Description of problem:

 Leapp upgrade using Red Hat Satellite 6.15.

Leapp upgrade from RHEL 8.10 to RHEL 9.6 has been completed successfully but there is any error message about RHEL 8.10 release set 'This system has release set to 8.10 and it receives updates only for this release.'

[root@troubleshooting ~]# cat /etc/redhat-release
Red Hat Enterprise Linux release 9.6 (Plow)

[root@troubleshooting ~]# dnf repolist
warning: Signature not supported. Hash algorithm SHA1 not available.
Updating Subscription Management repositories.

This system has release set to 8.10 and it receives updates only for this release.

repo id repo name
codeready-builder-for-rhel-9-x86_64-rpms Red Hat CodeReady Linux Builder for RHEL 9 x86_64 (RPMs)
rhel-9-for-x86_64-appstream-rpms Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs)
rhel-9-for-x86_64-baseos-rpms Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs)

[root@troubleshooting ~]$ cat installed-rpms | grep leapp
leapp-0.16.0-2.el8.noarch Thu May 1 17:46:08 2025
leapp-deps-0.16.0-2.el8.noarch Thu May 1 17:46:08 2025
leapp-upgrade-el8toel9-0.19.0-4.el8_9.noarch Thu May 15 10:56:20 2025
leapp-upgrade-el8toel9-deps-0.19.0-4.el8_9.noarch Thu May 15 10:56:19 2025
python3-leapp-0.16.0-2.el8.noarch Thu May 1 17:46:08 2025

$ cat installed-rpms | grep satellite
ansible-collection-redhat-satellite-4.0.0-2.el8sat.noarch Mon Aug 26 22:03:10 2024
ansible-collection-redhat-satellite_operations-2.1.0-1.el8sat.noarch Tue Aug 20 22:27:58 2024
rubygem-foreman_theme_satellite-13.2.5-1.el8sat.noarch Mon Aug 26 22:01:41 2024
satellite-6.15.3-1.el8sat.noarch Mon Aug 26 22:01:55 2024
satellite-cli-6.15.3-1.el8sat.noarch Mon Aug 26 22:01:12 2024
satellite-common-6.15.3-1.el8sat.noarch Mon Aug 26 22:01:55 2024
satellite-installer-6.15.0.2-1.el8sat.noarch Mon Aug 26 22:01:11 2024
satellite-lifecycle-6.15.0-1.noarch Mon Aug 26 22:01:07 2024
satellite-maintain-0.0.2-1.el8sat.noarch Tue Aug 20 22:27:58 2024

This issue not observed when running leapp upgrade on a system registered to CDN.