First post: "This means that both the stable and beta channels are fully in sync now; feature- and functionality-wise."
The Beta and Stable are the same (at this moment)!
My XCI files are splitted with XCI Cutter, and they are working with the normal SxOs... but Not with the SX Installer
Edit: splitted nsp files working, After checking the archive bit in Windows again ;)
Where did you get this false information from?
Or are you just a TX hater who talks everything down?
The backup is also made with SXOS before Horizon loads, like with hekate!
You have a "bootloader" screen on SXOS and the "Horizon" software (Album) - two different things - the backup is made...