March 2025 monthly summary for flexcompute/tidy3d: Hardened 2D projection validation to prevent invalid configurations and added regression tests; improved reliability and alignment with current capabilities. The work reduces misconfigurations in 2D simulations and strengthens product quality.

January 2025: Focused on improving documentation quality and developer experience in flexcompute/tidy3d-notebooks. Delivered targeted readability improvements for the AntennaCharacteristic notebook, ensured API reference links render correctly, and clarified mathematical notation to reduce confusion. These changes enhance on-boarding, reduce support overhead, and improve overall maintainability.

December 2024 performance summary: Delivered core API improvements for radiation analysis in tidy3d and enabled end-to-end patch-antenna evaluation through new Jupyter notebooks. Focused on simplifying data modeling, improving computation of radiation characteristics, and providing reproducible analysis workflows within Tidy3D tooling.

November 2024 delivered a major mode solver enhancement for flexcompute/tidy3d, focused on accuracy improvements for bent geometries. Implemented bend_angle_rotation for scenarios with bend_radius and angle_theta, refactored the solver to support rotated structures, and added robust Cartesian↔ cylindrical coordinate transformations. Introduced ScalarModeFieldCylindricalDataArray to underpin these calculations, enabling more reliable bent-geometry simulations. No critical bugs fixed this month; primary emphasis on feature delivery, code quality, and extendability.