As always the upgrade path from the community version will be added as a hotfix shortly after the final release annoucement is published.
You can safely install the latest hotfix. It will enable the upgrade path, but upgrading is not required so you can do it whenever you're ready.The main reason we do this is because we know some people appreciate waiting things out, managing their on software updates in existing installs and for us we could always come in later and push more minor releases if required (which have a preferred path in the firmware system).