Is there anything special to consider while upgrading or is it the same procedure as with the last version?

Update procedure:

(1) Open the 'Update System' app and perform a full update. Keep an eye out for any package conflicts. *IF YOU HAVE PACKAGE CONFLICTS HERE YOU MUST RESOLVE THEM BEFORE UPDATING.

(2) Make sure to set any .rpmnew repo files as normal repo files. For example run: ls /etc/yum.repos.d/ -IF- you see something like: nobara.repo nobara.repo.rpmnew You need to replace nobara.repo with the rpmnew file like this: sudo mv /etc/yum.repos.d/nobara.repo.rpmnew /etc/yum.repos.d/nobara.repo again, if you DON'T see an rpmnew file, you don't need to do anything here, move to step 3.

(3) The remainder of the process is the same as fedora: sudo dnf install dnf-plugin-system-upgrade sudo dnf system-upgrade download --releasever=38 sudo dnf system-upgrade