As a Magnolia user i want to know how I must upgrade my custom Magnolia module regarding Magnolia 5.6

The originally proposed topic by ahietala was "How to upgrade your module to Vaadin 8" which most probably will be the major subject. ilgun can provide infos to the doc team concerning the required changes regarding Vaadin 8

Other possible topics for custom module upgrades:

• BOM (pom) files
• ...

Doc tasks

• a section in the Release notes page
• a distinct "How-to guide" page which goes more into detail