Find out what is new in Event Streams version 11.1.x.
Release 11.1.6
Migration to latest Apicurio Registry
Event Streams 11.1.6 includes support for Apicurio Registry 2.4.1. Ensure all applications connecting to Event Streams that use the schema registry are using Apicurio client libraries version 2.4.1 or later, then migrate to the latest Apicurio.
Security and bug fixes
Event Streams release 11.1.6 contains security and bug fixes.
Documentation: Highlighting differences between versions
Any difference in features or behavior introduced by Event Streams 11.1.6 compared to 11.1.5 or earlier is highlighted in this documentation by using the following graphic: 
Release 11.1.5
Kafka version upgraded to 3.4.0
Event Streams version 11.1.5 includes Kafka release 3.4.0, and supports the use of all Kafka interfaces.
Support for Event Streams CLI when using SCRAM authentication
Event Streams version 11.1.5 and later supports SCRAM authentication access to the Event Streams CLI.
Kafka users that have been configured to use SCRAM-SHA-512 authentication can log in to the Event Streams CLI and run commands based on the ACL permissions of the user. For more information, see managing access to the UI and CLI with SCRAM.
JMXTrans is deprecated
Support for JMXTrans in Event Streams version 11.1.5 and later is deprecated, as the JMXTrans tool is no longer maintained. For more information, see the Strimzi proposal about deprecating JMXTrans.
Support for OpenTelemetry with IBM Instana
Event Streams 11.1.5 introduces support for OpenTelemetry with IBM Instana to provide real-time insights into the performance and behavior of your event-driven applications.
Note: In IBM Cloud Pak for Integration 2022.4.1 and later, the integration tracing capability with the Operations Dashboard is deprecated. For more information, see the IBM Cloud Pak for Integration documentation.
Technology Preview features
Technology Preview features are available to evaluate potential upcoming features. Such features are intended for testing purposes only and not for production use. IBM does not support these features, but might help with any issues raised against them. IBM welcomes feedback on Technology Preview features to improve them. As the features are still under development, functions and interfaces can change, and it might not be possible to upgrade when updated versions become available.
IBM offers no guarantee that Technology Preview features will be part of upcoming releases and as such become fully supported.
Event Streams version 11.1.5 includes Apache Kafka Raft (KRaft) as a Technology Preview feature. KRaft replaces ZooKeeper for managing metadata, moving the overall handling of metadata into Kafka itself.
Find out more about enabling KRaft and its limitations for Event Streams.
Security and bug fixes
Event Streams release 11.1.5 contains security and bug fixes.
Documentation: Highlighting differences between versions
Any difference in features or behavior introduced by Event Streams 11.1.5 compared to 11.1.4 or earlier is highlighted in this documentation by using the following graphic: 
Release 11.1.4
Apicurio: set applications to use latest client libraries
Support for Apicurio client libraries version 2.3.x and earlier is deprecated. Ensure all applications connecting to Event Streams that use the schema registry are using Apicurio client libraries version 2.4.1 or later.
Kafka version upgraded to 3.3.1
Event Streams version 11.1.4 includes Kafka release 3.3.1, and supports the use of all Kafka interfaces.
Support for Red Hat OpenShift Container Platform 4.12
Event Streams 11.1.4 introduces support for Red Hat OpenShift Container Platform 4.12.
Security and bug fixes
Event Streams release 11.1.4 contains security and bug fixes.
Release 11.1.3
Support for Red Hat OpenShift Container Platform 4.12
Event Streams 11.1.3 includes support for Red Hat OpenShift Container Platform 4.12.
Security and bug fixes
Event Streams release 11.1.3 contains security and bug fixes.
Release 11.1.2
Event Streams release 11.1.2 contains security and bug fixes.
Release 11.1.1
Expanded feature support when using SCRAM authentication
Support for the following features is now available when using SCRAM authentication:
- If enabled, users can delete topics in the UI with the Topic Delete button in the overflow menu.
- The geo-replication feature is available for all users.
For more information, see managing access to the UI with SCRAM.
Security and bug fixes
Event Streams release 11.1.1 contains security and bug fixes.
Documentation: Highlighting differences between versions
Any difference in features or behavior introduced by Event Streams 11.1.1 compared to 11.1.0 or earlier is highlighted in this documentation by using the following graphic: 
Release 11.1.0
Kafka version upgraded to 3.2.3
Event Streams version 11.1.0 includes Kafka release 3.2.3, and supports the use of all Kafka interfaces.
Apicurio version updated to 2.3.1
Event Streams 11.1.0 includes Apicurio Registry version 2.3.1 for managing schemas.
Foundational services a prerequisite for flexibility
IBM Cloud Pak foundational services is now a prerequisite. Event Streams supports foundational services version 3.19.0 or later 3.x releases, providing support for both the Continuous Delivery (CD) and the Long Term Service Release (LTSR) version of foundational services (for more information, see the prerequisites).
Simplified installation and upgrade process
Event Streams 11.1.0 introduces automatic upgrade of Event Streams instances. The Event Streams operator deploys and manages only a single version of the Event Streams instance. When upgrading Event Streams, the operator upgrades instances to the version supported by the operator, so you no longer have to upgrade the instances separately.
Support for SCRAM authentication
Event Streams version 11.1.0 introduces support for SCRAM authentication access to the Event Streams UI (for more information, see configuring UI and CLI security). Kafka users that have been configured to use SCRAM-SHA-512 authentication can log in to the UI and access components based on the ACL permissions of the user.
Note: The following features are not available in this release of Event Streams when using SCRAM authentication:
- Metrics information and dashboards
- Geo-replication
- Event Streams CLI
Security and bug fixes
Event Streams release 11.1.0 contains security and bug fixes.