This site is built using the free open source Drupal and CiviCRM software. These are under constant development, and occasionally we need to install a significant upgrade to keep pace with the latest versions. This is a requirement for maintaining security of the site, and typically also adds many new features and improvements. Today we have committed a (some might say brave!) double upgrade: from Drupal 4.7 to Drupal 5.1, and from CiviCRM 1.5 to CiviCRM 1.7. A few things will change around the site as we tweak settings to make the most of the upgrade, and a few features have or will change. We have managed though to maintain most of the look and feel and features of the old site, and are starting the process of merging new features in.