WPT details: WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts) that is regularly pulled into Chromium and part of the testing of Dawn/Tint in Chromium. While the CTS can be embedded in WPT, the WebGPU team opted to keep it separate in Chromium testing to use a customized harness for robustness and performance. All the tests about this feature in WebGPU CTS can be found through the below link: https://github.com/gpuweb/cts/pull/4310
Functionality added to the WebGPU spec after its first shipment in a browser. The GPUCommandEncoder copyBufferToBuffer() method now includes a simpler way to copy entire buffers using a new overload with optional offsets and size parameters.
To simplify the copy of entire buffers, a new overload has been added to the GPUCommandEncoder copyBufferToBuffer() method, allowing developers to omit offsets and size parameters. https://github.com/gpuweb/gpuweb/pull/5098