The latest version of Drupal 6 has been made available. From the release announcement:
Highlights of changes in this release include settings form inheritance for subthemes, syslog identity configuration support, better update support from Drupal 5, support for the tel: protocol, several fixes to the node translation system, fixes for CSS aggregation with non UTF-8 characters, support for specifying database collation, more complete coverage of HTML entities in entity decoding and various documentation fixes and other smaller bugfixes. In total almost 50 patches were committed to improve Drupal 6. For more information about the Drupal 6.x release series, consult the Drupal 6.0 release announcement
Grab your copy from the Drupal website: http://drupal.org