diff --git a/sdk/eventgrid/eventgrid/CHANGELOG.md b/sdk/eventgrid/eventgrid/CHANGELOG.md
index 5c7cb0f51d61..136e989144e9 100644
--- a/sdk/eventgrid/eventgrid/CHANGELOG.md
+++ b/sdk/eventgrid/eventgrid/CHANGELOG.md
@@ -1,15 +1,18 @@
 # Release History
 
-## 5.8.1 (Unreleased)
+## 5.9.0 (2024-12-02)
 
 ### Features Added
 
-### Breaking Changes
+- Added new System Events:
 
-### Bugs Fixed
+  - `Microsoft.ResourceNotifications.ContainerServiceEventResources.ScheduledEventEmitted`
 
 ### Other Changes
 
+- A new property `policyRunSummary` has been added to `StorageLifecyclePolicyCompletedEventData` interface.
+- New properties `StorageLifecycleCompletionStatus` and `KnownStorageLifecycleCompletionStatus` have been added.
+
 ## 5.8.0 (2024-10-14)
 
 ### Other Changes
diff --git a/sdk/eventgrid/eventgrid/package.json b/sdk/eventgrid/eventgrid/package.json
index d5354267b974..44d6e80e9aa6 100644
--- a/sdk/eventgrid/eventgrid/package.json
+++ b/sdk/eventgrid/eventgrid/package.json
@@ -3,7 +3,7 @@
   "sdk-type": "client",
   "author": "Microsoft Corporation",
   "description": "An isomorphic client library for the Azure Event Grid service.",
-  "version": "5.8.1",
+  "version": "5.9.0",
   "keywords": [
     "node",
     "azure",
diff --git a/sdk/eventgrid/eventgrid/review/eventgrid.api.md b/sdk/eventgrid/eventgrid/review/eventgrid.api.md
index dbfb5ff31c49..7ab9306f6a13 100644
--- a/sdk/eventgrid/eventgrid/review/eventgrid.api.md
+++ b/sdk/eventgrid/eventgrid/review/eventgrid.api.md
@@ -1846,6 +1846,16 @@ export const enum KnownStampKind {
     Public = "Public"
 }
 
+// @public
+export const enum KnownStorageLifecycleCompletionStatus {
+    // (undocumented)
+    Completed = "Completed",
+    // (undocumented)
+    CompletedWithError = "CompletedWithError",
+    // (undocumented)
+    Incomplete = "Incomplete"
+}
+
 // @public
 export const enum KnownStorageTaskAssignmentCompletedStatus {
     // (undocumented)
@@ -2340,6 +2350,9 @@ export interface ResourceHttpRequest {
     url: string;
 }
 
+// @public
+export type ResourceNotificationsContainerServiceEventResourcesScheduledEventData = ResourceNotificationsResourceUpdatedEventData & {};
+
 // @public
 export type ResourceNotificationsHealthResourcesAnnotatedEventData = ResourceNotificationsResourceUpdatedEventData & {};
 
@@ -2614,6 +2627,9 @@ export interface StorageDirectoryRenamedEventData {
     storageDiagnostics: any;
 }
 
+// @public
+export type StorageLifecycleCompletionStatus = string;
+
 // @public
 export interface StorageLifecyclePolicyActionSummaryDetail {
     errorList: string;
@@ -2624,12 +2640,18 @@ export interface StorageLifecyclePolicyActionSummaryDetail {
 // @public
 export interface StorageLifecyclePolicyCompletedEventData {
     deleteSummary: StorageLifecyclePolicyActionSummaryDetail;
+    policyRunSummary: StorageLifecyclePolicyRunSummary;
     scheduleTime: string;
     tierToArchiveSummary: StorageLifecyclePolicyActionSummaryDetail;
     tierToColdSummary: StorageLifecyclePolicyActionSummaryDetail;
     tierToCoolSummary: StorageLifecyclePolicyActionSummaryDetail;
 }
 
