diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 9b6c7a2bc..7584db610 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -2309,6 +2309,7 @@ interface TextEncoderEncodeIntoResult {
 interface ToggleEventInit extends EventInit {
     newState?: string;
     oldState?: string;
+    source?: Element | null;
 }
 
 interface TouchEventInit extends EventModifierInit {
@@ -3277,7 +3278,11 @@ interface AnimationTimeline {
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/currentTime)
      */
     readonly currentTime: CSSNumberish | null;
-    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration) */
+    /**
+     * The **`duration`** read-only property of the Web Animations API's AnimationTimeline interface returns the maximum value for this timeline or `null`.
+     *
+     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration)
+     */
     readonly duration: CSSNumberish | null;
 }
 
@@ -14137,7 +14142,7 @@ interface HTMLElement extends Element, ElementCSSInlineStyle, ElementContentEdit
      */
     innerText: string;
     /**
-     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a MISSING: RFC(5646, 'BCP 47 language identifier tag')].
+     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a BCP 47 language tag.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lang)
      */
@@ -15486,7 +15491,7 @@ interface HTMLLabelElement extends HTMLElement {
      */
     readonly control: HTMLElement | null;
     /**
-     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a control owned by a form.
+     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a labelable form-associated element (button, input, output, select, textarea, or form-associated custom elements) that is owned by a form.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form)
      */
@@ -16797,7 +16802,7 @@ interface HTMLScriptElement extends HTMLElement {
      */
     src: string;
     /**
-     * The **`text`** property of the HTMLScriptElement interface is a string that reflects the text content inside the script element.
+     * The **`text`** property of the HTMLScriptElement interface represents the inline text content of the script element.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/text)
      */
@@ -30640,7 +30645,7 @@ interface ScreenOrientation extends EventTarget {
      */
     lock(orientation: OrientationLockType): Promise<void>;
     /**
-     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document from its default orientation.
+     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document, effectively locking it to the default screen orientation.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/unlock)
      */
@@ -40144,7 +40149,7 @@ type MediaKeysRequirement = "not-allowed" | "optional" | "required";
 type MediaSessionAction = "nexttrack" | "pause" | "play" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
 type MediaSessionPlaybackState = "none" | "paused" | "playing";
 type MediaStreamTrackState = "ended" | "live";
-type NavigationTimingType = "back_forward" | "navigate" | "prerender" | "reload";
+type NavigationTimingType = "back_forward" | "navigate" | "reload";
 type NavigationType = "push" | "reload" | "replace" | "traverse";
 type NotificationDirection = "auto" | "ltr" | "rtl";
 type NotificationPermission = "default" | "denied" | "granted";
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index 1c9b1f90e..397dddb2b 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -2306,6 +2306,7 @@ interface TextEncoderEncodeIntoResult {
 interface ToggleEventInit extends EventInit {
     newState?: string;
     oldState?: string;
+    source?: Element | null;
 }
 
 interface TouchEventInit extends EventModifierInit {
@@ -3274,7 +3275,11 @@ interface AnimationTimeline {
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/currentTime)
      */
     readonly currentTime: CSSNumberish | null;
-    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration) */
+    /**
+     * The **`duration`** read-only property of the Web Animations API's AnimationTimeline interface returns the maximum value for this timeline or `null`.
+     *
+     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration)
+     */
     readonly duration: CSSNumberish | null;
 }
 
@@ -14121,7 +14126,7 @@ interface HTMLElement extends Element, ElementCSSInlineStyle, ElementContentEdit
      */
     innerText: string;
     /**
-     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a MISSING: RFC(5646, 'BCP 47 language identifier tag')].
+     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a BCP 47 language tag.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lang)
      */
@@ -15468,7 +15473,7 @@ interface HTMLLabelElement extends HTMLElement {
      */
     readonly control: HTMLElement | null;
     /**
-     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a control owned by a form.
+     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a labelable form-associated element (button, input, output, select, textarea, or form-associated custom elements) that is owned by a form.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form)
      */
@@ -16774,7 +16779,7 @@ interface HTMLScriptElement extends HTMLElement {
      */
     src: string;
     /**
-     * The **`text`** property of the HTMLScriptElement interface is a string that reflects the text content inside the script element.
+     * The **`text`** property of the HTMLScriptElement interface represents the inline text content of the script element.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/text)
      */
@@ -30615,7 +30620,7 @@ interface ScreenOrientation extends EventTarget {
      */
     lock(orientation: OrientationLockType): Promise<void>;
     /**
-     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document from its default orientation.
+     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document, effectively locking it to the default screen orientation.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/unlock)
      */
@@ -40118,7 +40123,7 @@ type MediaKeysRequirement = "not-allowed" | "optional" | "required";
 type MediaSessionAction = "nexttrack" | "pause" | "play" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
 type MediaSessionPlaybackState = "none" | "paused" | "playing";
 type MediaStreamTrackState = "ended" | "live";
-type NavigationTimingType = "back_forward" | "navigate" | "prerender" | "reload";
+type NavigationTimingType = "back_forward" | "navigate" | "reload";
 type NavigationType = "push" | "reload" | "replace" | "traverse";
 type NotificationDirection = "auto" | "ltr" | "rtl";
 type NotificationPermission = "default" | "denied" | "granted";
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index 0facfd4ee..70d9933e1 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -2306,6 +2306,7 @@ interface TextEncoderEncodeIntoResult {
 interface ToggleEventInit extends EventInit {
     newState?: string;
     oldState?: string;
+    source?: Element | null;
 }
 
