This developer version is compatible with Drupal 4.7.x official releases. It incorporates the latest changes and should generally work. However, for a production-level version with commercial support, use 4.7.x-1.0 instead.
On 2006-02-19 an important bug was fixed, you are advised to update (made sure the package you download has a .module file with a date of 2006-02-19 or later). Request caching prevent the correct file from being send to the user.