Hey, apologies if it was unclear, our indie plugin is updated and will package for the 4.21 and 4.22 versions of Unreal. You can download the latest package from your account page on the website !
The package you download will contain two versions of both the 4.21 and 4.22 plugin. One of the versions is editor only and the other is the new version of the plugin that allows packaging. The editor only version is shipped so people upgrading the new version have a fall back in case they experience any issues with the new version.
Hope that clears it up. If you have any issues feel free to get in touch with us on our support forums: