diff --git a/changelogs/internal/newsfragments/1344.clarification b/changelogs/internal/newsfragments/1344.clarification
new file mode 100644
index 00000000..c162f565
--- /dev/null
+++ b/changelogs/internal/newsfragments/1344.clarification
@@ -0,0 +1 @@
+Update module summary table with new modules: Event Replacements, Threading and Reference Relations.
\ No newline at end of file
diff --git a/content/client-server-api/_index.md b/content/client-server-api/_index.md
index 6ab6f46a..e8255dfa 100644
--- a/content/client-server-api/_index.md
+++ b/content/client-server-api/_index.md
@@ -2556,6 +2556,9 @@ that profile.
 | [Server Notices](#server-notices)                          | Optional  | Optional | Optional | Optional | Optional |
 | [Moderation policies](#moderation-policy-lists)            | Optional  | Optional | Optional | Optional | Optional |
 | [Spaces](#spaces)                                          | Optional  | Optional | Optional | Optional | Optional |
+| [Event Replacements](#event-replacements)                  | Optional  | Optional | Optional | Optional | Optional |
+| [Threading](#threading)                                    | Optional  | Optional | Optional | Optional | Optional |
+| [Reference Relations](#reference-relations)                | Optional  | Optional | Optional | Optional | Optional |
 
 *Please see each module for more details on what clients need to
 implement.*