Hello there !
IBM Connections 6 is the last version running IBM Websphere, DB2 and all that stuff. We gradually go to a newer version based on micro-services and containers and where development is done in new development technologies.
Connections 6 has major improvements on the homepage with Orient Me, provides much more flexibility for Community Owners to change the layout and even create a template of the layout to reuse it for other Communities.
Connections 6 is an adoption driven update that provides user-friendly guidelines to get on board and get started !
General availability to download the update will be on friday, March 31