Combined Hermes Messaging Service release notes for upgrades from Vancouver to Xanadu

Consolidated page of all release notes for Hermes Messaging Service from Vancouver 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 Vancouver 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.

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	Improved diagnostics Check the status of the Hermes Kafka cluster including the instance Public Key Infrastructure (PKI) configuration, bootstrap connectivity, and the latest message timestamps for internal and external topics. Monitor topics in the Hermes Kafka cluster Check the status of Apache Kafka messages and topics using the Hermes Messaging Service topic explorer.
Washington DC	Improved security setup 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 Create, update, and delete topic namespaces in the Hermes Kafka cluster using Hermes Messaging Service. Manage topics Create, update, and delete topics in the Hermes Kafka cluster using Hermes Messaging Service. Rescan topics Synchronize topic records in your instance with the topics that belong to you in the Hermes Kafka cluster.
Xanadu	Monitor Hermes data usage 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.

Release	Release notes
Vancouver	View Hermes Messaging Service log messages View Hermes Messaging Service log messages in the Log [syslog] table.
Washington DC	No updates for this release.
Xanadu	Monitor topics in multiple cluster sets View messages from multiple cluster sets by selecting a service group in the Hermes Topic Inspector module. Test connectivity to multiple cluster sets 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.

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	No updates for this release.
Washington DC	No updates for this release.
Xanadu	No updates for this release.

Activation information

Review information on how to activate Hermes Messaging Service.

Release	Release notes
Vancouver	The Hermes Messaging Service 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.
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, seeHermes Messaging Service activation.
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.

Additional requirements

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

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	No updates for this release.
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.

Release	Release notes
Vancouver	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 for more information.
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 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 for more information.