diff --git a/TODO.md b/TODO.md
index 527bce4..89a87b6 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,4 +2,14 @@ To-Do
 =====
 A to-do list for the project. Feel free to remove items as you solve them in your pull requests.
 
+Next
+----
+To-do items to do for the next version:
+
 - Profile code to better use `likely()` and `unlikely()` macros.
+
+Features
+--------
+Features for future versions (not _Next_) of Indivisible:
+
+- Implement multi-threaded version using OpenCL or OpenMP (whichever works).