Microsoft last week released Update Rollup 5 for SBS 2008. If you have default settings for your SBS 2008 patch management then it will automatically download it for installation on your SBS 2008 server as per my screenshot below. Installation for me did not require a reboot and took only a few minutes.
The list of things fixed by this is documented here
One of the key things this patch now does is to better manage the log files generated by WSUS 3.0 on SBS 2008. It contains as task that runs daily and clears out any log file older than 30 days.