I first would do a complete backup.
Then you could do like in this post.
If you use restdocs: it has moved from “misc” to “UI” section (addons.cfg). You better uninstall it before upgrading.
If you use habpanel: you have to change habpanel.config, like in this post.
If you use zwave: you have to add a serialport in system environment (EXTRA_JAVA_OPTS), like in this post.