We have just updated our Jitsi server. Most changes are under the hood and Jitsi is now running on a more capable machine, that should improve quality with more participants in a room and on the server overall. 

User visiable changes are:

• The video feed is now off by default when joining and needs to be explicitly switched on.
• When first connecting to a room a Display Name has to be chosen so that not everybody is named "Fellow Jitster". The name can be chosen and changed freely.
• The new Jitsi version allows to show both a shared desktop and the speaker sharing it as well as share the computers audio.