This is not considered *officially* "supported" yet, due to the upgrade path still being poorly tested, but you may find it works well enough for your purposes. If it breaks, you get to keep both pieces, and superglue is available in the issue queue.
Feedback is wanted on the ability of this release to convert all your old installs to the latest format, as well as reporting of any general bugs you find.
MAKE A BACKUP BEFORE ATTEMPTING UPGRADE!