Kubuntu never offers to upgrade versions

https://help.ubuntu.com/community/GroovyUpgrades/Kubuntu
Information you probably already know.
https://help.ubuntu.com/community/Repositories/Ubuntu
In the updates tab of Repositories: Notify me of a new Ubuntu version: Drop down box has: LTS or any newer version.
That is where you change the option for any newer version to have notifications for an upgrade.
https://help.ubuntu.com/community/Repositories/Kubuntu
For Kubuntu it is the updates tab similar to what is above.

Already have all that stuff set, but the system's still not saying there's a new version available.
"any newer version" is not an option in Kubuntu, the terminology here is "Normal Releases," but I think the intent is the same. The only other options are LTS, or Never.

If you boot to the ISO of Groovy you will be able to upgrade that way. I wouldn't suggest jumping from an LTS release to a non-LTS release but it's totally possible.

For diagnostic purposes, what is the output of the commands

uname -a
lsb_release -crid
cat /etc/update-manager/release-upgrades

lance@Lance-Desktop:~$ uname -a
Linux Lance-Desktop 5.8.0-17.2-liquorix-amd64 #1 ZEN SMP PREEMPT liquorix 5.8-17ubuntu1~focal (2020-10-31) x86_64 x86_64 x86_64 GNU/Linux
lance@Lance-Desktop:~$ lsb_release -crid
Distributor ID: Ubuntu
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
lance@Lance-Desktop:~$ cat /etc/update-manager/release-upgrades
# Default behavior for the release upgrader.

[DEFAULT]
# Default prompting and upgrade behavior, valid options:
#
# never - Never check for, or allow upgrading to, a new release.
# normal - Check to see if a new release is available. If more than one new
# release is found, the release upgrader will attempt to upgrade to
# the supported release that immediately succeeds the
# currently-running release.
# lts - Check to see if a new LTS release is available. The upgrader
# will attempt to upgrade to the first LTS release available after
# the currently-running one. Note that if this option is used and
# the currently-running release is not itself an LTS release the
# upgrader will assume prompt was meant to be normal.
Prompt=normal
l

I've got Kubuntu on 3 machines, none are offering to upgrade:

* My everyday work desktop, which has lots of added programs
* An old laptop, that's nearly stock Kubuntu.
* A dual booting low-end gaming box, which mostly runs Windows.

Not one of these has ever mentioned that 20.10 has released.

I suspect that the upgrade-notifier in Kubuntu has been broken for a while. If anyone wants to test this; install Kubuntu 20.04, set the notification to normal releases, and see if you ever get a notification.

https://help.ubuntu.com/community/GroovyUpgrades/Kubuntu

Hmmm that's very interesting, Bernard Stafford (bernard010). With that long set of instructions being in the official documentation, I have to wonder if that's Kubuntu's way of saying "Upgrade notifications won't happen, you're not going to get offered a convenient one-click way to begin the upgrade process, like you are with a Gnome-based Ubuntu." If that's the case, I'll consider this a defect, and file a bug-report; because years ago, notification worked. Thanks for the hint!