Thanks, didn't know that. Good news, makes things a bit easier.

May as well make it even easier and set it up with the new style file layout, this includes everything and works without problems. Move the sources.list to a backup to stop apt from complaining about duplicates.

root@9600k:~# cat /etc/apt/sources.list.d/devuan.sources 
# Devuan 6 excalibur
## The new style method of using repositories to install software.
## This /etc/apt/sources.list.d/devuan.sources is new style and location file
## The /etc/apt/old.style.sources.list contains the same as this.
## https://linuxconfig.org/ubuntus-repository-configuration-ubuntu-sources-have-moved-to-etc-apt-sources-list-d-ubuntu-sources

## Normal excalibur sources
Types: deb
URIs: http://gnlug.org/pub/devuan/merged 
Suites: excalibur excalibur-backports excalibur-proposed-updates  excalibur-updates
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

## excalibur security sources
Types: deb
URIs: http://gnlug.org/pub/devuan/merged
Suites: excalibur-security
Components: main non-free contrib non-free-firmware
Enabled: yes
Signed-By: /usr/share/keyrings/devuan-archive-keyring.gpg
Architectures: amd64

You can uncomment excalibur-security and excalibur-updates. They've been active since around when trixie was released.

Thanks, didn't know that. Good news, makes things a bit easier.

So I change my sources.list to:

deb http://deb.devuan.org/merged excalibur main contrib non-free non-free-firmware
#deb http://deb.devuan.org/merged excalibur-security main contrib non-free non-free-firmware
#deb http://deb.devuan.org/merged excalibur-updates main contrib non-free non-free-firmware

and upon release I uncomment the 2 lines and do another:  ?

apt-get update && apt-get upgrade

I tend to upgrade to excalibur. So I du just the usual?

Not quite, there is one more thing to do and some remarks.
Before changing the sources to excalibur, you need to run the usrmerge app (I use apt instead of apt-get, I like the progress bar). If you don't do that you get an error message and the upgrade is stalled.

# apt install usrmerge

Then, as long as Excalibur still is testing, the sources.list must contain just one line:

deb http://deb.devuan.org/merged/ excalibur main contrib non-free non-free-firmware

And the usual precautions do apply: make a backup and remove/deactivate all foreign repos from your sources.list.

Yes.
A non-zero chance of there being extra obstacles is to be expected with a testing Suite.
ie: Maintained but Not Released status

+1

Best,

A.

apt-get update && apt-get upgrade

then replace daedalus with excalibur in the sources.list and then (I normally run that with no user logged in as root from the first text console)

apt-get update
apt-get upgrade
apt-get dist-upgrade

Or are there any extra obstacles with excalibur?

Backports is the safe route, Excalibur means a slightly higher risk of ooups.

I have my new system momentarily running. It might need a newer kernel. Hardware is announced to run with 6.8. and higher.

So I was thinking is there a newer kerne (6.1. is currently provided, if I'm not mistaken) for daedalus?
Or do I upgrade to excalibur already, since it might be become stable soon enough? (bookworm to daedalus was ~2 months)