[CentOS] CentOS 6-6.3 -> no updates and security fixes?

Hi All.

I've found:

This directory (and version of CentOS) is depreciated.  For normal users,
you should use /6/ and not /6.3/ in your path. Please see this FAQ
concerning the CentOS release scheme:

http://www.centos.org/modules/smartfaq/faq.php?faqid=34

If you know what you are doing, and absolutely want to remain at the 6.3
level, go to http://vault.centos.org/ for packages.

Please keep in mind that 6.0, 6.1, 6.2 and 6.3 no longer gets any updates,
nor
any security fix's.

in http://eu-msync.centos.org/centos-6/6.3/readme

Is CentOS 6-6.3 really not updated anymore? Why so soon after release of
6.4?

Best regards,
Rafal.