Software Patches

December 5, 2025

Features and Improvements

  • Transient Stability: In TS the Transient Contingency Elements case info display now supports filtering. Also contingency elements can now have an "Object Value" and "Object Value Description" fields which provide information about contingency pertinent object values. For example, for opening a generator this fields show's the generators current MW output.
  • Bug Fixes

    • Integrated Topology Processing (ITP): The maximum bus mismatch fields available with the PWCaseInformation object will now be populated regardless of the solution options for topology processing and solving islands. This additionally fixes issues that the 12/2/25 patch was trying to fix by not showing these values.
    • Transient Stability: When writing out aggregate _cmpldw models to a DYD file we now properly write a reference to a to cmp_der_a models if they have been specified
    • Transient Stability: When writing out aggregate _cmpldw2 models to a DYD file we were missing the fraction assigned to the cmp_der_a model. This has been added. The reading of these records was always working correctly.