Software Patches

September 22, 2026

Features and Improvements

  • Auxiliary Files (SCRIPT and DATA Sections): Added a new script command LogAddDateTimeISO8601Action("label", includedate, includetime, includemilliseconds); which is similar to LogAddDateTimeAction except it writes the datetime in UTC using ISO8601 format
  • Auxiliary Files (SCRIPT and DATA Sections): Added a new script command CaseSummaryGet("PWBFileName", "OutputFileName", DetailLevel); which exports the case information to a filename (or the message log if OutputFileName is blank) for various levels of detail: DetailLevel=0 is just the description and numbers of buses; 1 includes total generation and load, case comments and more record counts; 2 includes more info; and 3 includes the highest level of detail. This writing out the kinds of information available in the File Browser inside the GUI in PowerWorld Simulator.
  • Auxiliary Files (SCRIPT and DATA Sections): Added a new script command CaseDirectorySummaryGet("PWBFileDirectory", IncludeSubDirectories, "OutputFileName", DetailLevel); This script command is very similar to CaseSummaryGet except it will export all this information for all PWB files contained in the PWBFileDirectory. If PWBFileDirectory is blank it will use the current case directory. If IncludeSubDirectories = YES then it will also search subdirectories (default behavior is NO). If OutputFilename is blank it will write to the message log. These commands are intended to export information in a format for consumption by an AI tool to help search a group of PWB files.
  • Case Information Displays: Adding Area/Zone, Device and Advanced filtering to VSCDCLines
  • General: When unlocking Simulator with a networked hardware key, the "Choose Licenses" dialog is unnecessary if the only features are Simulator Base and SimAuto, so the dialog has been removed.
  • Transient Stability: Added support for reading the PERC1 as a stand-alone model in DYD format.
  • User Interface Dialogs: For File Broswer added support for showing 1) number of contingencies, 2) case timestamp, and 3) pwb file save time in UTC.
  • Bug Fixes

    • General: Fixed crash when specifying on a VoltageDroopControl object a regulated Bus that does not exist.
    • GIC: Simplifying the handling of transformer vector groups, changing how they are displayed for the GICXformers.