My IMCE plugin for YUI Editor has been included in drupal CVS git and the 6.x-2.33 release. Now I can claim to have code included in an official drupal release, ok it is a small plugin for a contrib module, we all have to start somewhere.
The version included in Drupal only supports YUI 2.5.x as the API has changed in 2.6. I have a new version which supports 2.6.x, but it has a layout bug, so I won’t be submitting it until this bug is fixed.