As we had stated in the two messages we sent to everyone, this was something we had to do as part of the upgrade this weekend, sorry for the inconvenience.
Stats have gone

My first game was interrupted with two messages; one stating that I had conceded (I hadn't), and the other announcing the server connection had been lost. Neither was a problem I ever experienced under the old system. As someone once said, most schemes of improvement are folly...

Not sure what happened with the first game, but we had to reset the server, so that explains the second game.

As we had stated in the two messages we sent to everyone, this was something we had to do as part of the upgrade this weekend, sorry for the inconvenience.
I don't recall a message like this, could be me....I do recall a message to download games, because they would be lost in the upgrade.
Wow, this is cruel...

It wasn't an e-mail, we sent it out as a site message, and it went to everyone. Additionally, there was a forum thread about it last week. That was here: http://www.chess.com/forum/view/community/critical-news-important-chesscom-site-update-message .

Well, life goes on.....it feels a leg has been amputated, but, I'll start to learn how to walk again.

I'm sorry, I misread the original post. I thought he was referring to Live games history... that was intentional. The Win/Draw/Loss stats issue is one we DIDN'T expect, and we're looking into that now.
Just logged back after the weekend shutdown and my game stats have gone. It still shows the total number of games I've played but not any record of the wins, etc. Why?