Running Drupal 6 on the weekend
As most Drupal users already know by now, Drupal 6 is currently at a Release Candidate 3 stage of development. For the Drupal community, this is a time when the developers are wanting people to test, report, and help fix any bugs found in these development version of the Drupal software. At this stage of development, Drupal.org still does not recommend Drupal 6 to be ran on the production server.
As with everything still in development, we do not recommend running release candidates on a live site. Also, always be sure to make a backup of your data before performing any upgrade or starting testing.