You will find the release notes for the IGEL Universal Management Suite 6.06.100 both as a text file in the same folder as the installation programs on our download server and in the Knowledge Base.
Certificate Management for the Web Port (default: 8443)
Automatic Synchronization of Universal Firmware Updates
Universal Firmware Updates are now automatically synchronized between the servers in an HA environment if the synchronization is enabled under UMS Administration > Global Configuration > Universal Firmware Update and a WebDAV directory is set as the target path for the download. For details, see How to Detect Which Files Are Synchronized Automatically.