Document Geo container list view regression

doc/administration/geo/replication/version_specific_updates.md

@@ -11,6 +11,10 @@ Check this document if it includes instructions for the version you are updating
 These steps go together with the [general steps](updating_the_geo_nodes.md#general-update-steps)
 for updating Geo nodes.
 
+## Updating to GitLab 13.5
+
+In GitLab 13.5, there is a [regression that prevents viewing a list of container repositories and registries](https://gitlab.com/gitlab-org/gitlab/-/issues/285475) on Geo secondaries. This issue is fixed in GitLab 13.6.1 and later.
+
 ## Updating to GitLab 13.3
 
 In GitLab 13.3, Geo removed the PostgreSQL [Foreign Data Wrapper](https://www.postgresql.org/docs/11/postgres-fdw.html) dependency for the tracking database.