diff --git a/docs/labs.md b/docs/labs.md
index 2518ed970ea..a7f758bc69e 100644
--- a/docs/labs.md
+++ b/docs/labs.md
@@ -172,3 +172,11 @@ who prefer to have the right panel open consistently across rooms.
 If no right panel state is known for the room or it was closed on the last room
 visit, it will default to the room member list. Otherwise, the saved card last
 used in that room is shown.
+
+## Threaded Messaging (`feature_thread`)
+
+Threading allows users to branch out a new conversation from the main timeline of a room. This is particularly useful in high traffic rooms where multiple conversations can happen in parallel or when a single discussion might stretch over a very long period of time.
+
+Threads can be access by clicking their summary below the root event on the room timeline. Users can find a comprehensive list of threads by click the icon on the room header button.
+
+This feature might work in degraded mode if the homeserver a user is connected to does not advertise support for the unstable feature `org.matrix.msc3440`  when calling the `/versions` API endpoint.