So long, Drupal 5.x (End of Life Announcement)

On January 15, 2007 (Drupal’s 6th Birthday), Drupal 5.0 was released. Neil Drumm acted as the Branch Maintainer for the past four years up until one final commit on January 6, 2011 to clarify the PHP compatibility.

When Drupal 7 was released that meant that Drupal 5 was no longer supported. This announcement is merely a reminder of that fact. It is the policy (and, to large extent a matter of pragmatics) of the Drupal community to support only the current major release of Drupal (currently Drupal 7.x), and the previous release (currently Drupal 6.x). See Drupal’s version info for more details on this policy.
Drupal 5 is no longer officially supported

What does it mean that Drupal 5 is no longer officially supported?

1. You should not expect any of these issues to be fixed in Drupal core.
2. The Drupal Security team will no longer solicit nor work to address issues that are reported in the 5.x branch of Drupal core or contributed projects.
3. The Update Status module, introduced with Drupal 5, relies on XML from drupal.org. That XML is still used for newer versions of the module but may be changed in ways that break the Drupal 5 version of the Update Status module.

What does this mean for you?

Read more at Drupal