--- sourceDocument: brazil Combined Product Files sourceDocumentLink: https://www.servicenow.com/docs/r/delta-yokohama-brazil Release : - brazil ft:locale : - en-US ft:publication_title : - brazil Combined Product Files ft:clusterId : - delta3by bundleId : - delta3by --- # Combined Hermes Messaging Service release notes for upgrades from Yokohama to Brazil # Combined Hermes Messaging Service release notes for upgrades from Yokohama to Brazil {#ariaid-title1} Release version: Brazil Updated October 8, 2026 ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 7 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 Yokohama to Brazil This consolidated release notes document covers all updates to the Hermes Messaging Service from the Yokohama release through the Brazil release. It provides ServiceNow customers with a comprehensive view of new features, changes, activation details, and other important information to prepare for upgrading Hermes Messaging Service to Brazil. Show full answer Show less Hermes Messaging Service is a core ServiceNow AI Platform feature that supports asynchronous event streaming and messaging for enterprise workflows, enabling scalable message delivery across distributed systems with detailed usage tracking and secure message handling. ## Key Features Introduced * **Yokohama:** Added topic audit history for tracking changes, message search by keywords or regex, and improved diagnostics for monitoring component health. * **Zurich:** Introduced Hermes Usage Dashboard to monitor data usage by application and topic, synchronization of topic partition counts across clusters. * **Australia:** Added Hermes Settings page for managing configuration and background jobs, encryption at rest for Hermes topics with options for ServiceNow-managed or customer-supplied keys (BYOK), expanded topic limits, IP address access restrictions, and a view-only role for administrators. * **Brazil:** Enabled configurable topic retention periods for flexible data lifecycle management, simplified topic setup options, enhanced Application ID filtering with descriptive names and multi-filter support, explicit labeling of external topics, and long-term usage data tracking for trend analysis and capacity planning. ## Key Changes * **Zurich:** Adopted the Coral theme as default for portals and mobile/web experiences, including a dark theme option for better accessibility. * **Brazil:** Improved handling of topics without explicit Application IDs, extended accurate usage data queries beyond two months, and fixed topic namespace parsing issues to ensure reliable metrics collection. ## Activation and Requirements Hermes Messaging Service activation requires enabling the ServiceNow Stream Connect Installer plugin (com.glide.hub.streamconnect.installer) or installing the Log Export Service application. This applies consistently across all releases from Yokohama through Brazil. No additional upgrade-specific requirements, browser changes, or accessibility updates were introduced in the Brazil release beyond those noted in Zurich (dark theme support). ## Practical Benefits for ServiceNow Customers * Prepare for upgrade by reviewing pre- and post-upgrade tasks consolidated in this document. * Leverage enhanced monitoring, configuration, and security capabilities to maintain robust, compliant enterprise messaging workflows. * Utilize expanded topic management and retention controls to optimize storage and align with organizational policies. * Access detailed usage insights with improved filtering and labeling for better operational reporting and planning. * Benefit from a consistent activation process and improved user experience with the Coral theme and dark mode options. Consolidated page of all release notes for Hermes Messaging Service from Yokohama to Brazil. ## 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 Yokohama to Brazil. 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 Brazil Before you upgrade to Brazil, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-hermesmessagingservice-summary__entry__2} | Release | Release notes | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | No updates for this release. | [ ] ## New features Between your current release family and Brazil, new features were introduced for Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__12} | Release | Release notes | |-|-| | 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. | | Brazil | Configurable topic retention period : Define custom retention policies for Hermes topics directly within Hermes Topic Manager to enable flexible data lifecycle management aligned with organizational compliance requirements and storage optimization strategies. Simplified topic options : Streamline the administrative user interface with renamed and simplified topic options during topic setup and management.See [Monitoring data usage](https://www.servicenow.com/docs/access?context=monitoring-data-usage-hermes&family=brazil&ft:locale=en-US). Enhanced Application ID filtering : Improve usability with full descriptive names in the Application ID drop-down instead of abbreviated codes, and enable concurrent filtering across multiple Application IDs within a single usage query. Explicit external topic labeling : Distinguish external topics from internal topics in the Hermes usage dashboard to eliminate confusion during usage analysis and reporting of cross-organization messaging patterns. Long-term usage data tracking : Enable comprehensive trend analysis and capacity planning across longer time horizons with expanded usage data collection and retention infrastructure for enterprise messaging operations. | [ ] ## Changes Between your current release family and Brazil, some changes were made to existing Hermes Messaging Service features. {#dfrn3-hermesmessagingservice-summary__entry__22} | Release | Release notes | |-|-| | 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. | | Brazil | Empty Application ID handling : Topics created without an explicit Application ID are now correctly filtered and labeled in usage data queries. Previously, these topics would incorrectly appear in results when the "all values" filter selection was applied. Extended date range query processing : Usage data queries now return accurate results for date ranges exceeding two months. Previously, queries spanning more than two months would display incorrect or corrupted data, limiting historical analysis capabilities. Topic namespace parsing : Metrics collection now correctly parses Hermes topics without requiring explicit namespace definitions. This resolves parsing failures that previously occurred during topic analysis in the metrics collection pipeline. | [ ] ## Removed Between your current release family and Brazil, some Hermes Messaging Service features or functionality were removed. {#dfrn3-hermesmessagingservice-summary__entry__32} | Release | Release notes | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | No updates for this release. | [ ] ## Deprecations Between your current release family and Brazil, some Hermes Messaging Service features or functionality were deprecated. {#dfrn3-hermesmessagingservice-summary__entry__42} | Release | Release notes | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | No updates for this release. | [ ] ## Activation information Review information on how to activate Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__52} | Release | Release notes | |-|-| | 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). | | Brazil | Activation information : Hermes 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. | [ ] ## 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 | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | 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 | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | 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 | |-|-| | 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. | | Brazil | 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 | |-|-| | Yokohama | No updates for this release. | | Zurich | No updates for this release. | | Australia | No updates for this release. | | Brazil | 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 | |-|-| | 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. | | Brazil | * Delivers asynchronous event streaming and messaging capabilities for enterprise workflows. * Enables scalable message delivery across distributed systems with configurable retention policies. * Provides comprehensive usage tracking and reporting for messaging operations. * Supports integration with applications such as Instance Data Replication and Log Export Service. See [Hermes Messaging Service](https://www.servicenow.com/docs/access?context=hermes-messaging-service&family=brazil&ft:locale=en-US) for more information. | [ ]