March 2026: Focused on reliability improvement in the powsybl-open-loadflow module. Delivered a critical bug fix to ensure consistent target voltage validation and reporting in the Power Network Simulation, addressing inconsistencies that could affect voltage control validation and downstream reporting. This fix reduces risk of misreported target voltages and improves model fidelity for operators relying on accurate voltage control. The change enhances simulation stability and supports better decision-making in network operation and planning. Work was tracked via a signed-off commit and collaboration with contributors.

September 2025 (2025-09) monthly summary for powsybl-open-rao focused on stabilizing NC CRAC Importer. Delivered a targeted bug fix that corrects error messaging and data validation for topological actions, aligning ValueOffsetKind and RelativeDirectionKind with importer expectations and clarifying failure reasons. These changes improve data quality, reduce import failures, and shorten troubleshooting cycles for users importing NC/CRAC data. Work completed with traceable changes in commit ab1290e2cce067c051a4dee10095faadf5437fce.