--- sourceDocument: australia Combined Product Files sourceDocumentLink: https://www.servicenow.com/docs/r/australia/delta-xanadu-australia Release : - australia ft:locale : - en-US ft:publication_title : - australia Combined Product Files ft:clusterId : - delta3ax bundleId : - delta3ax --- # Combined Hermes Messaging Service release notes for upgrades from Xanadu to Australia # Combined Hermes Messaging Service release notes for upgrades from Xanadu to Australia {#ariaid-title1} Release version: Australia Updated October 8, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 6 minutes to read Summarize ![AI sparkle icon](https://servicenow.com/docs/portal-asset/ai-sparkle-icon) Summarized using AI This content was generated using new OpenAI-powered functionality. Results are provided on an as is basis and are not guaranteed to be accurate or complete. ## Summary of Combined Hermes Messaging Service Release Notes for Upgrades from Xanadu to Australia This consolidated release notes page provides ServiceNow customers with a comprehensive summary of new features, changes, and important upgrade information for the Hermes Messaging Service from the Xanadu through Australia release families. It is designed to assist with planning and executing upgrades by highlighting key updates and maintenance tasks across releases. Show full answer Show less ## Key Features * **Monitoring and Usage Tracking:** Starting from Xanadu, customers can monitor Hermes data usage by application and topic using the Hermes Usage Dashboard, with improvements in Australia enabling detailed views by source and tracking bytes sent and received over time. * **Topic Management and Inspection:** Yokohama introduced topic audit history views and message search capabilities within topics using keywords or regular expressions, enhancing operational transparency and troubleshooting. * **Diagnostics and Health Monitoring:** Enhanced diagnostics tools to monitor Hermes component health over time were introduced in Yokohama and Zurich releases. * **New Australia Enhancements:** * Hermes Settings page to allow maintenance users and administrators to view and modify configuration properties and manage background jobs directly. * Encryption at rest for Hermes topics with support for ServiceNow-managed keys or customer-supplied keys via Bring Your Own Key (BYOK) model, increasing data security. * Expanded topic limits allowing creation of more topics, with a total partition count limit of 960 partitions across all topics. * Access restrictions by IP address to secure Hermes cluster access. * Introduction of a view-only hermesviewer role for administrators to monitor topics and namespaces without full admin permissions. ## Changes * In Xanadu, monitoring topics across multiple cluster sets and testing connectivity to multiple cluster sets were introduced, facilitating multi-cluster management. * The Zurich release implemented the Coral theme as the default user interface theme with an optional dark theme to improve user experience and accessibility. * No changes were introduced in Australia. ## Activation and Requirements Hermes Messaging Service is an AI Platform feature activated by enabling the ServiceNow Stream Connect Installer plugin or installing the Log Export Service application across all releases from Xanadu to Australia. There are no new additional requirements, browser requirements, or localization changes introduced in these releases. ## Practical Considerations for Upgrading * Review and complete pre- and post-upgrade tasks as advised before upgrading to Australia. * Leverage new features such as encryption at rest and IP-based access controls to enhance security post-upgrade. * Use the Hermes Settings page for streamlined configuration management after upgrading. * Utilize expanded topic limits to support growing integration and event handling needs. ## Expected Outcomes * Improved operational visibility and control over Hermes Messaging Service components and data usage. * Enhanced data security through encryption and access restrictions. * Greater flexibility and scalability in managing messaging topics and partitions. * Simplified management experience with role-based access and configuration interfaces. * Consistent activation process ensuring seamless access to Hermes features across releases. 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. {#dfrn3-hermesmessagingservice-summary__entry__2} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## New features Between your current release family and Australia, new features were introduced for Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__12} | Release | Release notes | |-|-| | Xanadu | [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. | | Yokohama | [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. | | Zurich | [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. | | Australia | [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. | [ ] ## Changes Between your current release family and Australia, some changes were made to existing Hermes Messaging Service features. {#dfrn3-hermesmessagingservice-summary__entry__22} | Release | Release notes | |-|-| | Xanadu | [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. | | Yokohama | No updates for this release. | | Zurich | 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. | | Australia | No updates for this release. | [ ] ## Removed Between your current release family and Australia, some Hermes Messaging Service features or functionality were removed. {#dfrn3-hermesmessagingservice-summary__entry__32} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## Deprecations Between your current release family and Australia, some Hermes Messaging Service features or functionality were deprecated. {#dfrn3-hermesmessagingservice-summary__entry__42} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## Activation information Review information on how to activate Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__52} | Release | Release notes | |-|-| | Xanadu | 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). | | Yokohama | 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). | | Zurich | 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). | | Australia | 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). | [ ] ## Additional requirements If any additional requirements were introduced or changed for Hermes Messaging Service we have noted them here. {#dfrn3-hermesmessagingservice-summary__entry__62} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## Browser requirements If any specific browser requirements were introduced or changed for Hermes Messaging Service we have noted them here. {#dfrn3-hermesmessagingservice-summary__entry__72} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## Accessibility information Review details on accessibility information for Hermes Messaging Service, such as specific requirements or compliance levels. {#dfrn3-hermesmessagingservice-summary__entry__82} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | 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. | | Australia | No updates for this release. | [ ] ## Localization information If there are specific localization considerations for Hermes Messaging Service we have noted them here. {#dfrn3-hermesmessagingservice-summary__entry__92} | Release | Release notes | |-|-| | Xanadu | No updates for this release. | | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | [ ] ## Highlight information If there are specific highlight considerations for Hermes Messaging Service we have noted them here. {#dfrn3-hermesmessagingservice-summary__entry__102} | Release | Release notes | |-|-| | Xanadu | * 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. | | Yokohama | * 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. | | Zurich | * 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. | | Australia | * 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. | [ ]