Has anyone heard if Yammer will allow for authorized guests to be members of internal communities if Native Mode is enabled? We allow for guest users to be members of Teams and I would assume that the same control/functionality is coming.
Native Mode impacts current External Groups (these get converted to internal connected groups) and Network-level Guests (these are removed completely.) External Networks aren't updated by Native Mode, so continue to function as before. If your organization's External Group usage is limited to only participation in other networks then there isn't an impact either because the External Group's are in that other network which would not have been converted to Native Mode yet. A careful analysis of external collaboration usage is therefore warranted, if that's where you get most value to today.
There is no connection between Native Mode and the new Yammer preview. You can be in any mode and be able to check out the preview. This has been a question others have asked, so i just wanted to make that clear for future readers.