Halo Waypoint (Beta?) Out?

I'm very confused by this. I just scrolled through the Spotlight randomly, and found a link to download Halo Waypoint. According to the Googling I did after finding this link, it's not supposed to come out until November 5. And, I don't know about anyone else, but I haven't seen or heard any word of a beta coming out. So was this a mishap by Microsoft? Or am I missing something?

I have it downloaded and am playing it now. I assume some other people have found this as well, so I am just curious.

It was released for the people who got on the new update preview program

I'm in the preview program myself, but I don't see it anywhere.

Just saw on major nelsons twitter that its not available in Canada yet...

I saw it. Really to bad I don't play halo anymore. Looks kinda cool.

yeah, just read it on eurogamer. just for people who got to experience the august update earlyi think. anyway november 5th isnt that far away

what are you guys talking about?orb_03_2006