diff --git a/doc/notification.markdown b/doc/notification.markdown
index f232ce99..a018e205 100644
--- a/doc/notification.markdown
+++ b/doc/notification.markdown
@@ -163,12 +163,24 @@ The properties below are sent alongside the notification as configuration and do
 
 #### notification.topic
 
-_Required_: The destination topic for the notification.
+_Required_: The destination topic for the notification. If you want to set a `pushtotalk` push type, the `topic` must use your app’s bundle ID with `.voip-ptt` appended to the end. If you want to set a `liveactivity` push type, the `topic` must use your app’s bundle ID with `.push-type.liveactivity` appended to the end.
 
 #### notification.id
 
 A UUID to identify the notification with APNS. If an `id` is not supplied, APNS will generate one automatically. If an error occurs the response will contain the `id`. This property populates the `apns-id` header.
 
+#### notification.collapseId
+
+Multiple notifications with same collapse identifier are displayed to the user as a single notification. The value should not exceed 64 bytes.
+
+#### notification.requestId
+
+An optional custom request identifier that’s returned back in the response. The request identifier must be encoded as a UUID string.
+
+#### notification.channelId
+
+The channel ID is a base64-encoded string that identifies the channel to publish the payload. The channel ID is generated by sending channel creation request to APNs.
+
 #### notification.expiry
 
 A UNIX timestamp when the notification should expire. If the notification cannot be delivered to the device, APNS will retry until it expires. An expiry of `0` indicates that the notification expires immediately, therefore no retries will be attempted.
@@ -186,12 +198,8 @@ Provide one of the following values:
 
 (Required when delivering notifications to devices running iOS 13 and later, or watchOS 6 and later. Ignored on earlier system versions.)
 
-The type of the notification. The value of this header is `alert` or `background`. Specify `alert` when the delivery of your notification displays an alert, plays a sound, or badges your app's icon. Specify `background` for silent notifications that do not interact with the user.
+The type of the notification. The value of this header is `alert`, `background`, `pushtotalk`, or `liveactivity`. Specify `alert` when the delivery of your notification displays an alert, plays a sound, or badges your app's icon. Specify `background` for silent notifications that do not interact with the user. Specify `pushtotalk` for notifications that provide information about updates to your application’s push to talk services. Specify `liveactivity` for live activities.
 
 The value of this header must accurately reflect the contents of your notification's payload. If there is a mismatch, or if the header is missing on required systems, APNs may delay the delivery of the notification or drop it altogether.
 
-#### notification.collapseId
-
-Multiple notifications with same collapse identifier are displayed to the user as a single notification. The value should not exceed 64 bytes.
-
-[pl]:https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CreatingtheNotificationPayload.html "Local and Push Notification Programming Guide: Apple Push Notification Service"
+[pl]:https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/CreatingtheNotificationPayload.html "Local and Push Notification Programming Guide: Apple Push Notification Service"
\ No newline at end of file
diff --git a/index.d.ts b/index.d.ts
index a9df517e..b073ef55 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -167,7 +167,7 @@ export class MultiProvider extends EventEmitter {
   shutdown(callback?: () => void): void;
 }
 
-export type NotificationPushType = 'background' | 'alert' | 'voip';
+export type NotificationPushType = 'background' | 'alert' | 'voip' | 'pushtotalk' | 'liveactivity';
 
 export interface NotificationAlertOptions {
   title?: string;
@@ -201,6 +201,18 @@ export class Notification {
    * The UNIX timestamp representing when the notification should expire. This does not contribute to the 2048 byte payload size limit. An expiry of 0 indicates that the notification expires immediately.
    */
   public expiry: number;
+  /**
+   * Multiple notifications with same collapse identifier are displayed to the user as a single notification. The value should not exceed 64 bytes.
+   */
+  public collapseId: string;
+  /**
+   * Multiple notifications with same collapse identifier are displayed to the user as a single notification. The value should not exceed 64 bytes.
+   */
+  public requestId: string;
+  /**
+   * An optional custom request identifier that’s returned back in the response. The request identifier must be encoded as a UUID string.
+   */
+  public channelId: string;
   /**
    * Provide one of the following values:
    *
@@ -209,9 +221,14 @@ export class Notification {
    * - 5 - The push message is sent at a time that conserves power on the device receiving it.
    */
   public priority: number;
-
-  public collapseId: string;
+  /**
+   * The type of the notification.
+   */
   public pushType: NotificationPushType;
+
+  /**
+   * An app-specific identifier for grouping related notifications.
+   */
   public threadId: string;
 