 interface TouchEventInit extends EventModifierInit {
@@ -3274,7 +3275,11 @@ interface AnimationTimeline {
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/currentTime)
      */
     readonly currentTime: CSSNumberish | null;
-    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration) */
+    /**
+     * The **`duration`** read-only property of the Web Animations API's AnimationTimeline interface returns the maximum value for this timeline or `null`.
+     *
+     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration)
+     */
     readonly duration: CSSNumberish | null;
 }
 
@@ -14134,7 +14139,7 @@ interface HTMLElement extends Element, ElementCSSInlineStyle, ElementContentEdit
      */
     innerText: string;
     /**
-     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a MISSING: RFC(5646, 'BCP 47 language identifier tag')].
+     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a BCP 47 language tag.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lang)
      */
@@ -15483,7 +15488,7 @@ interface HTMLLabelElement extends HTMLElement {
      */
     readonly control: HTMLElement | null;
     /**
-     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a control owned by a form.
+     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a labelable form-associated element (button, input, output, select, textarea, or form-associated custom elements) that is owned by a form.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form)
      */
@@ -16794,7 +16799,7 @@ interface HTMLScriptElement extends HTMLElement {
      */
     src: string;
     /**
-     * The **`text`** property of the HTMLScriptElement interface is a string that reflects the text content inside the script element.
+     * The **`text`** property of the HTMLScriptElement interface represents the inline text content of the script element.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/text)
      */
@@ -30637,7 +30642,7 @@ interface ScreenOrientation extends EventTarget {
      */
     lock(orientation: OrientationLockType): Promise<void>;
     /**
-     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document from its default orientation.
+     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document, effectively locking it to the default screen orientation.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/unlock)
      */
@@ -40141,7 +40146,7 @@ type MediaKeysRequirement = "not-allowed" | "optional" | "required";
 type MediaSessionAction = "nexttrack" | "pause" | "play" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
 type MediaSessionPlaybackState = "none" | "paused" | "playing";
 type MediaStreamTrackState = "ended" | "live";
-type NavigationTimingType = "back_forward" | "navigate" | "prerender" | "reload";
+type NavigationTimingType = "back_forward" | "navigate" | "reload";
 type NavigationType = "push" | "reload" | "replace" | "traverse";
 type NotificationDirection = "auto" | "ltr" | "rtl";
 type NotificationPermission = "default" | "denied" | "granted";
diff --git a/baselines/ts5.9/dom.generated.d.ts b/baselines/ts5.9/dom.generated.d.ts
index 91787efe1..e33b79e08 100644
--- a/baselines/ts5.9/dom.generated.d.ts
+++ b/baselines/ts5.9/dom.generated.d.ts
@@ -2306,6 +2306,7 @@ interface TextEncoderEncodeIntoResult {
 interface ToggleEventInit extends EventInit {
     newState?: string;
     oldState?: string;
+    source?: Element | null;
 }
 
 interface TouchEventInit extends EventModifierInit {
@@ -3274,7 +3275,11 @@ interface AnimationTimeline {
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/currentTime)
      */
     readonly currentTime: CSSNumberish | null;
-    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration) */
+    /**
+     * The **`duration`** read-only property of the Web Animations API's AnimationTimeline interface returns the maximum value for this timeline or `null`.
+     *
+     * [MDN Reference](https://developer.mozilla.org/docs/Web/API/AnimationTimeline/duration)
+     */
     readonly duration: CSSNumberish | null;
 }
 
