---
title: Combined Hermes Messaging Service release notes for upgrades from Xanadu to Australia
description: Consolidated page of all release notes for Hermes Messaging Service from Xanadu to Australia.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/delta-xanadu-australia/australia-xanadu-hermesmessagingservice-release-notes.html
release: australia
topic_type: reference
last_updated: "2026-10-09"
reading_time_minutes: 6
breadcrumb: [Products combined by family]
---

# Combined Hermes Messaging Service release notes for upgrades from Xanadu to Australia

Consolidated page of all release notes for Hermes Messaging Service from Xanadu to Australia.

## How to use this page

To help you prepare for your upgrade, we have combined the cross-family Hermes Messaging Service release notes onto one page. Read this summary of the new features, changes, and updated information for your product from Xanadu to Australia.

**Tip:** If there were no updates for a release notes section in a certain family release, we included a short note for your reference. For example, if a product did not have any updates in Tokyo, the row says "No updates for this release."

## Important information for upgrading Hermes Messaging Service to Australia

Before you upgrade to Australia, review these pre- and post-upgrade tasks and complete the tasks as needed.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## New features

Between your current release family and Australia, new features were introduced for Hermes Messaging Service.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

-   **[Monitor Hermes data usage](https://www.servicenow.com/docs/access?context=monitoring-data-usage-hermes&family=xanadu&ft:locale=en-US)**

Monitor data usage by application and track data usage by topic using the Hermes Usage Dashboard.


</td></tr><tr><td>

Yokohama

</td><td>

-   **[Topic audit history](https://www.servicenow.com/docs/access?context=view-messages-hermes-topic&family=yokohama&ft:locale=en-US)**

Track changes made to a Hermes topic by viewing the topic's audit information.

-   **[Search for messages in a topic](https://www.servicenow.com/docs/access?context=view-messages-hermes-topic&family=yokohama&ft:locale=en-US)**

Filter messages in a topic using keywords or regular expressions in the Hermes Messaging Service topic inspector.

-   **[Improved diagnostics](https://www.servicenow.com/docs/access?context=run-hermes-messaging-service-diagnostics&family=yokohama&ft:locale=en-US)**

Monitor the health of Hermes components over time.


</td></tr><tr><td>

Zurich

</td><td>

-   **[Monitor Hermes data usage](https://www.servicenow.com/docs/access?context=monitoring-data-usage-hermes&family=zurich&ft:locale=en-US)**

Monitor data usage by application and track data usage by topic using the Hermes Usage Dashboard.

-   **[Synchronize topic partition count](https://www.servicenow.com/docs/access?context=update-topic-hermes&family=zurich&ft:locale=en-US)**

Verify that the partition count is synchronized between topics in Hermes clusters.


</td></tr><tr><td>

Australia

</td><td>

-   **[Hermes Settings page](https://www.servicenow.com/docs/access?context=c-hermes-settings&family=australia&ft:locale=en-US)**

Enable maintenance users and administrators to view and modify Hermes configuration properties and manage background jobs directly from the Hermes Settings page.

-   **[Encryption at rest for Hermes topics](https://www.servicenow.com/docs/access?context=encryption-at-rest&family=australia&ft:locale=en-US)**

Protect message data stored on broker disks by enabling encryption at rest on individual Hermes topics. Choose between ServiceNow-managed keys or customer-supplied keys using the Bring Your Own Key \(BYOK\) model.


 -   **[Expanded topic limits in Hermes](https://www.servicenow.com/docs/access?context=exploring-hermes-messaging-service&family=australia&ft:locale=en-US)**

Create more topics in Hermes with an increased topic limit. The total number of partitions across all topics can't exceed 960.

-   **[Hermes Usage Dashboard improvements](https://www.servicenow.com/docs/access?context=monitoring-data-usage-hermes&family=australia&ft:locale=en-US)**

View Hermes data usage by source, including the total number of bytes received and bytes sent over time, in the Hermes Usage Dashboard.

-   **[Access restrictions by IP address](https://www.servicenow.com/docs/access?context=restricting-access-hermes-topics&family=australia&ft:locale=en-US)**

Restrict access to Hermes by enabling IP address access control rules.

-   **[View-only role](https://www.servicenow.com/docs/access?context=hermes-messaging-service-roles-4&family=australia&ft:locale=en-US)**

Enable administrators to view topics and namespaces in Hermes by granting the hermes\_viewer role instead of the full admin role.


</td></tr></tbody>
</table>## Changes

Between your current release family and Australia, some changes were made to existing Hermes Messaging Service features.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

-   **[Monitor topics in multiple cluster sets](https://www.servicenow.com/docs/access?context=view-messages-hermes-topic&family=xanadu&ft:locale=en-US)**

View messages from multiple cluster sets by selecting a service group in the Hermes Topic Inspector module.

-   **[Test connectivity to multiple cluster sets](https://www.servicenow.com/docs/access?context=run-hermes-messaging-service-diagnostics&family=xanadu&ft:locale=en-US)**

Verify that your instance can send messages to and receive messages from multiple cluster sets by selecting a service group in the Hermes Diagnostics module.


