diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index f59f92f69..0ee34eafa 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -713,6 +713,10 @@ interface GetAnimationsOptions {
     subtree?: boolean;
 }
 
+interface GetComposedRangesOptions {
+    shadowRoots?: ShadowRoot[];
+}
+
 interface GetHTMLOptions {
     serializableShadowRoots?: boolean;
     shadowRoots?: ShadowRoot[];
@@ -2517,6 +2521,7 @@ interface ANGLE_instanced_arrays {
 }
 
 interface ARIAMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaActiveDescendantElement) */
     ariaActiveDescendantElement: Element | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaAtomic) */
     ariaAtomic: string | null;
@@ -2538,18 +2543,23 @@ interface ARIAMixin {
     ariaColIndexText: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaColSpan) */
     ariaColSpan: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaControlsElements) */
     ariaControlsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaCurrent) */
     ariaCurrent: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescribedByElements) */
     ariaDescribedByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescription) */
     ariaDescription: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDetailsElements) */
     ariaDetailsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDisabled) */
     ariaDisabled: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaErrorMessageElements) */
     ariaErrorMessageElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaExpanded) */
     ariaExpanded: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaFlowToElements) */
     ariaFlowToElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaHasPopup) */
     ariaHasPopup: string | null;
@@ -2561,6 +2571,7 @@ interface ARIAMixin {
     ariaKeyShortcuts: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabel) */
     ariaLabel: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabelledByElements) */
     ariaLabelledByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLevel) */
     ariaLevel: string | null;
@@ -2574,6 +2585,7 @@ interface ARIAMixin {
     ariaMultiSelectable: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOrientation) */
     ariaOrientation: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOwnsElements) */
     ariaOwnsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaPlaceholder) */
     ariaPlaceholder: string | null;
@@ -10093,6 +10105,7 @@ interface GlobalEventHandlersEventMap {
     "animationstart": AnimationEvent;
     "auxclick": PointerEvent;
     "beforeinput": InputEvent;
+    "beforematch": Event;
     "beforetoggle": ToggleEvent;
     "blur": FocusEvent;
     "cancel": Event;
@@ -10211,6 +10224,8 @@ interface GlobalEventHandlers {
     onauxclick: ((this: GlobalEventHandlers, ev: PointerEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
     onbeforeinput: ((this: GlobalEventHandlers, ev: InputEvent) => any) | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+    onbeforematch: ((this: GlobalEventHandlers, ev: Event) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
     onbeforetoggle: ((this: GlobalEventHandlers, ev: ToggleEvent) => any) | null;
     /**
@@ -23488,6 +23503,8 @@ interface Selection {
     empty(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/extend) */
     extend(node: Node, offset?: number): void;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getComposedRanges) */
+    getComposedRanges(options?: GetComposedRangesOptions): StaticRange[];
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getRangeAt) */
     getRangeAt(index: number): Range;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/modify) */
@@ -30164,6 +30181,8 @@ declare var onanimationstart: ((this: Window, ev: AnimationEvent) => any) | null
 declare var onauxclick: ((this: Window, ev: PointerEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
 declare var onbeforeinput: ((this: Window, ev: InputEvent) => any) | null;
+/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+declare var onbeforematch: ((this: Window, ev: Event) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
 declare var onbeforetoggle: ((this: Window, ev: ToggleEvent) => any) | null;
 /**
diff --git a/baselines/serviceworker.generated.d.ts b/baselines/serviceworker.generated.d.ts
index c85eb34b6..3eb629f41 100644
--- a/baselines/serviceworker.generated.d.ts
+++ b/baselines/serviceworker.generated.d.ts
@@ -481,6 +481,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -4888,6 +4893,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -5340,7 +5356,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -5371,7 +5387,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
@@ -9015,7 +9031,7 @@ declare var onnotificationclose: ((this: ServiceWorkerGlobalScope, ev: Notificat
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
 declare var onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
 declare var registration: ServiceWorkerRegistration;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index 7b606bbf2..20e09e2bb 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -713,6 +713,10 @@ interface GetAnimationsOptions {
     subtree?: boolean;
 }
 
