diff --git a/TODO b/TODO
index 0a1dc7a..753ad13 100644
--- a/TODO
+++ b/TODO
@@ -1,8 +1,8 @@
-Simplify send() routine to call diff() when state has changed
+[DONE] Simplify send() routine to call diff() when state has changed
 
-Delayed ACK
+[DONE] Delayed ACK
 
-Figure out packet double-sending issue [if delay > 1/50 sec?]
+[DONE] Figure out packet double-sending issue [if delay > 1/50 sec?]
 
 Graceful exit / server shutdown