diff --git a/CHANGELOG b/CHANGELOG
index 173886159080cd2f6aea68b07d529d1c061ee06a..8231d9e8413f00e9142280678a7d315c66ca819e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -118,6 +118,7 @@ v 8.11.4
   - Fix issue boards leak private label names and descriptions
   - Fix broken gitlab:backup:restore because of bad permissions on repo storage !6098 (Dirk Hörner)
   - Remove gitorious. !5866
+  - Allow compare merge request versions
 
 v 8.11.3
   - Allow system info page to handle case where info is unavailable
diff --git a/doc/user/project/merge_requests/versions.md b/doc/user/project/merge_requests/versions.md
index 2b1c5ddd5623476c566fd77170431f4e155a84b6..a6aa4b47835cb3be86bce7ee9c2f7cca7b97188d 100644
--- a/doc/user/project/merge_requests/versions.md
+++ b/doc/user/project/merge_requests/versions.md
@@ -12,6 +12,12 @@ can select an older one from version dropdown.
 
 ![Merge Request Versions](img/versions.png)
 
+You can also compare the merge request version with older one to see what is
+changed since then.
+
+Please note that comments are disabled while viewing outdated merge versions
+or comparing to versions other than base.
+
 ---
 
 >**Note:**