General :: Package Versioning And Difference Of MD5Sum On Files?

I noticed something a little odd I'm hoping someone can enlighten me on. I noticed in a couple of cases that a package has the proper version, but differs in two regards.

1. The package ends up with a .el4 on the end of the version for Red Hat 4.

2. The actual MD5Sum of the files the package provides differ.

An example below:

Code:

[root@RH4ES32-MCE bin]# for i in `rpm -ql GConf2`;do md5sum $i;done;
md5sum: /etc/gconf/2: Is a directory
9f90335546f7c57ae6fb552cc2b919c5 /etc/gconf/2/path
md5sum: /etc/gconf/gconf.xml.defaults: Is a directory

[code].....

So my package changed slightly to now show .el4 versus just 2-2.8.1-1 I've indicated in the first output above that the first couple of lines differ. I stopped my comparison at that point as they truly are different.