The Sabres unveiled their new alternate jerseys this afternoon. I saw that the leaked design (seen here) was confirmed when, during the inter-squad game played before the unveiling, some players were wearing the new socks.
After the game the new jersey was released.
Craig Rivet (left), Ryan Miller (right)
If you look closely you can also see that Miller is wearing the new style RBK goalie pads for this season.
Here is the difference between the two logos.
Also noticed that this season, on the boards where the markings are for the blueline and centre ice line, the old RBK logo will be replaced by the new one.