First, minimal test ISO is uploaded for the September or October stable ISO release.

Almost too many changes to mention, which all need testing.....
Quite experimental (and might not make it on the final ISO) is the addition of ZFS as a filesystem option (something that has been wanted to be default in KaOS since 2013). Installs work, but just for system-boot, see the known issues below. The erase option for automated partitioning gives you the option to use ZFS.
Another change is the move to Dracut (away from Mkinitcpio) for kernel image creation.
Then the ISO also ships Plasma 5.26 BETA and a ton of changes to the installer Calamares, visually the most obvious is the new slideshow/

As always, early test ISOs are minimal, very few apps, just a web-browser, file manager, text editor, GUI package manager. The non-free Nvidia drivers are included since they are a big part of what needs testing.

Plan is to have Frameworks 5.98.0, KDE Applications 22.08.1, Plasma 5.26 (BETA) and Linux 5.19.xx on the final ISO.

The ISO is using packages from the build and kde-next repo, but those repo's is not enabled, so if you decide to install, make sure to add the kde-next & build repo to your pacman.conf.

Debug packages for Calamares are part of all ISOs, run Calamares with gdb if you encounter errors.
provide the installation log, if you encounter any issue at all

You can start Calamares from the Welcome app, or run it with:

sudo calamares -d

The install log will be created in the home directory of the Live user, see ~/installation.log. It is available after the install in the target system in /var/log/installation.log
If run from cli, make sure to pastebin the full output, since no installation.log will be copied then, though that log is more complete.

https://sourceforge.net/projects/kaos-test/files/iso/KaOS-2022.09.22-x86_64.iso
SHA256Sum:

29f1b44c6cbe46f64f3082819f4d13c8d2abe0aee8e702052961de42a99bc6f2  KaOS-2022.09.22-x86_64.iso

On this ISO you will find:
Linux 5.19.10
systemd 251.4
gcc 11.3.0
Qt 5.15.6+
Frameworks 5.98.0
Plasma 5.25.90
KDE Applications 22.08.1
Calamares 3.3 Beta
Octopi 0.13.0 with sysinfo & cachecleaner tool

Known issues:

ZFS install can only be done in UEFI mode & with systemd-boot as bootloader. On first boot with ZFS, edit the kernel line by typing e and then removing the second root=uuid=....., leave root=ZFS=ROOT/....`
The bottom progress-bar in Calamares reacts to mouse clicks & opens a virtualkeyboard (narrow)