*Dependency issues* + If you experience any dependency problems, you have to solve them manually. These are often caused by packages being retired in the newer release, but not properly obsoleted. Often it is enough to remove several problematic package(s). You may find that a package you care about depends on a package that must be removed for the upgrade to proceed. Usually you will be able to reinstall the important package once the upgrade is complete.
You may find that a package you care about depends on a package that must be removed for the upgrade to proceed. Usually you will be able to reinstall the important package once the upgrade is complete.