The version’ing of CentOS and mapping it to the equivalent Red Hat version is a little confusing at first glance. Release 7 (1611)? What is that? Is it 7.2 or 7.3? Let’s take a look.
The HARD WAY: Doing the following command gives you the Kernel version, which you can use to look up the release version.
[YumTech@AwesomeServer ~]$ uname -r
3.10.0-327.el7.x86_64
If you have them all memorized… (not me) then you would know that’s CentOS 7.2. Time to upgrade…
The EASY WAY: But if you want to see the release version:
[YumTech@AwesomeServer ~]$ cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
Or:
YumTech@AwesomeServer ~]$ rpm -q centos-release
centos-release-7-2.1511.el7.centos.2.10.x86_64
Also, the download page on the CentOS web site shows the release mapping to Red Hat:
https://wiki.centos.org/Download
