TODO list. [IN PROGRESS] Add what is left to do to the TODO list. Networking: [NEEDS TESTING] UPnP port forwarding. (https://github.com/irungentoo/toxcore/pull/969) [NOT STARTED] NAT-PMP port forwarding. DHT: [ALMOST DONE] Metadata collection prevention. (docs/Prevent_Tracking.txt) [IN PROGRESS] Hardening against attacks. [IN PROGRESS] Optimizing the code. [IN PROGRESS] Friend only group chats [IN PROGRESS] Networking base. [IN PROGRESS] Syncing chat state between clients (nicknames, list of who is in chat, etc...) [IN PROGRESS] Audio/Video [DONE] encoding/streaming/decoding [DONE] Call initiation [DONE] Encryption [IN PROGRESS] Auditing. [NEEDS TESTING] Video packet splitting. [IN PROGRESS] Prevent audio skew (seems to be easily solvable client side.) [IN PROGRESS] Group chats. Friend_requests.c: [NOT STARTED] What happens when a friend request is received needs to be changed. [NOT STARTED] Add multiple nospam functionality. [DONE] File transfers [NOT STARTED] Offline messaging [NOT STARTED] Friends list syncing [DONE] IPV6 support [IN PROGRESS] Make toxcore thread safe. [NOT STARTED] Make the core save/datafile portable across client versions/different processor architectures. [MOSTLY DONE] A way for people to connect to people on Tox if they are behind a bad NAT that blocks UDP (or is just unpunchable) (docs/TCP_Network.txt) [DONE] Encrypted Saves. (see: toxencryptsave) [IN PROGRESS] GUI (no official one chosen yet, a list of promising ones follows) https://github.com/notsecure/uTox https://github.com/tux3/qTox https://github.com/Reverp/Toxy [NOT STARTED] Security audit from professionals