+interface GetComposedRangesOptions {
+    shadowRoots?: ShadowRoot[];
+}
+
 interface GetHTMLOptions {
     serializableShadowRoots?: boolean;
     shadowRoots?: ShadowRoot[];
@@ -2517,6 +2521,7 @@ interface ANGLE_instanced_arrays {
 }
 
 interface ARIAMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaActiveDescendantElement) */
     ariaActiveDescendantElement: Element | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaAtomic) */
     ariaAtomic: string | null;
@@ -2538,18 +2543,23 @@ interface ARIAMixin {
     ariaColIndexText: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaColSpan) */
     ariaColSpan: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaControlsElements) */
     ariaControlsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaCurrent) */
     ariaCurrent: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescribedByElements) */
     ariaDescribedByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescription) */
     ariaDescription: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDetailsElements) */
     ariaDetailsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDisabled) */
     ariaDisabled: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaErrorMessageElements) */
     ariaErrorMessageElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaExpanded) */
     ariaExpanded: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaFlowToElements) */
     ariaFlowToElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaHasPopup) */
     ariaHasPopup: string | null;
@@ -2561,6 +2571,7 @@ interface ARIAMixin {
     ariaKeyShortcuts: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabel) */
     ariaLabel: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabelledByElements) */
     ariaLabelledByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLevel) */
     ariaLevel: string | null;
@@ -2574,6 +2585,7 @@ interface ARIAMixin {
     ariaMultiSelectable: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOrientation) */
     ariaOrientation: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOwnsElements) */
     ariaOwnsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaPlaceholder) */
     ariaPlaceholder: string | null;
@@ -10083,6 +10095,7 @@ interface GlobalEventHandlersEventMap {
     "animationstart": AnimationEvent;
     "auxclick": PointerEvent;
     "beforeinput": InputEvent;
+    "beforematch": Event;
     "beforetoggle": ToggleEvent;
     "blur": FocusEvent;
     "cancel": Event;
@@ -10201,6 +10214,8 @@ interface GlobalEventHandlers {
     onauxclick: ((this: GlobalEventHandlers, ev: PointerEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
     onbeforeinput: ((this: GlobalEventHandlers, ev: InputEvent) => any) | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+    onbeforematch: ((this: GlobalEventHandlers, ev: Event) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
     onbeforetoggle: ((this: GlobalEventHandlers, ev: ToggleEvent) => any) | null;
     /**
@@ -23467,6 +23482,8 @@ interface Selection {
     empty(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/extend) */
     extend(node: Node, offset?: number): void;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getComposedRanges) */
+    getComposedRanges(options?: GetComposedRangesOptions): StaticRange[];
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getRangeAt) */
     getRangeAt(index: number): Range;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/modify) */
@@ -30142,6 +30159,8 @@ declare var onanimationstart: ((this: Window, ev: AnimationEvent) => any) | null
 declare var onauxclick: ((this: Window, ev: PointerEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
 declare var onbeforeinput: ((this: Window, ev: InputEvent) => any) | null;
+/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+declare var onbeforematch: ((this: Window, ev: Event) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
 declare var onbeforetoggle: ((this: Window, ev: ToggleEvent) => any) | null;
 /**
diff --git a/baselines/ts5.5/serviceworker.generated.d.ts b/baselines/ts5.5/serviceworker.generated.d.ts
index 472e7dedf..a323eac8a 100644
--- a/baselines/ts5.5/serviceworker.generated.d.ts
+++ b/baselines/ts5.5/serviceworker.generated.d.ts
@@ -481,6 +481,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -4888,6 +4893,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -5340,7 +5356,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -5371,7 +5387,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
@@ -9015,7 +9031,7 @@ declare var onnotificationclose: ((this: ServiceWorkerGlobalScope, ev: Notificat
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
 declare var onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
 declare var registration: ServiceWorkerRegistration;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/baselines/ts5.5/webworker.generated.d.ts b/baselines/ts5.5/webworker.generated.d.ts
index 576d57d88..d4a9d094b 100644
--- a/baselines/ts5.5/webworker.generated.d.ts
+++ b/baselines/ts5.5/webworker.generated.d.ts
@@ -603,6 +603,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -5494,6 +5499,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -6091,7 +6107,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -6122,7 +6138,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index 94ed62bd2..eb3db3fc7 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -713,6 +713,10 @@ interface GetAnimationsOptions {
     subtree?: boolean;
 }
 
