It looks like Bing is testing a new logo, one with curves. The current logo has sharp edges and corners but the new one gives the whole logo softer edges, more curves and maybe a friendly look.
The new Bing logo keeps the immediately recognisable lowercase ‘b’, but loses the sharp edges in favour of a much curvier design. There are also some very subtle, gorgeous new gradients in there too. While it seems like a simple change, the effect is quite profound, with the old, quite harsh design replaced with a sleek, classy new look. (said creativebloq.com)
At the year of 2016 Jan 19 the Bing has changed their logo and you can see it through the image below.
The new Bing logo doesn’t appear for everyone just yet, and there’s no news on when – or indeed if – it will be fully operational. The Thurrott website suggests the company may be A/B testing the new logo with a limited number of users, so whether it will make it to the masses remains to be seen. If it does make the cut, our guess it will be rolled out to everyone in the coming weeks and months.