I'm puzzled about the historical part. I found a random list of repos before CentOS 7 was in vault:
```
[base]
name=CentOS $releasever – Base
baseurl=http://mirror.centos.org/centos/7/os/basearch/
gpgcheck=0
enabled=1
[updates]
name=CentOS $releasever – Updates
baseurl=http://mirror.centos.org/centos/7/updates/basearch/
gpgcheck=0
enabled=1
[extras]
name=CentOS $releasever – Extras
baseurl=http://mirror.centos.org/centos/7/extras/basearch/
gpgcheck=0
enabled=1
```
In such configuration, shouldn't it have seamlessly upgraded to the next minor with the next yum/dnf upgrade? I get that if you type 7.0 somewhere in there you'll stay on this minor forever, but that's someone's deliberate choice.
