Pilot Implementation
This is an maintenance release of the pilot implementation of the SysML v2 language. It corrects a bug that was inadvertently caused by changes made in the 2025-09 release.
Updated release notes for the language implementation are available at
The API and Services Pilot Implementation and API Cookbook are unchanged from the 2025-02 release:
The release also includes three versions of the standard model libraries:
sysml.library– textual notationsysml.library.xmi- XMI representation, without derived property values or implied relationshipssysml.library.xmi.implied- XMI representation, without derived property values but with implied relationships
Note. The XMI files (.kermlx and .sysmlx) use an Eclipse XMI representation that is not fully normative OMG XMI.
To install, download and decompress one of the files below and follow the instructions in the README file.
Note. Even though the files below are labeled "Source code", they simply contain the entire compressed contents of this repository. They do not actually include the pilot implementation source code, which is maintained in separate development repositories.
Issue Resolutions
This release includes formal versions of the KerML 1.0, SysML 2.0 and Systems Modeling API 1.0 specification documents These are the final versions of these documents.
Revision Task Forces (RTFs) have now been established for KerML 1.1, SysML 2.1 and Systems Modeling API & Services 1.1. However, these task forces have not yet approved any issue resolutions. As resolutions are approved, they will be implemented in future releases, which will include corresponding beta versions of the updated specification documents.