Combined Hermes Messaging Service release notes for upgrades from Yokohama to Zurich

  • Release version: Zurich
  • Updated August 11, 2026
  • 3 minutes to read
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    Summary of Combined Hermes Messaging Service release notes for upgrades from Yokohama to Zurich

    This consolidated release notes page provides ServiceNow customers with a comprehensive view of all changes, new features, and important upgrade information for the Hermes Messaging Service when upgrading from the Yokohama release family to the Zurich release family. It is designed to help you prepare and understand what to expect during and after your upgrade.

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    New features

    • From Yokohama release:
      • Topic audit history: Track changes made to Hermes topics by viewing audit information.
      • Search for messages in a topic: Use keywords or regular expressions to filter messages within topics via the Hermes topic inspector.
      • Improved diagnostics: Monitor the health of Hermes components over time to ensure operational stability.
    • New in Zurich release:
      • Hermes Usage Dashboard: Monitor data usage by application and track data per topic.
      • Synchronize topic partition count: Verify partition count synchronization across Hermes clusters for consistency.

    Changes, Removed features, Deprecations

    There are no changes, removals, or deprecations for Hermes Messaging Service features between Yokohama and Zurich releases. This means all existing functionalities continue to be supported without modification or discontinuation.

    Activation information

    Hermes Messaging Service is a ServiceNow AI Platform feature that requires activation via the ServiceNow Stream Connect Installer plugin (com.glide.hub.streamconnect.installer) or installation of the Log Export Service application. This applies for both Yokohama and Zurich releases. Refer to activation documentation specific to your release for detailed steps.

    Additional requirements and browser accessibility

    There are no new or changed additional requirements, browser requirements, accessibility considerations, or localization details introduced between Yokohama and Zurich releases.

    Key outcomes for ServiceNow customers

    • Enhanced ability to audit and inspect Hermes topics and messages improves operational transparency and troubleshooting.
    • Advanced diagnostics and data usage monitoring enable proactive system health management and capacity planning.
    • Partition synchronization ensures data consistency across Hermes clusters, supporting reliable messaging workflows.
    • Seamless upgrade path without feature removal or deprecation reduces risk and disruption.
    • Clear activation path ensures you can enable Hermes Messaging Service features effectively.

    Consolidated page of all release notes for Hermes Messaging Service from Yokohama to Zurich.

    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 Zurich.

    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 Zurich

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    New features

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

    Release Release notes

    Yokohama
    Topic audit history
    Track changes made to a Hermes topic by viewing the topic's audit information.
    Search for messages in a topic
    Filter messages in a topic using keywords or regular expressions in the Hermes Messaging Service topic inspector.
    Improved diagnostics
    Monitor the health of Hermes components over time.

    Zurich
    Monitor Hermes data usage
    Monitor data usage by application and track data usage by topic using the Hermes Usage Dashboard.
    Synchronize topic partition count
    Verify that the partition count is synchronized between topics in Hermes clusters.

    Changes

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Removed

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Deprecations

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Activation information

    Review information on how to activate Hermes Messaging Service.

    Release Release notes

    Yokohama

    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.

    Zurich

    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.

    Additional requirements

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 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.

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Accessibility information

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    Localization information

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

    Release Release notes

    Yokohama

    		 No updates for this release.

    Zurich

    		 No updates for this release.

    Highlight information

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

    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 for more information.

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

    See Hermes Messaging Service for more information.