Hi Michael,
I just looked through all of the builds and see that the files are being included. What platform are you using? Did you already activate the "media storage" service before upgrading? If so, those files will not automatically be updated onto your external media.
I'm using the "generic" platform (on a dedicated PC).
You guessed right - I had installed the media storage service before (in rc1), so it explains things

I removd my media storage right now, and tried to format it, but now I get an error "Formatting failed! (returned 1)".
In logs, I see:
May 5 10:12:57 storage_format_disk(): fdisk returned 1
May 5 10:12:58 storage_format_disk(): mkdosfs returned 1
The message is not really helpfull, as it doesn't tell me what gone wrong this time

Any idea?