---
title: Litmus Unify 2.0.2
slug: unify/litmus-unify-202
docTags: 
createdAt: 2026-07-13T15:21:54.980Z
---

Release Date: July 7, 2026

## Enhancement

| Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Backend:**<br />- Added a configurable maximum session interval for v3 clients (matching the existing v5 behavior). Disconnected v3 sessions are cleared from the broker after the interval expires. Offline client counts&#xD; now reflect only clients that are disconnected and haven't yet exceeded the interval.<br />- Increased visibility of message flows and errors with the following Prometheus metrics:<br />- `mqtt_auth_total`<br />- `mqtt_client_inflight_utilization_bucket`<br />- `mqtt_client_inflight_utilization_count`<br />- `mqtt_client_inflight_utilization_sum`<br />- `mqtt_clients_connected`<br />- `mqtt_clients_disconnected`<br />- `mqtt_clients_send_quota_saturated`<br />- `mqtt_connects_total`<br />- `mqtt_disconnects_total`<br />- `mqtt_inflight_messages`<br />- `mqtt_message_bytes_received_total`<br />- `mqtt_message_bytes_sent_total`<br />- `mqtt_messages_dropped_total`<br />- `mqtt_messages_received_total`<br />- `mqtt_messages_sent_total`<br />- `mqtt_packets_read_total`<br />- `mqtt_packets_sent_total`<br />- `mqtt_publish_e2e_latency_seconds_bucket`<br />- `mqtt_publish_e2e_latency_seconds_count`<br />- `mqtt_publish_e2e_latency_seconds_sum`<br />- `mqtt_published_total`<br />- `mqtt_qos_resends_total`<br />- `mqtt_retained_added_total`<br />- `mqtt_retained_messages`<br />- `mqtt_sessions_expired_total`<br />- `mqtt_subscriptions` |
| **Unified Name Space (UNS):**<br />- Restored the **View topic data** option to the **Hierarchy** action menu in the **Namespace** and **Raw** tabs.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| **Deployment:**<br />- Added Helm chart support for running multiple High Availability proxy replicas.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |

## Resolved issues

| Description                                                                                                                                                  |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| - Fixed issue where the client listing displayed a session-expired v5 MQTT client as a live entry instead of removing it after the client's session expired. |