Software Patches

July 30, 2026

Bug Fixes

  • Optimal Power Flow (OPF): The OPFPFUpdate and OPFPFUpdateGenChange fields in OPF_Options were left out as enterable fields. This has been corrected. The description of these two fields have been updated to be clearer -- "Power Flow Recalculation Criteria", and "Power Flow Recalculation Gen MW Change Threshold in per unit" respectively.
  • Power Flow Solution: Voltage Droop Control had a bug in which when a regulated bus was set and saved in the case it will not re-open with the
    regulated bus in the voltage droop control. This was fixed.
  • Time Step Simulation: With the Time Step Simulation change the time zone offset on the Options page also shifted the UTC times.
  • Transient Stability: Fixed messages for validation of REPC_D model allowed configurations.