+interface GetComposedRangesOptions {
+    shadowRoots?: ShadowRoot[];
+}
+
 interface GetHTMLOptions {
     serializableShadowRoots?: boolean;
     shadowRoots?: ShadowRoot[];
@@ -2517,6 +2521,7 @@ interface ANGLE_instanced_arrays {
 }
 
 interface ARIAMixin {
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaActiveDescendantElement) */
     ariaActiveDescendantElement: Element | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaAtomic) */
     ariaAtomic: string | null;
@@ -2538,18 +2543,23 @@ interface ARIAMixin {
     ariaColIndexText: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaColSpan) */
     ariaColSpan: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaControlsElements) */
     ariaControlsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaCurrent) */
     ariaCurrent: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescribedByElements) */
     ariaDescribedByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDescription) */
     ariaDescription: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDetailsElements) */
     ariaDetailsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaDisabled) */
     ariaDisabled: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaErrorMessageElements) */
     ariaErrorMessageElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaExpanded) */
     ariaExpanded: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaFlowToElements) */
     ariaFlowToElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaHasPopup) */
     ariaHasPopup: string | null;
@@ -2561,6 +2571,7 @@ interface ARIAMixin {
     ariaKeyShortcuts: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabel) */
     ariaLabel: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLabelledByElements) */
     ariaLabelledByElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaLevel) */
     ariaLevel: string | null;
@@ -2574,6 +2585,7 @@ interface ARIAMixin {
     ariaMultiSelectable: string | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOrientation) */
     ariaOrientation: string | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaOwnsElements) */
     ariaOwnsElements: ReadonlyArray<Element> | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/ariaPlaceholder) */
     ariaPlaceholder: string | null;
@@ -10093,6 +10105,7 @@ interface GlobalEventHandlersEventMap {
     "animationstart": AnimationEvent;
     "auxclick": PointerEvent;
     "beforeinput": InputEvent;
+    "beforematch": Event;
     "beforetoggle": ToggleEvent;
     "blur": FocusEvent;
     "cancel": Event;
@@ -10211,6 +10224,8 @@ interface GlobalEventHandlers {
     onauxclick: ((this: GlobalEventHandlers, ev: PointerEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
     onbeforeinput: ((this: GlobalEventHandlers, ev: InputEvent) => any) | null;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+    onbeforematch: ((this: GlobalEventHandlers, ev: Event) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
     onbeforetoggle: ((this: GlobalEventHandlers, ev: ToggleEvent) => any) | null;
     /**
@@ -23488,6 +23503,8 @@ interface Selection {
     empty(): void;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/extend) */
     extend(node: Node, offset?: number): void;
+    /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getComposedRanges) */
+    getComposedRanges(options?: GetComposedRangesOptions): StaticRange[];
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/getRangeAt) */
     getRangeAt(index: number): Range;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Selection/modify) */
@@ -30164,6 +30181,8 @@ declare var onanimationstart: ((this: Window, ev: AnimationEvent) => any) | null
 declare var onauxclick: ((this: Window, ev: PointerEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforeinput_event) */
 declare var onbeforeinput: ((this: Window, ev: InputEvent) => any) | null;
+/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/beforematch_event) */
+declare var onbeforematch: ((this: Window, ev: Event) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/HTMLElement/beforetoggle_event) */
 declare var onbeforetoggle: ((this: Window, ev: ToggleEvent) => any) | null;
 /**
diff --git a/baselines/ts5.6/serviceworker.generated.d.ts b/baselines/ts5.6/serviceworker.generated.d.ts
index 472e7dedf..a323eac8a 100644
--- a/baselines/ts5.6/serviceworker.generated.d.ts
+++ b/baselines/ts5.6/serviceworker.generated.d.ts
@@ -481,6 +481,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -4888,6 +4893,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -5340,7 +5356,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -5371,7 +5387,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
@@ -9015,7 +9031,7 @@ declare var onnotificationclose: ((this: ServiceWorkerGlobalScope, ev: Notificat
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
 declare var onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+declare var onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
 declare var registration: ServiceWorkerRegistration;
 /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/baselines/ts5.6/webworker.generated.d.ts b/baselines/ts5.6/webworker.generated.d.ts
index 576d57d88..d4a9d094b 100644
--- a/baselines/ts5.6/webworker.generated.d.ts
+++ b/baselines/ts5.6/webworker.generated.d.ts
@@ -603,6 +603,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -5494,6 +5499,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -6091,7 +6107,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -6122,7 +6138,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
index 1aaab763e..b3ee80a88 100644
--- a/baselines/webworker.generated.d.ts
+++ b/baselines/webworker.generated.d.ts
@@ -603,6 +603,11 @@ interface PushEventInit extends ExtendableEventInit {
     data?: PushMessageDataInit;
 }
 
