Drupal 6 is the Drupal version released on February 13, 2008. Rather than using this tag, consider posting your question directly on https://drupal.stackexchange.com/.
Drupal 6 is the Drupal version released on February 13, 2008.
It will be officially supported until Drupal 8 has reached its first official release. After that bugs and security issues will no be longer be fixed for Drupal 6.
See drupal for more information about Drupal.
Requirements
- Web server: Apache, Nginx, or Microsoft IIS
- Database server: MySQL 4.1 or higher, PostgreSQL 7.1
- PHP: PHP 4.4.0 or higher (5.3 recommended)