The updated Software Collection Library 1.1 packages from upstream
have been posted to SL6 x86_64's dedicated repo.

This repo features updated software products with a shorter lifecycle 
than the base distribution.

It includes:

- Ruby 1.9.3 with Rails 3.2.8
- Ruby 2.0.0 with Rails 4.0
- Python 2.7 and 3.3
- PHP 5.4 and 5.5
- Perl 5.16.3

- Apache 2.4
- MySQL and MariaDB 5.5
- PostgreSQL 9.2
- MongoDB 2.4

With the following as Technology Preview:

- Node.js 0.10
- Nginx 1.4.4
- Thermostat 1.0

The following supporting tools are provided:
- V8 JavaScript engine 3.14

Please be sure to review the published documentation and upstream 
release notes.

http://ftp.scientificlinux.org/linux/scientific/6x/external_products/softwarecollections/

https://access.redhat.com/documentation/en-US/Red_Hat_Software_Collections/1/html/1.1_Release_Notes/

-- 
Pat Riehecky

Scientific Linux developer
http://www.scientificlinux.org/