Overview
Axon Server 2025.2.0-EAP1 marks the first Early Access Program (EAP) release with full support for Dynamic Consistency Boundaries (DCB). This release introduces significant new capabilities for event tagging and includes important performance enhancements.
New Features
Event Re-tagging Support
This release introduces comprehensive support for re-tagging existing events, providing users with enhanced flexibility in event management:
Add new tags to existing events without modification of event data
Remove existing tags from events as needed
The re-tagging functionality is accessible through the Axon Server Connector for Java version 2025.2.0-EAP1, enabling seamless integration with existing applications.
DCB Performance Enhancements
Significant performance improvements have been implemented for Dynamic Consistency Boundaries compared to the 2025.1.x release series. These optimizations provide:
Enhanced processing speed for DCB operations
Improved resource utilization
Better scalability for high-throughput scenarios
UI Improvements
The following enhancements have been made to the Axon Server UI:
List view for the topology overview page
Search page: Keep Filter columns between the searches and Context switches
Breaking Changes
Important: The internal storage format for DCB contexts has been modified to achieve the performance improvements mentioned above.
Migration Impact:
DCB contexts created with Axon Server 2025.1.x are not compatible with this release
Users upgrading from 2025.1.x will need to recreate their DCB contexts
Standard event stores remain unaffected by this change
Compatibility
Axon Server Connector for Java: Requires version 2025.2.0-EAP1 or later for re-tagging functionality
DCB Contexts: Not backward compatible with 2025.1.x releases
Getting Started
To use the new re-tagging capabilities:
Upgrade to Axon Server 2025.2.0-EAP1
Update your Axon Server Connector for Java to version 2025.2.0-EAP1
Refer to the updated documentation for re-tagging operation examples
Important Notes
This is an Early Access Program release intended for testing and evaluation
DCB context recreation is required when upgrading from 2025.1.x
Feedback and bug reports are encouraged to help improve the final release
For technical support and questions regarding this EAP release, please consult the official documentation or contact the Axon support team through discuss.axoniq.io.
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