</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

-   **Coral theme**

Coral is now the default theme for new portal, web, and mobile experiences with Next Experience or Core UI enabled. This theme provides a fresh look and feel, featuring brand-neutral illustrations to enhance your user experience. A dark theme option is available for web and mobile experiences.


</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Removed

Between your current release family and Australia, some Hermes Messaging Service features or functionality were removed.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Deprecations

Between your current release family and Australia, some Hermes Messaging Service features or functionality were deprecated.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Activation information

Review information on how to activate Hermes Messaging Service.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

Hermes Messaging Service is a ServiceNow AI Platform feature that is available with activation of the ServiceNow Stream Connect Installer \(com.glide.hub.stream\_connect.installer\) plugin or installation of the Log Export Service application. For details, see [Hermes Messaging Service activation](https://www.servicenow.com/docs/access?context=hermes-messaging-service-activation&family=xanadu&ft:locale=en-US).

</td></tr><tr><td>

Yokohama

</td><td>

-   **Activation information**

Hermes Messaging Service is a ServiceNow AI Platform feature that is available with activation of the ServiceNow Stream Connect Installer \(com.glide.hub.stream\_connect.installer\) plugin or installation of the Log Export Service application. For details, see [Hermes Messaging Service activation](https://www.servicenow.com/docs/access?context=hermes-messaging-service-activation&family=yokohama&ft:locale=en-US).


</td></tr><tr><td>

Zurich

</td><td>

-   **Activation information**

Hermes Messaging Service is a ServiceNow AI Platform feature that is available with activation of the ServiceNow Stream Connect Installer \(com.glide.hub.stream\_connect.installer\) plugin or installation of the Log Export Service application. For details, see [Activating Hermes](https://www.servicenow.com/docs/access?context=hermes-messaging-service-activation&family=zurich&ft:locale=en-US).


</td></tr><tr><td>

Australia

</td><td>

-   **Activation information**

Hermes Messaging Service is a ServiceNow AI Platform feature that is available with activation of the ServiceNow Stream Connect Installer \(com.glide.hub.stream\_connect.installer\) plugin or the installation of the Log Export Service application. For details, see [Activating Hermes](https://www.servicenow.com/docs/access?context=hermes-messaging-service-activation&family=australia&ft:locale=en-US).


</td></tr></tbody>
</table>## Additional requirements

If any additional requirements were introduced or changed for Hermes Messaging Service we have noted them here.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Browser requirements

If any specific browser requirements were introduced or changed for Hermes Messaging Service we have noted them here.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Accessibility information

Review details on accessibility information for Hermes Messaging Service, such as specific requirements or compliance levels.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

-   **Accessibility information**
    -   **Dark theme**

The new Coral theme includes a dark theme option for web and mobile experiences. This option is commonly used to alleviate eye strain and improve readability.


</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Localization information

If there are specific localization considerations for Hermes Messaging Service we have noted them here.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

No updates for this release.

</td></tr><tr><td>

Yokohama

</td><td>

No updates for this release.

</td></tr><tr><td>

Zurich

</td><td>

No updates for this release.

</td></tr><tr><td>

Australia

</td><td>

No updates for this release.

</td></tr></tbody>
</table>## Highlight information

If there are specific highlight considerations for Hermes Messaging Service we have noted them here.

<table class="custom-rows"><thead><tr><th class="filter">

Release

</th><th>

Release notes

</th></tr></thead><tbody><tr><td>

Xanadu

</td><td>

-   Publish events from your ServiceNow instance to your Apache Kafka environment and consume high volumes of Apache Kafka events from your external systems with low latency.
-   Effectively process spikes and bursts in message volume from external systems to minimize performance impacts on your instance.
-   Manage the health and performance of message delivery using Hermes diagnostic tools.

 See [Hermes Messaging Service](https://www.servicenow.com/docs/access?context=hermes-messaging-service&family=xanadu&ft:locale=en-US) for more information.

</td></tr><tr><td>

Yokohama

</td><td>

-   View the audit history for all topic operations.
-   Scan and inspect topic messages using keywords or regular expressions.
-   Monitor the health of Hermes components over time.

 See [Hermes Messaging Service](https://www.servicenow.com/docs/access?context=hermes-messaging-service&family=yokohama&ft:locale=en-US) for more information.

</td></tr><tr><td>

Zurich

</td><td>

-   Monitor Hermes data usage over time.
-   Verify that topics are synchronized between Hermes clusters.

 See [Hermes Messaging Service](https://www.servicenow.com/docs/access?context=hermes-messaging-service&family=zurich&ft:locale=en-US) for more information.

</td></tr><tr><td>

Australia

</td><td>

-   Create more Hermes topics for specific events or integrations with an expanded topic limit.
-   View granular usage metrics in the Hermes Usage Dashboard.
-   Restrict access to the Hermes cluster based on the client IP address.
-   Manage Hermes configuration properties and background jobs from the Hermes Settings page.
-   Protect message data on broker disks with encryption at rest, with support for customer-supplied keys.

 See [Hermes Messaging Service](https://www.servicenow.com/docs/access?context=hermes-messaging-service&family=australia&ft:locale=en-US) for more information.

</td></tr></tbody>
</table>**Parent Topic:**[Products combined by family](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/delta-xanadu-australia/rn-combined-intro.md)