*We try to notify this list when API changes are made in Drupal 7, so contrib and custom developers have a chance to fix their code before they have the pain of figuring out why it's broken.* Today there are quite a number of changes and some will require changes by many existing D7 modules. *The first two are pervasive* and will most likely affect you if you've developed D7 modules that provide fields or use the Managed File API. (issue <http://drupal.org/node/902264>) *hook_field_schema*() must be moved from the .module to the .install file. This affects *every module that implements fields. *Please update your module. In the process, if you use t() in that function, turn it into $t(). (issue <http://drupal.org/node/874326#comment-3430420>) *Managed File API functions like file_copy() can no longer use bare paths* for filepaths, they must use URIs with public://, private://, or temporary:// (or another Drupal-provided scheme). This will probably break your module if you use file_copy(), file_move(), or the like. Check here<http://randyfay.com/node/73>for a posting on file API changes that have gone in recently. (issue <http://drupal.org/node/878092#comment-3435332>) Format of links in an entity's $entity->links has changed. If your module provides an entity and it provides $entity->links, you'll have to fix this. You'll see from this patch still in the issue <http://drupal.org/node/878092#comment-3388496>that the same change is about to happen to comments, so you'll probably want to watch this issue. (issue <http://drupal.org/node/756762#comment-3435462>) AJAX Form API changes. These affect you only if your module uses #ajax['path'], implementing a custom callback (which is discouraged and almost always unnecessary in D7). But you'll want to read the summary<http://drupal.org/node/756762#comment-3435462>if you do use #ajax['path']. (issue <http://drupal.org/node/757154#comment-3408064>) More obscure change to Form API so hook_form_BASE_FORM_ID_alter() is called between hook_form_alter() and hook_form_FORM_ID_alter(), If you don't implement hook_forms() this probably does not affect you. Sorry to annoy you on a rainy Tuesday morning in Copenhagen :-) -Randy -- Randy Fay Drupal Module and Site Development randy@randyfay.com +1 970.462.7450