diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 2140495e2..b3d36d170 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -84,6 +84,10 @@ interface AnimationPlaybackEventInit extends EventInit {
     timelineTime?: CSSNumberish | null;
 }
 
+interface AriaNotificationOptions {
+    priority?: AriaNotifyPriority;
+}
+
 interface AssignedNodesOptions {
     flatten?: boolean;
 }
@@ -3659,6 +3663,11 @@ interface ARIAMixin {
     role: string | null;
 }
 
+interface ARIANotifyMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/ariaNotify) */
+    ariaNotify(announcement: string, options?: AriaNotificationOptions): void;
+}
+
 /**
  * The **`AbortController`** interface represents a controller object that allows you to abort one or more Web requests as and when desired.
  *
@@ -13011,7 +13020,7 @@ interface DocumentEventMap extends GlobalEventHandlersEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document)
  */
-interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
+interface Document extends Node, ARIANotifyMixin, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
     /**
      * The **`URL`** read-only property of the Document interface returns the document location as a string.
      *
@@ -14045,7 +14054,7 @@ interface ElementEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element)
  */
-interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
+interface Element extends Node, ARIAMixin, ARIANotifyMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
     /**
      * The **`Element.attributes`** property returns a live collection of all attribute nodes registered to the specified node. It is a NamedNodeMap, not an Array, so it has no Array methods and the Attr nodes' indexes may differ among browsers. To be more specific, attributes is a key/value pair of strings that represents any information regarding that attribute.
      *
@@ -45138,6 +45147,7 @@ type AlphaOption = "discard" | "keep";
 type AnimationPlayState = "finished" | "idle" | "paused" | "running";
 type AnimationReplaceState = "active" | "persisted" | "removed";
 type AppendMode = "segments" | "sequence";
+type AriaNotifyPriority = "high" | "normal";
 type AttestationConveyancePreference = "direct" | "enterprise" | "indirect" | "none";
 type AudioContextLatencyCategory = "balanced" | "interactive" | "playback";
 type AudioContextState = "closed" | "interrupted" | "running" | "suspended";
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index 45ec977fd..d281230b6 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -81,6 +81,10 @@ interface AnimationPlaybackEventInit extends EventInit {
     timelineTime?: CSSNumberish | null;
 }
 
+interface AriaNotificationOptions {
+    priority?: AriaNotifyPriority;
+}
+
 interface AssignedNodesOptions {
     flatten?: boolean;
 }
@@ -3656,6 +3660,11 @@ interface ARIAMixin {
     role: string | null;
 }
 
+interface ARIANotifyMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/ariaNotify) */
+    ariaNotify(announcement: string, options?: AriaNotificationOptions): void;
+}
+
 /**
  * The **`AbortController`** interface represents a controller object that allows you to abort one or more Web requests as and when desired.
  *
@@ -13000,7 +13009,7 @@ interface DocumentEventMap extends GlobalEventHandlersEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document)
  */
-interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
+interface Document extends Node, ARIANotifyMixin, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
     /**
      * The **`URL`** read-only property of the Document interface returns the document location as a string.
      *
@@ -14034,7 +14043,7 @@ interface ElementEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element)
  */
-interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
+interface Element extends Node, ARIAMixin, ARIANotifyMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
     /**
      * The **`Element.attributes`** property returns a live collection of all attribute nodes registered to the specified node. It is a NamedNodeMap, not an Array, so it has no Array methods and the Attr nodes' indexes may differ among browsers. To be more specific, attributes is a key/value pair of strings that represents any information regarding that attribute.
      *
@@ -45112,6 +45121,7 @@ type AlphaOption = "discard" | "keep";
 type AnimationPlayState = "finished" | "idle" | "paused" | "running";
 type AnimationReplaceState = "active" | "persisted" | "removed";
 type AppendMode = "segments" | "sequence";
+type AriaNotifyPriority = "high" | "normal";
 type AttestationConveyancePreference = "direct" | "enterprise" | "indirect" | "none";
 type AudioContextLatencyCategory = "balanced" | "interactive" | "playback";
 type AudioContextState = "closed" | "interrupted" | "running" | "suspended";
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index aca3db87f..070fbcd11 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -81,6 +81,10 @@ interface AnimationPlaybackEventInit extends EventInit {
     timelineTime?: CSSNumberish | null;
 }
 
+interface AriaNotificationOptions {
+    priority?: AriaNotifyPriority;
+}
+
 interface AssignedNodesOptions {
     flatten?: boolean;
 }
@@ -3656,6 +3660,11 @@ interface ARIAMixin {
     role: string | null;
 }
 