+interface PushSubscriptionChangeEventInit extends ExtendableEventInit {
+    newSubscription?: PushSubscription;
+    oldSubscription?: PushSubscription;
+}
+
 interface PushSubscriptionJSON {
     endpoint?: string;
     expirationTime?: EpochTimeStamp | null;
@@ -5494,6 +5499,17 @@ declare var PushSubscription: {
     new(): PushSubscription;
 };
 
+/** Available only in secure contexts. */
+interface PushSubscriptionChangeEvent extends ExtendableEvent {
+    readonly newSubscription: PushSubscription | null;
+    readonly oldSubscription: PushSubscription | null;
+}
+
+declare var PushSubscriptionChangeEvent: {
+    prototype: PushSubscriptionChangeEvent;
+    new(type: string, eventInitDict?: PushSubscriptionChangeEventInit): PushSubscriptionChangeEvent;
+};
+
 /**
  * The **`PushSubscriptionOptions`** interface of the Push API represents the options associated with a push subscription.
  * Available only in secure contexts.
@@ -6091,7 +6107,7 @@ interface ServiceWorkerGlobalScopeEventMap extends WorkerGlobalScopeEventMap {
     "notificationclick": NotificationEvent;
     "notificationclose": NotificationEvent;
     "push": PushEvent;
-    "pushsubscriptionchange": Event;
+    "pushsubscriptionchange": PushSubscriptionChangeEvent;
 }
 
 /**
@@ -6122,7 +6138,7 @@ interface ServiceWorkerGlobalScope extends WorkerGlobalScope {
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/push_event) */
     onpush: ((this: ServiceWorkerGlobalScope, ev: PushEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event) */
-    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: Event) => any) | null;
+    onpushsubscriptionchange: ((this: ServiceWorkerGlobalScope, ev: PushSubscriptionChangeEvent) => any) | null;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/registration) */
     readonly registration: ServiceWorkerRegistration;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker) */
diff --git a/inputfiles/mdn b/inputfiles/mdn
index 63dd9b763..600382ef1 160000
--- a/inputfiles/mdn
+++ b/inputfiles/mdn
@@ -1 +1 @@
-Subproject commit 63dd9b763192e1aa40b75c04b0c3aa53d8cb974a
+Subproject commit 600382ef110a36643b1f94d9ea2ae4779f8978cd
diff --git a/package-lock.json b/package-lock.json
index 32443e46f..cade1c660 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -348,9 +348,9 @@
       }
     },
     "node_modules/@mdn/browser-compat-data": {
-      "version": "6.0.11",
-      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-6.0.11.tgz",
-      "integrity": "sha512-vcLCW2dvKfHGV4t/lkocstKvu15hfaMaAEaGTzL4wZ6ZWmI2aHbrFcO/LkK34jkFPjKXm3GHLm5h35u5WD4d9w==",
+      "version": "6.0.12",
+      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-6.0.12.tgz",
+      "integrity": "sha512-lQ6p212jKeJBG+L7UYRKchTCcnQbp6yOj5swKxGLjvuW4SmbgWgd/WyA1Dxq1GGT86C7jVTEaKry36LmsBp8SQ==",
       "dev": true,
       "license": "CC0-1.0"
     },