diff --git a/modules/ROOT/pages/8.10.1-release-notes.adoc b/modules/ROOT/pages/8.10.1-release-notes.adoc
index 9038252327..536a76d12b 100644
--- a/modules/ROOT/pages/8.10.1-release-notes.adoc
+++ b/modules/ROOT/pages/8.10.1-release-notes.adoc
@@ -160,6 +160,13 @@ For information on using Enhanced Skins & Icon Packs, see: xref:enhanced-skins-a
 
 // CCFR here.
 
+=== The `+editor.insertContent+` API removed inline formatting when the selection covered the entire block content and the content was wrapped in an inline format element
+// #TINYMCE-11317
+
+Previously, when the selection covered all of the content in a block and an inline format element wrapped that content, the xref:apis/tinymce.editor.adoc#insertContent[`+editor.insertContent()+`] API removed the formatting. For example, selecting all of the text in `+<p><strong>I am bold</strong></p>+` and inserting new text using the API produced plain text instead of bold.
+
+In {productname} {release-version}, the `+editor.insertContent()+` API preserves the inline formatting that wraps the whole selection.
+
 
 [[security-fixes]]
 == Security fixes