
Red Hat Software Collections repository opened which can be used in Centos

Perl 5.16.3
PHP 5.4.14
Python 2.7
Python 3.3
Ruby 1.9.3
MariaDB 5.5
MySQL 5.5
PostgreSQL 9.2
Node.js 0.10
The documentation describes the mysql and postgresql
dev.centos.org/ update process centos / 6 / SCL / docs
You can install by downloading the repository settings file from here
dev.centos.org/centos/6/SCL/scl.repo