+* Add a "channel" library to MeshLink.
+ - Support multiple TCP- and UDP-like streams between two nodes.
+
+* Move queue code to its own source file.
+
+Not finished but being worked on:
+---------------------------------
+
+* Provide thread-safety to functions that return pointers to meshlink_node_t.
+ - The mesh->nodes tree can be updated by the library thread at any time,
+ so it must be protected by a mutex or rwlock.
+ - Individial node_t's must never be freed or moved except in meshlink_close().
+ - Check all public API functions.
+
+* Write a test suite for the library.