diff --git a/artemis-core-client/src/main/java/org/apache/activemq/artemis/api/config/ActiveMQDefaultConfiguration.java b/artemis-core-client/src/main/java/org/apache/activemq/artemis/api/config/ActiveMQDefaultConfiguration.java
index fe5353ff6c9..18e3f17b91f 100644
--- a/artemis-core-client/src/main/java/org/apache/activemq/artemis/api/config/ActiveMQDefaultConfiguration.java
+++ b/artemis-core-client/src/main/java/org/apache/activemq/artemis/api/config/ActiveMQDefaultConfiguration.java
@@ -684,7 +684,7 @@ public static String getDefaultHapolicyBackupStrategy() {
    private static final boolean DEFAULT_SECURITY_CACHE_METRICS = false;
 
    // How often (in ms) to scan for expired MQTT sessions
-   private static long DEFAULT_MQTT_SESSION_SCAN_INTERVAL = 500;
+   private static long DEFAULT_MQTT_SESSION_SCAN_INTERVAL = 5000;
 
    // How long (in ms) to wait to persist MQTT session state
    private static long DEFAULT_MQTT_SESSION_STATE_PERSISTENCE_TIMEOUT = 5000;
diff --git a/docs/user-manual/versions.adoc b/docs/user-manual/versions.adoc
index a30634b369b..6f53605fc42 100644
--- a/docs/user-manual/versions.adoc
+++ b/docs/user-manual/versions.adoc
@@ -13,6 +13,22 @@ NOTE: If the upgrade spans multiple versions then the steps from *each* version
 
 NOTE: Follow the general upgrade procedure outlined in the xref:upgrading.adoc#upgrading-the-broker[Upgrading the Broker]  chapter in addition to any version-specific upgrade instructions outlined here.
 
+== 2.42.0
+
+https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315920&version=12355900[Full release notes]
+
+=== Highlights
+
+* Example highlight 1
+* Example highlight 2
+
+=== Upgrading from 2.41.0
+
+* The broker was always meant to scan MQTT sessions every `5000` milliseconds, but due to a bug it was doing so every `500` milliseconds instead.
+This has been fixed via https://issues.apache.org/jira/browse/ARTEMIS-5202[ARTEMIS-5202].
+Since this is technically changing the default behavior of the broker it is being enumerated here for clarity.
+Keep in mind that this is configurable via the xref:mqtt.adoc#automatic-subscription-clean-up[`mqtt-session-scan-interval`] parameter in `broker.xml`.
+
 == 2.41.0
 
 https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315920&version=12355793[Full release notes]