Drupal 6 vs. Drupal 7

For now, the winner is clear.

We recently uncovered an excellent example of the immature state of Drupal 7 versus its well-established predecessor Drupal 6. We noticed early on in a recent project that the underlying data structure for content had changed in Drupal—there is now a component of the content-element data object that stores a Language ID for each value, which didn’t exist in D6 (granted, it’s always set to “undefined”, but it is there). This means that, in theory, individual content elements can have different language values, even in a single node (e.g. /node/123 can be displayed with English or French content).