Version 2.4.30037:

The Jing team has been hard at work adding three more improvements to Jing--proxy support, SFTP, and audio device selection. The first two are targeted at our corporate and education users. If you've ever tried to use Jing behind a proxy...well, notsomuch huh? We now try to autodetect the proxy settings and allow for manual settings with authenticated proxy support.
We hope everyone appreciates the new way you can select your audio device from within Jing. No more messing around with the default audio input device. When you install this update, Jing will prompt you to pick which microphone you want to use when you make your next video. Jing will keep using the same device unless you change it or your available audio devices change.