Do you run Debian? Have you ever gotten annoyed at how Debian Stable always seems to be out of date?
I will show you a way that you can have apt mix-and-match between Stable, Testing, and Unstable sources.
This will allow you to run a mostly-Stable system, but also track the latest and greatest of those packages that you are most keenly interested in.
Why do this? Stable is covered by the Security Team. Testing and Unstable are not. For non-critical services, like perhaps your mailer, or your window manager, this is not so important, and the newest versions may have additional features that are desired. It is these packages that are perfect for pinning to a version, other than Stable.
Plus valable pour un Desktop qu'un serveur