GraphDB 11.3.0 Release Notes

19/02/2026

GraphDB 11.3 introduces major new features and critical bug fixes, including a significant update to the look and usability of the GraphDB Workbench. Key updates include backup validation to confirm when a backup has been successful, support for multiple MCP versions, the ability for URL links to change the active repository in the GraphDB Workbench, and further improvements to the new native Python client introduced in GraphDB 11.2. To improve stability and performance, this release also fixes several major bugs affecting the SPARQL editor, as well as compliance issues when subtracting two dates, which should now return xs:dayTimeDuration as prescribed by the SPARQL specification.

Additionally, GraphDB 11.3 includes numerous other bug fixes and smaller improvements, enhancing overall product stability and user experience. The versions of several external components and connectors have also been updated, and some migration steps may be necessary to ensure your GraphDB deployment is working properly after upgrading to 11.3 — check the Migrating GraphDB configurations page for more details.

The development of the features in this release was partially funded by the EnrichMyData (GA nu: 101070284) Horizon Europe research project.

A more accessible Workbench with a fresh new look
The GraphDB Workbench has been updated to reflect our rebranding to Graphwise with new brand colors and a cleaner, more intuitive design. While the layout and functionality of the Workbench largely remain the same, it is now possible to change the active repository in GraphDB by loading a link, making collaborative work between different GraphDB instances easier. Lastly, we have also expanded the list of officially supported browsers, which now includes Safari and Microsoft Edge.
Improved backup fetching
GraphDB now informs you whether your backup has been successfully processed. The engine now also includes a mechanism that prevents attempts to apply a corrupt or incomplete backup.
Enhanced MCP support
GraphDB 11.3 significantly expands its Model Context Protocol (MCP) capabilities by adding support for multiple MCP versions, including the latest 2025-11-25 standard. Developers now also have the option to choose between legacy SSE and the new Streamable HTTP transport. This flexibility allows you to optimize for high-concurrency environments and handle resource exhaustion.
This change also breaks any existing MCP configuration. Check the Migrating GraphDB configurations page for more details.
Advanced vector search in Elasticsearch and OpenSearch
You can now create vector fields in nested objects in the Elasticsearch and OpenSearch connectors for more nuanced and complex similarity searches within your knowledge graph.

Warning

A bug in GraphDB 11.3 may affect deployments which use the Custom user roles mechanism.

Creating and editing user through the Workbench in GraphDB 11.3 may cause a critical malfunction for features using custom user roles, such as Access control list in Fine-grained access control and Role-Based Access Control in GraphQL. When a CUSTOM role is defined for a user, editing that user through the Workbench will incorrectly save the group with an additional CUSTOM_ prefix. This will happen when any of that user’s attributes were modified and saved, even if the CUSTOM role itself was not changed.

An additional CUSTOM_ prefix is also erroneously shown in the users list view in the Workbench; however, if the user configurations have not been edited, it will not affect any other functionalities.

This bug is present only when editing users through the GraphDB Workbench. If you need to edit a user’s configurations in GraphDB 11.3.0, do not use the Workbench. You can safely use the GraphDB REST API instead, as it will not cause any issues.

If you encounter this bug, you can fix the issue by removing the additional CUSTOM_ prefix from the group through the REST API.

This bug will be fixed in GraphDB 11.3.1 which will be released as soon as possible..

New features and improvements

GDB-13563 Add support for the Ontop configuration keys that are not yet supported in the GraphDB Ontop integration
GDB-13547 Introduce a mechanism to ensure a backup is successful before applying it
GDB-13289 Add system predicates which fetch graphs names and statement counts
GDB-13523 Add support for LDAP group prefix/suffix

Bug fixing

	Description	Introduced	Severity
GDB-13674	When using a GraphDB Free license and the maximum number of repositories is reached, attempting to edit a repository results in a “No valid license” error	11.0	Medium
GDB-13639	Running an “Explain query plan” from the SPARQL editor button results in an error	11.2.1	Major
GDB-13606	Subtraction of two dates does not comply with the SPARQL specification and returns `xs:duration` instead of `xs:dayTimeDuration`	9.x	Major
GDB-12390	Renaming a repository to the same name as an existing repository returns the wrong error message		Minor
GDB-5053	The GraphDB Optimizer incorrectly evaluates functions used inside `BIND/Extension` parts of nested queries once	9.x	Medium

Vulnerability	Severity
CVE-2026-1225	1.8 Low

	Description	Introduced	Severity
GDB-13690	PropertyRangeValidator fails to validate property range covariant if the range type does not exist	11.0	Medium

New features and improvements

GDB-13582 Add WebMvcStreamableServerTransportProvider and update the default MCP transport configuration
GDB-13559 Upgrade the distributed MCP server to the latest version of the protocol MCP version 2025-11-25
GDB-13356 Update and optimize the Talk to your graph UI with a new response for similarity indexes

Bug fixing

	Description	Introduced	Severity
GDB-13178	After canceling a prompt, the explain button on the previous prompt stops working	11.2	Minor

New features and improvements

GDB-13263 Display a more meaningful message when attempting to perform a similarity query on a non-vector field in Elasticsearch
GDB-12072 Improve error message when max clause count is reached in Lucene

Bug fixing

	Description	Introduced	Severity
GDB-13486	Cannot create a vector field from a nested object field in Elasticsearch and OpenSearch	11.2	Medium
GDB-13327	`graphdb.opensearch.connector.knn_k` returns an inconsistent number of results with simple OpenSearch vector queries	11.2	Medium

New features and improvements

GDB-13302 Redesign the GraphDB Workbench to reflect our rebranding to Graphwise
GDB-12488 Add a copy button for the Explain plan of a SPARQL query
GDB-5601 Introduce a repository URL parameter that changes the active repository in GraphDB when the link is opened in Workbench
GDB-5236 Truncate long node labels in the Visual Graph view

Bug fixing

	Description	Introduced	Severity
GDB-13763	Saved queries cannot be shared with users	11.2.1	Medium
GDB-13729	Untranslated message in the GraphDB Workbench JDBC during query preview	11.2	Minor
GDB-13662	Status bar is displayed in black and white when using Workbench in Firefox		Medium
GDB-13646	REST API with dark mode is hard to read when logging in on the view	11.2	Minor
GDB-13644	Class relationship view sometimes renders multiple diagrams on top of each other		Medium
GDB-13625	Repository selector icon disappears when the Workbench is loaded in multiple tabs		Minor
GDB-13548	Expansion ratio is returned without decimal values	11.1	Medium
GDB-13542	The login button is displaced when OpenID Connect and Basic Authentication are both enabled	11.2.1	Minor
GDB-13493	Embedded Visual Graph does not work	10.7	Medium
GDB-13473	The Resource filter disappears when the browser window is resized		Minor
GDB-13409	When the Workbench is loaded in two separate tabs, changing the active repository in one tab results in an error in the other	11.1	Medium
GDB-13165	Unwanted requests to the backend when permission banner is shown	11.2	Medium

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