BlogsWeek.com

“After 8 months of development we are ready to release Drupal 5.0 to the world. Today is also Drupal’s 6th birthday, so the timing could not be more perfect. Drupal 4.0 was released in 2002 and finally we feel confident to increase the major version number from 4 to 5.”

The list of changes in drupal 5.0 includes usability improvements and many new features for users and developers. You can find all the details in the release announcement (and a nice post on Drupal’s sixth birthday in the personal website of Dries Buytaert).

Please note that the Drupal 4.6 branch is no longer maintained, so switching to Drupal 4.7 or 5 is strongly advised.