* Invalid views now default to 'default' view. #1161.
* Metadata cache now handles a 0 string. #1227
* ElggPlugin get() now works with 0. #1286
- * Metadata __isset() now works for falsy entities (except NULL). #1414
+ * Metadata __isset() now works for falsy values (except NULL). #1414
API changes:
* New plugin hook system:unit_test for adding files to unit tests.
* Deprecated get_entities_from_access_id(). Use elgg_get_entities_from_access_id().
* Deprecated get_entities_from_annotations(). Use elgg_get_entities_from_annotations().
* Reorganized directory file path to rely on GUID instead of username.
- * annotation_id column added to the river database table
+ * annotation_id column added to the river database table.
+ * unregister_elgg_event_handler() and unregister_plugin_hook() added. #1465
Services API:
* Separated user and api authenticate processing