Month: 2026-04 — Summary of contributions for microsoft/onnxruntime focused on WebNN Execution Provider quantization handling. Implemented changes to preserve DequantizeLinear and quantization metadata during optimization, reducing risk of information loss and improving model accuracy for quantized workloads. Added a dedicated session option to control DQ constant folding, and refined partitioning behavior to treat DQ/Q as separate nodes in WebNN EP. The work aligns with ongoing efforts to stabilize quantized WebNN integration and deliver reliable performance across quantized models.

Month: 2026-03 Repository: CodeLinaro/onnxruntime Overview: Implemented DepthToSpace support in WebNN for Visual Super-Resolution (VSR) models within ONNX Runtime, enabling the use of DepthToSpace by decomposing it into Reshape and Transpose for the WebNN backend. This work is captured in commit f3ecb241c18ef4dfd6fba84e1753bf4f1d163420, titled "[WebNN] Support DepthToSpace op (#27508)". Impact: Expands WebNN operator coverage, improving model portability and potential runtime performance for VSR workloads on WebNN-enabled environments. Note: No major bugs fixed were reported for this month based on the provided data.

September 2025: Focused on boosting inference throughput, stability, and WebNN coverage across two repos. Implemented a high-impact Whisper demo optimization in microsoft/webnn-developer-preview and added scalar constant MLOperands with typed values in web-platform-tests/wpt, backed by conformance tests and baseline updates. Also performed targeted bug fixes and quality improvements to support higher throughput and platform reliability.

Month: 2025-08 - Concise monthly summary focusing on key accomplishments, aligned with business value and technical achievements in the WebNN area within web-platform-tests/wpt.

July 2025 monthly summary for microsoft/webnn-developer-preview: Focused on reliability and correctness improvements in model loading and configuration parsing. Key fixes reduced misfetch risk and eliminated parsing errors, aligning with business goals of stable deployment and better developer experience.

April 2025 monthly summary: Focused on expanding WebNN conformance coverage for ConvTranspose2d in web-platform-tests/wpt. Delivered two new test cases to validate scenarios where padding and output_padding yield the same output size but different outputs, enabling detection of backend discrepancies (notably with TFLite and Core ML). This work strengthens cross-backend reliability and accelerates feedback to backend teams.

January 2025 monthly summary for web-platform-tests/wpt: Focused on expanding WebNN operator coverage with notEqual support and enhanced conformance/validation tests. Delivered notEqual operator in WebNN API with dedicated conformance tests for various tensor shapes and broadcasting, and updated validation tests to include notEqual among element-wise logical operators. This work improves reliability, portability, and test coverage for AI/ML workloads across platforms.

December 2024 monthly work summary for microsoft/webnn-developer-preview. Delivered Whisper GPU acceleration and robustness improvements, including configuration parsing refactor, ioBinding handling, and memory management to prevent leaks. The work enhances reliability and GPU-backed inference performance for the developer preview.

Month 2024-11: Delivered expanded WebNN runtime capabilities and iobinding enhancements that improve model deployment and inference performance in web environments, while increasing reliability through targeted bug fixes.