An update is available for the “emby” plugin.

Navigate to Jails, then the carat off to the far right, then the > SHELL.

There will be a menu, and there should be an Upgrade selection in there.

But when you attempt to update:

• Updating Plugin
• Error: Major ABI change detected, please run 'upgrade' instead.

iocage upgrade emby -r 12.1-RELEASE