diff --git a/discovery/youtube-v3.json b/discovery/youtube-v3.json
index ac111201fa..e416fd11df 100644
--- a/discovery/youtube-v3.json
+++ b/discovery/youtube-v3.json
@@ -1757,7 +1757,7 @@
             },
             "maxResults": {
               "default": "500",
-              "description": "The *maxResults* parameter specifies the maximum number of items that should be returned in the result set.",
+              "description": "The *maxResults* parameter specifies the maximum number of items that should be returned in the result set. Not used in the streaming RPC.",
               "format": "uint32",
               "location": "query",
               "maximum": "2000",
@@ -4072,7 +4072,7 @@
       }
     }
   },
-  "revision": "20240926",
+  "revision": "20241203",
   "rootUrl": "https://youtube.googleapis.com/",
   "schemas": {
     "AbuseReport": {
@@ -5551,6 +5551,10 @@
           "$ref": "ChannelToStoreLinkDetailsBillingDetails",
           "description": "Information specific to billing (read-only)."
         },
+        "merchantAffiliateProgramDetails": {
+          "$ref": "ChannelToStoreLinkDetailsMerchantAffiliateProgramDetails",
+          "description": "Information specific to merchant affiliate program (read-only)."
+        },
         "merchantId": {
           "description": "Google Merchant Center id of the store.",
           "format": "uint64",
@@ -5590,6 +5594,29 @@
       },
       "type": "object"
     },
+    "ChannelToStoreLinkDetailsMerchantAffiliateProgramDetails": {
+      "description": "Information specific to merchant affiliate program.",
+      "id": "ChannelToStoreLinkDetailsMerchantAffiliateProgramDetails",
+      "properties": {
+        "status": {
+          "description": "The current merchant affiliate program status.",
+          "enum": [
+            "merchantAffiliateProgramStatusUnspecified",
+            "merchantAffiliateProgramStatusEligible",
+            "merchantAffiliateProgramStatusActive",
+            "merchantAffiliateProgramStatusPaused"
+          ],
+          "enumDescriptions": [
+            "Unspecified status.",
+            "Merchant is eligible for the merchant affiliate program.",
+            "Merchant affiliate program is active.",
+            "Merchant affiliate program is paused."
+          ],
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
     "ChannelTopicDetails": {
       "description": "Freebase topic information related to the channel.",
       "id": "ChannelTopicDetails",
@@ -8057,7 +8084,7 @@
       "type": "object"
     },
     "InvideoBranding": {
-      "description": "LINT.IfChange Describes an invideo branding.",
+      "description": "Describes an invideo branding.",
       "id": "InvideoBranding",
       "properties": {
         "imageBytes": {
@@ -8071,6 +8098,7 @@
         },
         "position": {
           "$ref": "InvideoPosition",
+          "deprecated": true,
           "description": "The spatial position within the video where the branding watermark will be displayed."
         },
         "targetChannelId": {
@@ -10014,7 +10042,7 @@
         },
         "kind": {
           "default": "youtube#playlistItemListResponse",
-          "description": "Identifies what kind of resource this is. Value: the fixed string \"youtube#playlistItemListResponse\". Etag of this resource.",
+          "description": "Identifies what kind of resource this is. Value: the fixed string \"youtube#playlistItemListResponse\".",
           "type": "string"
         },
         "nextPageToken": {
@@ -10762,6 +10790,10 @@
     "TestItem": {
       "id": "TestItem",
       "properties": {
+        "etag": {
+          "description": "Etag for the resource. See https://en.wikipedia.org/wiki/HTTP_ETag.",
+          "type": "string"
+        },
         "featuredPart": {
           "type": "boolean"
         },
@@ -11639,7 +11671,7 @@
           "type": "string"
         },
         "scheduledEndTime": {
-          "description": "The time that the broadcast is scheduled to end. If the value is empty or the property is not present, then the broadcast is scheduled to contiue indefinitely.",
+          "description": "The time that the broadcast is scheduled to end. If the value is empty or the property is not present, then the broadcast is scheduled to continue indefinitely.",
           "format": "date-time",
           "type": "string"
         },
@@ -11952,6 +11984,10 @@
       "description": "Basic details about a video category, such as its localized title. Next Id: 19",
       "id": "VideoStatus",
       "properties": {
+        "containsSyntheticMedia": {
+          "description": "Indicates if the video contains altered or synthetic media.",
+          "type": "boolean"
+        },
         "embeddable": {
           "description": "This value indicates if the video can be embedded on another website. @mutable youtube.videos.insert youtube.videos.update",
           "type": "boolean"
diff --git a/src/apis/youtube/v3.ts b/src/apis/youtube/v3.ts
index bbbc613a33..5b94774c0f 100644
--- a/src/apis/youtube/v3.ts
+++ b/src/apis/youtube/v3.ts
@@ -1146,6 +1146,10 @@ export namespace youtube_v3 {
      * Information specific to billing (read-only).
