In preparation of the Drupal 6.0 release development of Drupal core is frozen as of July 1st. During the initial stage of the code freeze, documentation updates, usability improvements, and performance improvements will still be accepted. New functionality or API changes / additions, on the other hand, will not be unless deemed critical. As of today, the focus is to strengthen the code base's performance, usability, and stability. As we progress, focus will shift towards stability and, near the end of the code freeze, only bug fixes will be allowed, until no release critical bugs are left. As always, everyone is invited to help.