Downgrade packages after switching from testing to stable

[maycne.sonahoz]

[HowTo] Fix package "is newer than ..."

Difficulty: ★☆☆☆☆ What does this error mean? This is not an error but only a warning, because it expresses an “abnormal” situation which may or may not be harmful. That situation is exactly as described by the message: the package installed on your system is a newer version than the one in the repositories. How did that happen? There are two major cases: You switched from the stable branch to another, in which newer versions of packages are tested. By updating from that branch, you can ge…