@@ -14134,7 +14139,7 @@ interface HTMLElement extends Element, ElementCSSInlineStyle, ElementContentEdit
      */
     innerText: string;
     /**
-     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a MISSING: RFC(5646, 'BCP 47 language identifier tag')].
+     * The **`lang`** property of the HTMLElement interface indicates the base language of an element's attribute values and text content, in the form of a BCP 47 language tag.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/lang)
      */
@@ -15483,7 +15488,7 @@ interface HTMLLabelElement extends HTMLElement {
      */
     readonly control: HTMLElement | null;
     /**
-     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a control owned by a form.
+     * The **`form`** read-only property of the HTMLLabelElement interface returns an HTMLFormElement object that owns the HTMLLabelElement.control associated with this label, or `null` if this label is not associated with a labelable form-associated element (button, input, output, select, textarea, or form-associated custom elements) that is owned by a form.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLLabelElement/form)
      */
@@ -16794,7 +16799,7 @@ interface HTMLScriptElement extends HTMLElement {
      */
     src: string;
     /**
-     * The **`text`** property of the HTMLScriptElement interface is a string that reflects the text content inside the script element.
+     * The **`text`** property of the HTMLScriptElement interface represents the inline text content of the script element.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLScriptElement/text)
      */
@@ -30637,7 +30642,7 @@ interface ScreenOrientation extends EventTarget {
      */
     lock(orientation: OrientationLockType): Promise<void>;
     /**
-     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document from its default orientation.
+     * The **`unlock()`** method of the ScreenOrientation interface unlocks the orientation of the containing document, effectively locking it to the default screen orientation.
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ScreenOrientation/unlock)
      */
@@ -40141,7 +40146,7 @@ type MediaKeysRequirement = "not-allowed" | "optional" | "required";
 type MediaSessionAction = "nexttrack" | "pause" | "play" | "previoustrack" | "seekbackward" | "seekforward" | "seekto" | "skipad" | "stop";
 type MediaSessionPlaybackState = "none" | "paused" | "playing";
 type MediaStreamTrackState = "ended" | "live";
-type NavigationTimingType = "back_forward" | "navigate" | "prerender" | "reload";
+type NavigationTimingType = "back_forward" | "navigate" | "reload";
 type NavigationType = "push" | "reload" | "replace" | "traverse";
 type NotificationDirection = "auto" | "ltr" | "rtl";
 type NotificationPermission = "default" | "denied" | "granted";
diff --git a/inputfiles/mdn b/inputfiles/mdn
index c148812e0..f60b328b6 160000
--- a/inputfiles/mdn
+++ b/inputfiles/mdn
@@ -1 +1 @@
-Subproject commit c148812e0874220770cab62c16f33f48ceb98e99
+Subproject commit f60b328b611150a5c62230de561c36b2a63d7483
diff --git a/package-lock.json b/package-lock.json
index 888e48c1a..8626ffc89 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1038,9 +1038,9 @@
       }
     },
     "node_modules/@webref/css": {
-      "version": "6.23.10",
-      "resolved": "https://registry.npmjs.org/@webref/css/-/css-6.23.10.tgz",
-      "integrity": "sha512-Z7QjoTKpoNEs2A3t+yKE8KB9YXwnSvJfDCux+Fkn1h5U2V3wSj5Xlc4j2AJ8k5E+Vrq8h9ZP3QHly29xnva6RQ==",
+      "version": "6.23.11",
+      "resolved": "https://registry.npmjs.org/@webref/css/-/css-6.23.11.tgz",
+      "integrity": "sha512-RyRWiSjmSyrs+n2Qv5SVg45fay8YF76PZ3YxDmF8HndC4K9D5NQuR2AfTeqspiwJdOsfTKBDAZD0vPw4Rxpu7g==",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
@@ -1048,9 +1048,9 @@
       }
     },
     "node_modules/@webref/elements": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/@webref/elements/-/elements-2.5.0.tgz",
-      "integrity": "sha512-8sOq8RgoQukYeuKi/lf1ioSrD2dla+0fnEWIr6PGp1Dc6sUHTL0AOc2LqcmAmjuICgaShSk6u72y0Uu4B5bF6Q==",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/@webref/elements/-/elements-2.5.1.tgz",
+      "integrity": "sha512-AGAuITJeKPAUAM4KqMh47KOl71Js8Nqs6IMUrS7KCbaQFrtBMRC6zAz/JbfZtcV+FaYqEXg3T0S343VEgXY/wQ==",
       "dev": true,
       "license": "MIT"
     },
@@ -1062,9 +1062,9 @@
       "license": "MIT"
     },
     "node_modules/@webref/idl": {
-      "version": "3.68.0",
-      "resolved": "https://registry.npmjs.org/@webref/idl/-/idl-3.68.0.tgz",
-      "integrity": "sha512-YbYiRRCTBOXRHiKvCasjQHKXgj2j/d8RAJbVFeABB66bg7pjQQTrRMxKjApLp2seYRKUeqNwTYrOM248PuVbjw==",
+      "version": "3.68.1",
+      "resolved": "https://registry.npmjs.org/@webref/idl/-/idl-3.68.1.tgz",
+      "integrity": "sha512-ZCsF8jxVxtHcyYLaueF68SXSq9uiZv+49ilk6c2RfzKDhj+kpJKhkR2zRe8tcDdhWD/CWAhA3ADWNHayLhx72A==",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {