notmuch_database_find_message_by_filename does exactly what it says.
+Python bindings changes
+-----------------------
+
+ - Re-encode python unicode objects to utf-8 before passing back to
+ libnotmuch.
+ - Support Database().begin_atomic()/end_atomic()
+ - Support Database().find_message_by_filename()
+ - Fixes where we would not throw NotmuchErrors when we should (Justus Winter)
+
Ruby bindings changes
---------------------