diff --git a/docs/overview/changelog.md b/docs/overview/changelog.md
index 20c35b0d57..19e8a5e803 100644
--- a/docs/overview/changelog.md
+++ b/docs/overview/changelog.md
@@ -19,6 +19,8 @@ in bursts.
 
 
 **Security and privacy:**
+- Several important security fixes since 1.7.0, which were released
+  already in 1.7.1 and 1.7.2.
 - The security model for private streams has changed.  Now
   organization administrators can remove users, edit descriptions, and
   rename private streams they are not subscribed to.  See Zulip's