The code freeze is over! We're accepting new features in the development version of Drupal while the forthcoming Drupal 4.7.0 release is being finalized and maintained parallel to that in the newly created DRUPAL-4-7 branch. That said, bear in mind that the current focus is to release Drupal 4.7.0, and not to add features to the development version.

[edit. Instead of throwing here every feature request in mind, please use the the request new feature facility of the issue tracker but only after you have given a lot of consideration that your feature is truly core worthy. chx]