For openSUSE Leap 15.6 Update run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head/openSUSE_Leap_15.6_Update/YaST:Head.repo
zypper refresh
zypper install yast2-online-update-configuration
For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head/openSUSE_Leap_15.6/YaST:Head.repo
zypper refresh
zypper install yast2-online-update-configuration
For openSUSE Leap 15.5 Update run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head/openSUSE_Leap_15.5_Update/YaST:Head.repo
zypper refresh
zypper install yast2-online-update-configuration
For openSUSE Leap 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head/openSUSE_Leap_15.5/YaST:Head.repo
zypper refresh
zypper install yast2-online-update-configuration