Microsoft has begun pushing out Windows 10 Mobile build 10586.218 for all Insiders on the Release Preview Ring as well as all retail devices (phones sold with Windows 10 Mobile, non-carrier). The same update is also going out to all PC owners as well due to the shared core of Windows 10.
Here is what is new with this release for those on phone as posted in the community forums:
Full story from the WindowsCentral blog...