April 2026 (Month: 2026-04): Focused on improving developer experience and API documentation quality within powsybl-core. The primary deliverable was a corrected Javadoc example in ShuntCompensatorAdder that now accurately reflects how to instantiate a ShuntCompensator, aligning documentation with the implemented API. This change reduces onboarding friction and support queries without impacting runtime behavior.

March 2026 focused on strengthening testing, data anonymization robustness, and visualization fidelity across two core repos. Major efforts improved test organization, data anonymization across imports/exports and extensions, enhanced SLD visualization for fictitious injections, and modernization of CI/CD workflows. These changes reduce risk, accelerate development, and improve cross-version compatibility and product reliability.

This month (Feb 2026) delivered code improvements and usability enhancements in powsybl-core, focusing on simplifying APIs, aligning IIDM with updated schemas, improving configuration ergonomics, and cleaning up documentation. Delivered features include AmplNetworkReader.read refactor to use Consumer, IIDM tag rename to shuntCompensator with backward compatibility tests, PlatformConfig convenience methods for optional module properties with defaults, and documentation cleanup for SecurityAnalysisFactoryImpl references. No major bugs fixed, indicating a stable release with reduced maintenance burden. Impact: reduces cognitive complexity for developers and improves configuration UX, with tests ensuring backward compatibility and clearer documentation. Technologies demonstrated: Java functional interfaces (Consumer), API usability improvements, backward compatibility testing, documentation improvements, and configuration ergonomics.