+interface ARIANotifyMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/ariaNotify) */
+    ariaNotify(announcement: string, options?: AriaNotificationOptions): void;
+}
+
 /**
  * The **`AbortController`** interface represents a controller object that allows you to abort one or more Web requests as and when desired.
  *
@@ -13008,7 +13017,7 @@ interface DocumentEventMap extends GlobalEventHandlersEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document)
  */
-interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
+interface Document extends Node, ARIANotifyMixin, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
     /**
      * The **`URL`** read-only property of the Document interface returns the document location as a string.
      *
@@ -14042,7 +14051,7 @@ interface ElementEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element)
  */
-interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
+interface Element extends Node, ARIAMixin, ARIANotifyMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
     /**
      * The **`Element.attributes`** property returns a live collection of all attribute nodes registered to the specified node. It is a NamedNodeMap, not an Array, so it has no Array methods and the Attr nodes' indexes may differ among browsers. To be more specific, attributes is a key/value pair of strings that represents any information regarding that attribute.
      *
@@ -45135,6 +45144,7 @@ type AlphaOption = "discard" | "keep";
 type AnimationPlayState = "finished" | "idle" | "paused" | "running";
 type AnimationReplaceState = "active" | "persisted" | "removed";
 type AppendMode = "segments" | "sequence";
+type AriaNotifyPriority = "high" | "normal";
 type AttestationConveyancePreference = "direct" | "enterprise" | "indirect" | "none";
 type AudioContextLatencyCategory = "balanced" | "interactive" | "playback";
 type AudioContextState = "closed" | "interrupted" | "running" | "suspended";
diff --git a/baselines/ts5.9/dom.generated.d.ts b/baselines/ts5.9/dom.generated.d.ts
index b0dba0280..fed69c444 100644
--- a/baselines/ts5.9/dom.generated.d.ts
+++ b/baselines/ts5.9/dom.generated.d.ts
@@ -81,6 +81,10 @@ interface AnimationPlaybackEventInit extends EventInit {
     timelineTime?: CSSNumberish | null;
 }
 
+interface AriaNotificationOptions {
+    priority?: AriaNotifyPriority;
+}
+
 interface AssignedNodesOptions {
     flatten?: boolean;
 }
@@ -3656,6 +3660,11 @@ interface ARIAMixin {
     role: string | null;
 }
 
+interface ARIANotifyMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/ariaNotify) */
+    ariaNotify(announcement: string, options?: AriaNotificationOptions): void;
+}
+
 /**
  * The **`AbortController`** interface represents a controller object that allows you to abort one or more Web requests as and when desired.
  *
@@ -13008,7 +13017,7 @@ interface DocumentEventMap extends GlobalEventHandlersEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document)
  */
-interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
+interface Document extends Node, ARIANotifyMixin, DocumentOrShadowRoot, FontFaceSource, GlobalEventHandlers, NonElementParentNode, ParentNode, XPathEvaluatorBase {
     /**
      * The **`URL`** read-only property of the Document interface returns the document location as a string.
      *
@@ -14042,7 +14051,7 @@ interface ElementEventMap {
  *
  * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element)
  */
-interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
+interface Element extends Node, ARIAMixin, ARIANotifyMixin, Animatable, ChildNode, NonDocumentTypeChildNode, ParentNode, Slottable {
     /**
      * The **`Element.attributes`** property returns a live collection of all attribute nodes registered to the specified node. It is a NamedNodeMap, not an Array, so it has no Array methods and the Attr nodes' indexes may differ among browsers. To be more specific, attributes is a key/value pair of strings that represents any information regarding that attribute.
      *
@@ -45135,6 +45144,7 @@ type AlphaOption = "discard" | "keep";
 type AnimationPlayState = "finished" | "idle" | "paused" | "running";
 type AnimationReplaceState = "active" | "persisted" | "removed";
 type AppendMode = "segments" | "sequence";
+type AriaNotifyPriority = "high" | "normal";
 type AttestationConveyancePreference = "direct" | "enterprise" | "indirect" | "none";
 type AudioContextLatencyCategory = "balanced" | "interactive" | "playback";
 type AudioContextState = "closed" | "interrupted" | "running" | "suspended";
diff --git a/inputfiles/patches/aria.kdl b/inputfiles/patches/aria.kdl
deleted file mode 100644
index f087edca2..000000000
--- a/inputfiles/patches/aria.kdl
+++ /dev/null
@@ -1,11 +0,0 @@
-// https://w3c.github.io/aria/
-
-removals {
-  // Gecko only as of 2026-03
-  interface Document {
-    includes ARIANotifyMixin
-  }
-  interface Element {
-    includes ARIANotifyMixin
-  }
-}