   /**
diff --git a/lib/notification/index.js b/lib/notification/index.js
index 8651cee4..94f9700c 100644
--- a/lib/notification/index.js
+++ b/lib/notification/index.js
@@ -56,7 +56,7 @@ Notification.prototype = require('./apsProperties');
   'staleDate',
   'event',
   'contentState',
-  'dismissalDate'
+  'dismissalDate',
 ].forEach(propName => {
   const methodName = 'set' + propName[0].toUpperCase() + propName.slice(1);
   Notification.prototype[methodName] = function (value) {
@@ -76,6 +76,18 @@ Notification.prototype.headers = function headers() {
     headers['apns-id'] = this.id;
   }
 
+  if (this.collapseId) {
+    headers['apns-collapse-id'] = this.collapseId;
+  }
+
+  if (this.requestId) {
+    headers['apns-request-id'] = this.requestId;
+  }
+
+  if (this.channelId) {
+    headers['apns-channel-id'] = this.channelId;
+  }
+
   if (this.expiry >= 0) {
     headers['apns-expiration'] = this.expiry;
   }
@@ -84,10 +96,6 @@ Notification.prototype.headers = function headers() {
     headers['apns-topic'] = this.topic;
   }
 
-  if (this.collapseId) {
-    headers['apns-collapse-id'] = this.collapseId;
-  }
-
   if (this.pushType) {
     headers['apns-push-type'] = this.pushType;
   }
diff --git a/test/client.js b/test/client.js
index c3a32c08..c23ffc08 100644
--- a/test/client.js
+++ b/test/client.js
@@ -352,7 +352,11 @@ describe('Client', () => {
       const result = await client.write(mockNotification, mockDevice);
       // Should not happen, but if it does, the promise should resolve with an error
       expect(result.device).to.equal(MOCK_DEVICE_TOKEN);
-      expect(result.error.message.startsWith('Unexpected error processing APNs response: Unexpected token')).to.equal(true);
+      expect(
+        result.error.message.startsWith(
+          'Unexpected error processing APNs response: Unexpected token'
+        )
+      ).to.equal(true);
     };
     await runRequestWithInternalServerError();
     await runRequestWithInternalServerError();
diff --git a/test/multiclient.js b/test/multiclient.js
index 243c19ea..670ae76d 100644
--- a/test/multiclient.js
+++ b/test/multiclient.js
@@ -373,7 +373,11 @@ describe('MultiClient', () => {
       const result = await client.write(mockNotification, mockDevice);
       // Should not happen, but if it does, the promise should resolve with an error
       expect(result.device).to.equal(MOCK_DEVICE_TOKEN);
-      expect(result.error.message.startsWith('Unexpected error processing APNs response: Unexpected token')).to.equal(true);
+      expect(
+        result.error.message.startsWith(
+          'Unexpected error processing APNs response: Unexpected token'
+        )
+      ).to.equal(true);
     };
     await runRequestWithInternalServerError();
     await runRequestWithInternalServerError();
diff --git a/test/notification/apsProperties.js b/test/notification/apsProperties.js
index c3f65ceb..9801a483 100644
--- a/test/notification/apsProperties.js
+++ b/test/notification/apsProperties.js
@@ -367,7 +367,10 @@ describe('Notification', function () {
     describe('subtitleLocKey', function () {
       it('sets the aps.alert.subtitle-loc-key property', function () {
         note.subtitleLocKey = 'Warning';
-        expect(compiledOutput()).to.have.nested.deep.property('aps.alert.subtitle-loc-key', 'Warning');
+        expect(compiledOutput()).to.have.nested.deep.property(
+          'aps.alert.subtitle-loc-key',
+          'Warning'
+        );
       });
 
       context('alert is already an object', function () {
diff --git a/test/notification/index.js b/test/notification/index.js
index 2929e46e..3849817e 100644
--- a/test/notification/index.js
+++ b/test/notification/index.js
@@ -169,6 +169,22 @@ describe('Notification', function () {
       });
     });
 
+    context('requestId is set', function () {
+      it('contains the apns-request-id header', function () {
+        note.requestId = 'io.apn.request';
+
+        expect(note.headers()).to.have.property('apns-request-id', 'io.apn.request');
+      });
+    });
+
+    context('channelId is set', function () {
+      it('contains the apns-request-id header', function () {
+        note.channelId = 'io.apn.channel';
+
+        expect(note.headers()).to.have.property('apns-channel-id', 'io.apn.channel');
+      });
+    });
+
     context('pushType is set', function () {
       it('contains the apns-push-type header', function () {
         note.pushType = 'alert';