If you are impatient and do not want to wait for the Xobni update process to kick in to update your system to the new version, which includes (optional) LinkedIn integration, you can download the update manually. It also fixes many little performance problems, once again.
You can download the upgrade program here.
You can read the detailed list of changes in this version here.
Unless you downloaded Xobni recently (within the past week or two), you are most likely running the older builds.