Add release note for mdn#11961

RELEASE_NOTES.md

@@ -31,6 +31,11 @@ Version 4.0.0 makes some potentially-breaking changes to improve the flexibility
 
 - Descendant features of `api.HTMLCanvasElement.getContext` and `api.HTMLCanvasElement.toBlob` have been reorganized to follow [the guideline for parameter object features](https://github.com/mdn/browser-compat-data/blob/main/docs/data-guidelines.md#parameters-and-parameter-object-features). See [the PR for a detailed list of features affected](https://github.com/mdn/browser-compat-data/pull/11234#issuecomment-900265901). ([#11234](https://github.com/mdn/browser-compat-data/pull/11234))
 
+- The following features were lower-cased for consistency with other feature names: ([#11961](https://github.com/mdn/browser-compat-data/pull/11961))
+
+  - `api.CanvasRenderingContext2D.drawImage.Smoothing_downscaling` (now `smoothing_downscaling`)
+  - `api.OfflineAudioContext.OfflineAudioContext.Parameters_accepted_in_an_object` (now `parameters_accepted_in_an_object`)
+
 - The following non-existent, long-removed, or otherwise irrelevant features have been removed:
 
   - `api.TouchList.identifiedTouch` ([#11760](https://github.com/mdn/browser-compat-data/pull/11760))