diff --git a/TODO b/TODO
index 55342bc976e..93dfc8f2a71 100644
--- a/TODO
+++ b/TODO
@@ -46,6 +46,9 @@ Fedora 19:
 
 Features:
 
+* systemd-delta needs to be made aware of *.d/*.conf drop-in files for
+  units.
+
 * seems that when we follow symlinks to units we prefer the symlink
   destination path over /etc and /usr. We shouldn't do that. Instead
   /etc should always override /run+/usr and also any symlink
diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h
index 5dcc5014cf1..45b264ab1c5 100644
--- a/src/systemd/sd-bus.h
+++ b/src/systemd/sd-bus.h
@@ -33,6 +33,8 @@ extern "C" {
 #endif
 
 /* TODO:
+ * - rewrite message_read_ap() and message_append_ap() to be non-recursive.
+ *
  * - add page donation logic
  * - api for appending/reading fixed arrays
  * - merge busctl into systemctl or so?