# zypper ref && zypper up
Repository 'Update repository of openSUSE Backports' is up to date.                                                           
Repository 'Non-OSS Repository' is up to date.                                                                                
Repository 'Open H.264 Codec (openSUSE Leap)' is up to date.                                                                  
Repository 'Main Repository' is up to date.                                                                                   
Repository 'Update repository with updates from SUSE Linux Enterprise 15' is up to date.                                      
Repository 'Main Update Repository' is up to date.                                                                            
Repository 'Update Repository (Non-Oss)' is up to date.                                                                       
All repositories have been refreshed.
Loading repository data...
Reading installed packages...

The following 3 package updates will NOT be installed:
 kernel-default-6.4.0-150600.23.7.3 kernel-default-extra-6.4.0-150600.23.7.3 kernel-default-optional-6.4.0-150600.23.7.3

The following 3 NEW packages are going to be installed:
 kernel-default-6.4.0-150600.21.3 kernel-default-extra-6.4.0-150600.21.3 kernel-default-optional-6.4.0-150600.21.3

The following 3 packages are going to be REMOVED:
 kernel-default-6.4.0-150600.21.2 kernel-default-extra-6.4.0-150600.21.2 kernel-default-optional-6.4.0-150600.21.2

The following package requires a system reboot:
 kernel-default-6.4.0-150600.21.3

3 new packages to install, 3 to remove.