diff --git a/doc/update/versions/gitlab_16_changes.md b/doc/update/versions/gitlab_16_changes.md
index 2d2f8caa0800f4490c1ddd6df19420251a9f29db..5f9e994392580e4c9238f1ca4f09baf37555373c 100644
--- a/doc/update/versions/gitlab_16_changes.md
+++ b/doc/update/versions/gitlab_16_changes.md
@@ -33,6 +33,7 @@ For more information about upgrading GitLab Helm Chart, see [the release notes f
 ## 16.5.0
 
 - Git 2.42.0 and later is required by Gitaly. For self-compiled installations, you should use the [Git version provided by Gitaly](../../install/installation.md#git).
+- A regression may sometimes cause an [HTTP 500 error when navigating a group](https://gitlab.com/gitlab-org/gitlab/-/issues/431659). Upgrading to GitLab 16.6 or later resolves the issue.
 
 ### Linux package installations