Windows Phone 8.1 Update 2 apparently part of Windows 10 preview release for some phones

[Windows Central]

Alongside today's Windows 10 preview for phones release, it seems as though some devices are actually receiving Windows Phone 8.1 Update 2. The Windows Central tip box is getting filled with reports from community members who have gone through the process to install Windows 10 and ended up with Update 2 arriving first.
While we're still devoid of any official word from Microsoft, Windows 10 guru, Gabe Aul, seems to have indicated that this is the case.

Full story from the WindowsCentral blog...

 

[EricMarsi]

anyone know if the 928 does this, if so Im going to upgrade then disable updates and stay on 8.2