Microsoft Bing has apparently replaced the magnifying glass button in the search bar on the landing page of search results with the "Search" button. It's a small but interesting change. Below are the before and after the screenshots.
This is what the top search bar looked like in Microsoft Bing a week ago (click the image to enlarge):
This is how it looks today (click on the image to enlarge):
Frank Sandtmann, who sent this to me, said Microsoft was changing the "search symbol / word with inverted colors" ("search" – but also discovered a version with a magnifying glass with inverted colors to make it stand out better). He added that Microsoft has "A new Tools" menu item that, when clicked, shows the number of results.
Small change, but remarkable.
Forum discussion on Twitter.