Comment 0 for bug 1964423

"Upgrade in Upgrade Kubuntu amd64 in Jammy Daily" testcase does not describe a Kubuntu/KDE/Discover friendly process. Seems to be written for a GNOME-specific GUI.

Used instead:

1. Install all updates available for the release you want to upgrade
 sudo apt update && sudo apt -y dist-upgrade

2. Ensure the upgrade process is looking for any new LTS version

* Discover -> Settings > Software Sources
(or sudo software-properties-qt)

* Updates tab
* "Software Updates" section
 * enable "Pre-released updates"
* "Release upgrade" section > "Show new distribution releases"
 * select "Normal Releases"

* confirm it is looking for the intended version
sudo do-release-upgrade -d -c

3-4. Launch upgrade process

sudo do-release-upgrade -d