I just upgraded from 1.37 to 1.39d a couple of weeks ago. When using 1.37, I had "show available stock level in cart when less than order" set to true under Configuration > Stock. It always worked great and customers could see in the shopping cart if they tried to order more than was available and many would order exactly what I had on hand. So, this setting was particularly useful for me.

I just realized that using 1.39d, it no longer lists the available stock in the shopping cart when items are back-ordered, even though "show available stock in cart when less than order" is correctly set in configuration. Can someone tell me if I am missing something?