It turned out that a few externals where missing in the rc3 installer (jcom.clip~, jamoma~ and jamoma≈), so we try again. We’ve added those files, but apart from that there are no changes.
Grab the installer from the download page.
If you also use TapTools, be sure to install the latest beta.
If you experience any problems with this installer, please report, either in the comment field for this post or via the forums and mailing lists.