      */
     billingDetails?: Schema$ChannelToStoreLinkDetailsBillingDetails;
+    /**
+     * Information specific to merchant affiliate program (read-only).
+     */
+    merchantAffiliateProgramDetails?: Schema$ChannelToStoreLinkDetailsMerchantAffiliateProgramDetails;
     /**
      * Google Merchant Center id of the store.
      */
@@ -1168,6 +1172,15 @@ export namespace youtube_v3 {
      */
     billingStatus?: string | null;
   }
+  /**
+   * Information specific to merchant affiliate program.
+   */
+  export interface Schema$ChannelToStoreLinkDetailsMerchantAffiliateProgramDetails {
+    /**
+     * The current merchant affiliate program status.
+     */
+    status?: string | null;
+  }
   /**
    * A *comment* represents a single YouTube comment.
    */
@@ -1965,7 +1978,7 @@ export namespace youtube_v3 {
     streamName?: string | null;
   }
   /**
-   * LINT.IfChange Describes an invideo branding.
+   * Describes an invideo branding.
    */
   export interface Schema$InvideoBranding {
     /**
@@ -3172,7 +3185,7 @@ export namespace youtube_v3 {
      */
     items?: Schema$PlaylistItem[];
     /**
-     * Identifies what kind of resource this is. Value: the fixed string "youtube#playlistItemListResponse". Etag of this resource.
+     * Identifies what kind of resource this is. Value: the fixed string "youtube#playlistItemListResponse".
      */
     kind?: string | null;
     /**
@@ -3721,6 +3734,10 @@ export namespace youtube_v3 {
     stickerId?: string | null;
   }
   export interface Schema$TestItem {
+    /**
+     * Etag for the resource. See https://en.wikipedia.org/wiki/HTTP_ETag.
+     */
+    etag?: string | null;
     featuredPart?: boolean | null;
     gaia?: string | null;
     id?: string | null;
@@ -4332,7 +4349,7 @@ export namespace youtube_v3 {
      */
     concurrentViewers?: string | null;
     /**
-     * The time that the broadcast is scheduled to end. If the value is empty or the property is not present, then the broadcast is scheduled to contiue indefinitely.
+     * The time that the broadcast is scheduled to end. If the value is empty or the property is not present, then the broadcast is scheduled to continue indefinitely.
      */
     scheduledEndTime?: string | null;
     /**
@@ -4555,6 +4572,10 @@ export namespace youtube_v3 {
    * Basic details about a video category, such as its localized title. Next Id: 19
    */
   export interface Schema$VideoStatus {
+    /**
+     * Indicates if the video contains altered or synthetic media.
+     */
+    containsSyntheticMedia?: boolean | null;
     /**
      * This value indicates if the video can be embedded on another website. @mutable youtube.videos.insert youtube.videos.update
      */
@@ -8788,7 +8809,7 @@ export namespace youtube_v3 {
      */
     liveChatId?: string;
     /**
-     * The *maxResults* parameter specifies the maximum number of items that should be returned in the result set.
+     * The *maxResults* parameter specifies the maximum number of items that should be returned in the result set. Not used in the streaming RPC.
      */
     maxResults?: number;
     /**