DOC-3132: The semantics element in MathML was not properly retained when annotation elements was allowed. (#3609)

* DOC-3132: The  element in MathML was not properly retained when  elements was allowed.

* Update modules/ROOT/pages/7.7.0-release-notes.adoc

Co-authored-by: Karl Kemister-Sheppard <karlkemistersheppard@gmail.com>

---------

Co-authored-by: Karl Kemister-Sheppard <karlkemistersheppard@gmail.com>

Author: abhinavgandham

modules/ROOT/pages/7.7.0-release-notes.adoc

@@ -196,6 +196,13 @@ the help dialog would not open if the plugin was disabled, leading to confusion.
 
 {productname} {release-version} addresses this issue by ensuring that if the help plugin is disabled, the screen reader announces only "Rich Text Area." If the help plugin is enabled, the screen reader announces "Rich Text Area. Press `ALT-0` for help.".
 
+=== The `semantics` element in MathML was not properly preserved when `annotation` elements were allowed.
+// #TINY-11755
+
+Previously, in {productname}, an issue was identified in which the `semantics` MathML element was removed, even when a specific annotation element was allowed by the `allow_mathml_annotation_encodings` property. As a result, the generated MathML was invalid because the annotation element must be a child of a `semantics` element. This also caused rendering issues in some browsers.
+
+In {productname} {release-version}, this issue has been resolved by preserving the `semantics` element whenever the `allow_mathml_annotation_encodings` property is set to a non-empty array. This ensures that valid MathML is generated, improving compatibility with third-party tools and browser rendering.
+
 === Toolbar groups had both a `title` attribute and a custom tooltip, causing overlapping tooltips
 // #TINY-11768