Skype has released Skype 3.8 for Windows, and it has better audio, thanks to some improvements in the audio engine. Hopefully it will translate into better call quality and fewer dropouts. The best and most useful feature of this new release: If you change your headset, headphones or microphone, there’s no need to mess around with the sound settings — Skype adjusts everything automatically. Skype folks tell us that they have made a “number of video-related bug fixes” and added their own “UPnP implementation.”