On March 09 2013, CentOS project team has announced the release of CentOS 6.4 Enterprise Linux for both i386 and x86_64 system architecture. This release was their forth update in the CentOS 6.x series and bundled with lots of new features, new functionalists and many bug fixes.
CentOS 6.4 is an open source community driven Linux operating system that purely based on upstream release of Red Hat Enterprise Linux (EL) 6.4. This new release involves software packages from all variants including Server and Client.