Drupal 6 LTS

The short answer is: Drupal 6 officially supports only PHP 5.2, but you should use the highest version of PHP that doesn't break your site!

For the longer answer:

PHP 5.2.17 is the latest version of PHP in the 5.2.x branch of the popular programming language. While there are several newer versions, it's a safe bet that legacy code will operate under 5.2.17. However, there are potential security holes with earlier versions of PHP.

February 13, 2008

Like Drupal 7 and Drupal 8 after it, Drupal 6 included more "core" modules to enhance the basic installation experience. It featured upgraded base jQuery functionality. The effort of Drupal 6 took about a year coming after the release of Drupal 5 on January 15, 2007.

Drupal 5 was "end of lifed" in January of 2011 with the release of Drupal 7.0.

Similarly, we are approaching the Termination of development focus of Drupal 6 on February 24, 2016.

In case you haven't heard, the Drupal project is discontinuing "official support" for Drupal 6!

Typically, only two major versions of Drupal are supported at once: the latest version, and the previous one. Right now, that means Drupal 7 and 6 are supported.

But when Drupal 8 is released on November 19th, 2015, Drupal 6 will only be officially supported for an additional 3 months (until February 24th, 2016).

Of course, you'll need to update to Drupal 7 or 8 eventually!

But what if 3 months isn't enough time for you to upgrade?

We're happy to announce Long-Term Support (LTS) for Drupal 6, in order to keep your site going long after the end of official support!

Read more to learn what the end of official support means, and the details of our Drupal 6 LTS.