--- sourceDocument: xanadu Combined Product Files sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/delta-washingtondc-xanadu Release : - xanadu ft:locale : - en-US ft:publication_title : - xanadu Combined Product Files ft:clusterId : - delta3xw bundleId : - delta3xw --- # Combined Hermes Messaging Service release notes for upgrades from Washington DC to Xanadu # Combined Hermes Messaging Service release notes for upgrades from Washington DC to Xanadu {#ariaid-title1} * Release version: Xanadu * * Updated June 16, 2026 * * ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 4 minutes to read Consolidated page of all release notes for Hermes Messaging Service from Washington DC to Xanadu. ## 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 Washington DC to Xanadu. 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 Xanadu Before you upgrade to Xanadu, review these pre- and post-upgrade tasks and complete the tasks as needed. {#dfrn3-hermesmessagingservice-summary__entry__2} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | No updates for this release. | [ ] ## New features Between your current release family and Xanadu, new features were introduced for Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__8} | Release | Release notes | |-|-| | Washington DC | [Improved security setup](https://www.servicenow.com/docs/access?context=set-up-secure-connection-to-hermes&family=washingtondc&ft:locale=en-US) : Generate certificates for secure connections to Hermes Messaging Service, revoke certificates, and apply ACLs to certificates using the Hermes Messaging Service certificate generator. [Manage topic namespaces](https://www.servicenow.com/docs/access?context=managing-namespaces-hermes&family=washingtondc&ft:locale=en-US) : Create, update, and delete topic namespaces in the Hermes Kafka cluster using Hermes Messaging Service. [Manage topics](https://www.servicenow.com/docs/access?context=managing-topics-hermes&family=washingtondc&ft:locale=en-US) : Create, update, and delete topics in the Hermes Kafka cluster using Hermes Messaging Service. [Rescan topics](https://www.servicenow.com/docs/access?context=rescan-topics-hermes&family=washingtondc&ft:locale=en-US) : Synchronize topic records in your instance with the topics that belong to you in the Hermes Kafka cluster. | | 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. | [ ] ## Changes Between your current release family and Xanadu, some changes were made to existing Hermes Messaging Service features. {#dfrn3-hermesmessagingservice-summary__entry__14} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | 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. | [ ] ## Removed Between your current release family and Xanadu, some Hermes Messaging Service features or functionality were removed. {#dfrn3-hermesmessagingservice-summary__entry__20} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | No updates for this release. | [ ] ## Deprecations Between your current release family and Xanadu, some Hermes Messaging Service features or functionality were deprecated. {#dfrn3-hermesmessagingservice-summary__entry__26} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | No updates for this release. | [ ] ## Activation information Review information on how to activate Hermes Messaging Service. {#dfrn3-hermesmessagingservice-summary__entry__32} | Release | Release notes | |-|-| | Washington DC | Hermes Messaging Service is a ServiceNow AI Platform feature that is available with activation of the ServiceNow Stream Connect plugins (com.glide.hub.flow_trigger.kafka or com.glide.hub.action_step.kafka) 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=washingtondc&ft:locale=en-US). | | 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). | [ ] ## Additional requirements If any additional requirements were introduced or changed for Hermes Messaging Service we have noted them here. {#dfrn3-hermesmessagingservice-summary__entry__38} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | 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__44} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | 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__50} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | 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__56} | Release | Release notes | |-|-| | Washington DC | No updates for this release. | | Xanadu | 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__62} | Release | Release notes | |-|-| | Washington DC | * 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=washingtondc&ft:locale=en-US) for more information. | | 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. | [ ]