I just received the replacement for one of the two defective Bay II B+W filters that I purchased from B&H (they neglected to send me a replacement for the second one).

It is exactly the same as the first one. The glass is only glued into the mount. No retaining ring at all. Apparently Schneider is not constructing these things with retaining rings any more. If I didn't have the box that it came in I wouldn't know which brand it was or what kind of filter it is. I'm going to keep this one, and hope the glass doesn't fall out, but I'm very disappointed and I'm not going to be buying any more.