CentALT RPM Repository provides most of updated packages for RHEL based systems. I also use this repository for getting recent version of packages. This article will help you to install CentALT repository in CentOS 6/5, RHEL 6/5 systems.
Install CentALT in CentOS/RHEL 6/5
Use one of below option to install CentALT repository as per your system architecture and operating system.
CentOS/RHEL 6, 32 Bit (i386):
# rpm -Uvh http://centos.alt.ru/repository/centos/6/i386/centalt-release-6-1.noarch.rpm
CentOS/RHEL 6, 64 Bit x86_64):
# rpm -Uvh http://centos.alt.ru/repository/centos/6/x86_64/centalt-release-6-1.noarch.rpm
CentOS/RHEL 5, 32 Bit (i386):
# rpm -Uvh http://centos.alt.ru/repository/centos/5/i386/centalt-release-5-3.noarch.rpm
CentOS/RHEL 5, 64 Bit (x86_64):
# rpm -Uvh http://centos.alt.ru/repository/centos/5/x86_64/centalt-release-5-3.noarch.rpm