"Nobody ever thinks to mention .rpmnew and .rpmsave extensions
to new users of Fedora or Red Hat derivatives. Instead, most users
suddenly discover that these files are accumulating on their hard
drives, or notice a fleeting message on the screen about them
during a version upgrade. Many, I suspect, simply leave them alone,
uncertain what to do about them. Yet dealing with them is simply a
matter of using a few basic commands, and can be a necessity for
ensuring trouble-free upgrades in the future.
"Both .rpmnew and .rpmsave files are the result of a cautious
upgrade policy in .RPM packages. When an upgrade includes changes
to a default configuration file, instead of overwriting the
configuration file on your system--and possibly nuking the changes
you have made--the package will write one of these file
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