Updated TODO.

docs/TODO

@@ -7,7 +7,7 @@ Networking:
     [NOT STARTED] NAT-PMP port forwarding.
 
 DHT:
-    [IN PROGRESS] Metadata collection prevention.
+    [IN PROGRESS] Metadata collection prevention. (docs/Prevent_Tracking.txt)
     [IN PROGRESS] Hardening against attacks.
     [IN PROGRESS] Optimizing the code.
 
@@ -35,7 +35,11 @@ Friend_requests.c:
 [IN PROGRESS] IPV6 support
     [DONE] Networking
     [DONE] DHT + Messenger
-    [NOT STARTED] Group chats
+    [NOT STARTED] Group chats (They work with IPv6 but some things need to be tested.)
+
+[NOT STARTED] Make the save made with tox_save_encrypted(...) harder to brute force.
+
+[IN PROGRESS] GUI (no official GUI chosen yet, will most likely be: 
+https://github.com/nurupo/ProjectTox-Qt-GUI or https://github.com/naxuroqa/Venom)
 
-[IN PROGRESS] GUI (no official GUI chosen yet)
 [NOT STARTED] Security audit from professionals