2025.R2 release communication

With recent releases, we have enabled new features incrementally and announced new software versions in the release notes.

This release communication summarizes the results of the last releases, providing an overview of what is now — as of October 2025 — available for Bosch Semantic Stack.

2025.R2 at a glance

Included versions:

4.51.0, 4.52.0, 4.53.0, 4.54.0, 4.55.0, 4.56.0, 4.57.0, 4.58.0, 4.59.0

Digital Twin Registry (DTR):

Aspect Model Catalog (AMC):

2025.R2 (DTR)

Digital Twin Registry

Includes: DTR-7.16.4, DTR-7.16.5, DTR-7.16.7, DTR-7.16.8, DTR-7.16.9, DTR-7.16.10, DTR-7.16.11, DTR-7.16.12

Asset Administration Shell API 3.1 adoptions

The adoption of the new API version required the following updates:

  • Paging metadata is not optional anymore, but required.

  • The API description was changed.

  • The idShort pattern for write operations was updated.

Learn more: Asset Administration Shell API V3.1.0externallink 20

Patch operation for Asset Administration Shells

The Asset Administration Shell Digital Twin Registry has implemented a custom PATCH REST endpoint for Asset Administration Shells that enables partial updates to existing Shells according to the RFC 7396 JSON Merge Patchexternallink 20 standard.

Learn more: Update Asset Administration Shells via PATCH REST endpoint

Fine-grained access control for Shell groups and Shell labels

You can now restict the access to Shell goups and labels based on the newly implemented fine-grained access control rules.

Learn more: Restrict access to Asset Administration Shells

2025.R2 (AMC)

Aspect Model Catalog

Includes: AMC-2.7.32, AMC-2.7.33, AMC-2.7.35, AMC-2.7.36, AMC-2.7.37, AMC-2.7.38, AMC-2.7.39, AMC-2.7.40

You can now search for specific elements of Aspect Models via the Element search. You can also use the filter function and search for types of Aspect Model element, which makes the search and implementation of elements into Aspect Models much faster and easier.

License information for Aspect Models

You can now check out Aspect Models' license information when you open them in Aspect Model view and click the License button. This feature enables you to look up license information and figure out which Aspect Models you can use or build up other ones, based on them.

New adjustable parameters for OpenAPI generation

You can now adjust the following new parameters in the OpenAPI specification generation dialog:

  • Resource path – this feature enables you to seamlessly integrate your desired resource path in JSON format and conveniently input the properties needed for advanced configuration.

  • Activate Template – this feature enables you to customize your generated OpenAPI specification through a template in JSON format that contains templated Paths Object paths._ DEFAULT_QUERIES_TEMPLATE _.

  • Generate Comment For See attributes – this feature enables you to generate a $comment OpenAPI element for existing samm:see attributes in your Aspect Model.

Learn more: Aspect Model Catalog API documentation