Drupal 7.0 Alpha 1 released

After nearly two years of development, we are proud to announce the release of the first alpha version of the Drupal 7.x family. This alpha includes a tremendous number of new features and new under-the-hood improvements for both users and developers.

We revamped Drupal's user interface, added key contributed modules including CCK and ImageField, introduced a new object-oriented database layer, revamped file handling capabilities, and an automated testing framework based on SimpleTest, among literally hundreds of other improvements. Drupal 7.0 alpha 1 is the collective work of over 800 core contributors.

The rest on the Drupal official website