Here’s the download link to RC 1:
RC 1 should be fully compatible with WordPress 3.1.x through 3.3.
It is strongly advised that you backup the current four Connections tables in the db before the upgrade because the db structure has been changed significantly.
After the upgrade is completed, validate the data for as many entries as you feel appropriate. The suggested method is, while on the Connections : Manage admin page, click “Show Details” for an entry and then click “Edit” to make sure that data is exactly as expected on both the “Show Details” and the “Edit” page. Why? The data on the “Edit” page is pulled from the new db tables whereas the data shown on the Manage page and the front end is pulled from a cache which stored with the entry specific details. These two sources are kept in sync when edits are made. The reason for this data structure is so that a large amount of entries can be displayed without bombarding the db with queries.
At this time, there are no known bugs, but if you find one, please submit it here: