You will find the release notes for IGEL Cloud Gateway 2.01.100 both as a text file next to the installation programs on our download server and in the Knowledge Base under Notes for Release 2.01.100.
ICG Server
Added support for Shadowing and Secure Shadowing from UMS (UMS version 6.02.110 or higher and IGEL OS firmware 11.02.100 or higher required)
ICG Installer
The remote installer supports both Python 2 and Python 3.