CentOS 7 has a release of 7.0.1406

> rpm -qf /etc/redhat-release
centos-release-7-0.1406.el7.centos.2.3.x86_64
> cat /etc/redhat-release
CentOS Linux release 7.0.1406 (Core)
Merge pull request #1026 from jmaas/master

Add CentOS 7.0 support to distro_signatures
Merge pull request #1021 from chutzimir/centos-7.0.1406

CentOS 7 has a release of 7.0.1406