You will find the release notes for IGEL Universal Management Suite 6.10.100 both as a text file in the same folder as the installation programs on our download server and in the Knowledge Base.
In the IGEL UMS High Availability installations, messages between the UMS Servers now use the database bridge. Cross-subnet communication for UMS HA installations without UMS Load Balancers is now possible. See Installing an IGEL UMS Server.