April 2026 (2026-04) monthly summary for KittyCAD/modeling-app: The month focused on expanding modeling capabilities, improving documentation and code quality, and migrating core components to a more maintainable framework. Key features delivered include updated API docs for sketch and tag with improved readability and safeguards; a broader modeling library with new samples and geometries; a new dining table model with stability improvements; and migration of the contra-rotor module to a new sketching framework to boost modularity. While no explicit bug fixes were recorded, the efforts achieved notable stability enhancements and refactoring across samples and the architecture, enabling faster iteration, easier onboarding, and more robust aerospace components. Technologies demonstrated include API documentation, sample-driven development, framework migration, and modular architecture.

March 2026 monthly summary for KittyCAD/documentation: Documentation-focused sprint delivering two major features to support onboarding and AI-enabled CAD workflows. No major bugs fixed this month. Business impact includes clearer AI-assisted workflow guidance, improved user onboarding, and a scalable content strategy for future documentation updates.

February 2026—KittyCAD/modeling-app: Focused on reducing technical debt and improving modeling reliability through a code refactor and modeling logic enhancements. Delivered a streamlined codebase, optimized hole positioning and extrusion logic, and eliminated redundant elements to boost maintainability and future velocity. No separate bug-fix sprint; primary gains are maintainability, readability, and modeling robustness that enable faster future feature delivery.

December 2025: Delivered consolidated Extrude Modeling Enhancements in KittyCAD/modeling-app, with code refinements, tests, and tooling updates that improve modeling flexibility and maintainability, aligning with the product strategy to empower faster and more accurate extrusion workflows.

2025-11 monthly summary for KittyCAD/modeling-app. Delivered stability improvements in geometry editing, expanded modeling capabilities, and code quality enhancements, driving better precision, risk reduction, and maintainability.

October 2025 monthly summary for KittyCAD/modeling-app: Delivered two core feature improvements that enhance modeling workflow and quality checks. Selection management improvements now clear existing selections before applying a new one in SelectionMixed and coerce edge/face selections to their parent body artifacts, reducing mis-selections and improving command reliability. Implemented flatness GDT annotations on faces with create/edit/delete capabilities, UI enhancements (command bar), AST modification logic, vector2d input support, and refined edge tagging for chamfers and fillets, backed by extensive testing. These changes improve artifact graph traversal robustness and reduce iteration time for designers. Overall impact: more reliable selections, more precise geometric annotations, faster task completion, and stronger quality controls. Technologies/skills demonstrated: UI/UX workflow improvements, AST manipulation, vector2d input parsing, robust testing.

Month: 2025-09 — KittyCAD/modeling-app: Delivered substantial 3D patterning capabilities, DXF export, and UI/Command Bar enhancements with strong test coverage. Major bugs fixed: none reported this month. Overall impact: Accelerated design automation, improved interoperability with DXF workflows, and enhanced user experience for patterning tasks across circular and linear arrays. Technologies/skills demonstrated: 3D pattern generation, end-to-end testing, UI integration, browser/desktop export handling, Vector3D and array inputs, and test snapshot maintenance.

June 2025 monthly summary for KittyCAD/modeling-app focused on robustness and risk reduction in the Sketch AST tagging feature. Delivered a critical edge-case fix ensuring proper tagging of close sketch segments even when the last edge is implicit, with dedicated tests and snapshot updates to prevent regressions.

May 2025 monthly summary for KittyCAD/modeling-app: Delivered major feature enhancements to point-and-click editing and edge-treatment handling, plus improvements to KCL samples. These changes deliver faster, more reliable editing workflows and better onboarding for users and developers. Highlights include extending point-and-click editing to non-pipe Chamfer and Fillet operations with AST-aware edits; cleanup of edge treatments to remove a deprecated warning and ensure correct deletion across all cases; and addition/refinement of KCL samples for a spinning high-rise tower with improved readability via typo fixes. These efforts improve design iteration speed, reduce edge-treatment error surfaces, and strengthen end-to-end testing and documentation.

Month: 2025-03 — Key features delivered: Implemented Modeling Workflows module in KittyCAD/modeling-app to enable resilient state updates, ensuring editor and file updates continue even if the 3D engine encounters errors. Major bugs fixed: No major bugs fixed this month. Overall impact and accomplishments: Increased reliability and robustness of modeling state management, reducing editor downtime and accelerating iteration cycles. Technologies/skills demonstrated: state management patterns, resilience testing, test-driven development, and commit-level traceability.

February 2025 monthly summary for KittyCAD/modeling-app. Delivered key features and fixed critical bugs, driving improved user workflows and code maintainability. Highlights include UI for point-and-click deletion of fillets/chamfers, dependency-injection refactor to remove cyclic dependencies, shift-click multi-select with full test coverage, and enhanced sweep extrude selection accuracy; plus targeted bug fixes for deselection and second-body extrude selection.

January 2025 monthly summary for KittyCAD/modeling-app. Focused on delivering asynchronous workflow improvements, UI-integrated modeling features, and test-suite stability to drive faster, higher-quality releases. This work enhances responsiveness in modeling operations, strengthens AST-based modification capabilities, and improves cross-platform reliability for tests.

December 2024: Delivered Geometric Edge Treatment API with Chamfer Support for KittyCAD/modeling-app. Refactored the existing fillet functionality into a generalized addEdgeTreatment API, enabling chamfer support. Implemented codebase changes including renaming addFillet to addEdgeTreatment for consistency, updated tests, and adapted the modeling pipeline to support edge treatments. This work reduces API fragmentation, improves modeling fidelity, and sets the foundation for advanced edge-treatments in upcoming sprints. Maintained strong code quality with clear commit messages and test coverage.

2024-11 Monthly Summary for KittyCAD/modeling-app: Focused on delivering a robust feature: Fillet support in extrusions within the sketch pipe, plus refactoring and tests to support the extended workflow.