diff --git a/docs/installation/upgrade/2.4-to-2.4.x.md b/docs/installation/upgrade/2.4-to-2.4.x.md
index fc104433e..8e137061f 100644
--- a/docs/installation/upgrade/2.4-to-2.4.x.md
+++ b/docs/installation/upgrade/2.4-to-2.4.x.md
@@ -15,6 +15,10 @@ dovecotlinks:
    building with glibc. Note that [[setting,dovecot_config_version]] value does
    not affect change - it's always added.
 
+### v2.4.2 to v2.4.3
+
+ * Using [[link,settings_variables]] with LDAP settings now requires using `| safe` filter to allow passing through LDAP characters that are otherwise escaped. Note that this should be used only for variables coming from trusted sources, not for e.g. username variable.
+
 #### Changed Setting Defaults
 
 These changes don't take effect until [[setting,dovecot_config_version]] is