations. We encourage all users to download/copy your favorite games to External Hard disks to ensure a quick recovery option in the event of data loss from a removal.
   

For the full FAQ, please visit this link: http://forums.xbox.com/xbox_early_access/update_preview/update_preview_forums/nxoe_1509/f/5541/t/2038522.aspx