+// @public
+export interface StorageLifecyclePolicyRunSummary {
+    completionStatus: StorageLifecycleCompletionStatus;
+}
+
 // @public
 export interface StorageTaskAssignmentCompletedEventData {
     completedOn: string;
@@ -2847,6 +2869,7 @@ export interface SystemEventNameToEventData {
     "Microsoft.PolicyInsights.PolicyStateChanged ": PolicyInsightsPolicyStateChangedEventData;
     "Microsoft.PolicyInsights.PolicyStateCreated": PolicyInsightsPolicyStateCreatedEventData;
     "Microsoft.PolicyInsights.PolicyStateDeleted": PolicyInsightsPolicyStateDeletedEventData;
+    "Microsoft.ResourceNotifications.ContainerServiceEventResources.ScheduledEventEmitted": ResourceNotificationsContainerServiceEventResourcesScheduledEventData;
     "Microsoft.ResourceNotifications.HealthResources.AvailabilityStatusChanged": ResourceNotificationsHealthResourcesAvailabilityStatusChangedEventData;
     "Microsoft.ResourceNotifications.HealthResources.ResourceAnnotated": ResourceNotificationsHealthResourcesAnnotatedEventData;
     "Microsoft.ResourceNotifications.Resources.CreatedOrUpdated": ResourceNotificationsResourceManagementCreatedOrUpdatedEventData;
diff --git a/sdk/eventgrid/eventgrid/src/generated/generatedClientContext.ts b/sdk/eventgrid/eventgrid/src/generated/generatedClientContext.ts
index 9480de15b34d..cdb624538a57 100644
--- a/sdk/eventgrid/eventgrid/src/generated/generatedClientContext.ts
+++ b/sdk/eventgrid/eventgrid/src/generated/generatedClientContext.ts
@@ -26,7 +26,7 @@ export class GeneratedClientContext extends coreClient.ServiceClient {
       requestContentType: "application/json; charset=utf-8"
     };
 
-    const packageDetails = `azsdk-js-eventgrid/5.8.1`;
+    const packageDetails = `azsdk-js-eventgrid/5.9.0`;
     const userAgentPrefix =
       options.userAgentOptions && options.userAgentOptions.userAgentPrefix
         ? `${options.userAgentOptions.userAgentPrefix} ${packageDetails}`
diff --git a/sdk/eventgrid/eventgrid/src/generated/models/index.ts b/sdk/eventgrid/eventgrid/src/generated/models/index.ts
index d83a52e39971..2dc00e6f267c 100644
--- a/sdk/eventgrid/eventgrid/src/generated/models/index.ts
+++ b/sdk/eventgrid/eventgrid/src/generated/models/index.ts
@@ -195,6 +195,8 @@ export interface StorageDirectoryRenamedEventData {
 export interface StorageLifecyclePolicyCompletedEventData {
   /** The time the policy task was scheduled. */
   scheduleTime: string;
+  /** Policy run status of an account in a Blob Management cycle. */
+  policyRunSummary: StorageLifecyclePolicyRunSummary;
   /** Execution statistics of a specific policy action in a Blob Management cycle. */
   deleteSummary: StorageLifecyclePolicyActionSummaryDetail;
   /** Execution statistics of a specific policy action in a Blob Management cycle. */
@@ -205,6 +207,12 @@ export interface StorageLifecyclePolicyCompletedEventData {
   tierToArchiveSummary: StorageLifecyclePolicyActionSummaryDetail;
 }
 
+/** Policy run status of an account in a Blob Management cycle. */
+export interface StorageLifecyclePolicyRunSummary {
+  /** Policy status can be Completed/CompletedWithError/Incomplete. */
+  completionStatus: StorageLifecycleCompletionStatus;
+}
+
 /** Execution statistics of a specific policy action in a Blob Management cycle. */
 export interface StorageLifecyclePolicyActionSummaryDetail {
   /** Total number of objects to be acted on by this action. */
@@ -3153,6 +3161,9 @@ export type ResourceNotificationsHealthResourcesAnnotatedEventData = ResourceNot
 /** Schema of the Data property of an EventGridEvent for a Microsoft.ResourceNotifications.Resources.CreatedOrUpdated event. */
 export type ResourceNotificationsResourceManagementCreatedOrUpdatedEventData = ResourceNotificationsResourceUpdatedEventData & {};
 
+/** Schema of the Data property of an event grid event for a Microsoft.ResourceNotifications.ContainerServiceEventResources.ScheduledEventEmitted preview event. */
+export type ResourceNotificationsContainerServiceEventResourcesScheduledEventData = ResourceNotificationsResourceUpdatedEventData & {};
+
 /** Schema of the Data property of an EventGridEvent for a Microsoft.ResourceNotifications.Resources.Deleted event. */
 export type ResourceNotificationsResourceManagementDeletedEventData = ResourceNotificationsResourceDeletedEventData & {};
 
@@ -3559,6 +3570,24 @@ export const enum KnownStorageBlobAccessTier {
  */
 export type StorageBlobAccessTier = string;
 
+/** Known values of {@link StorageLifecycleCompletionStatus} that the service accepts. */
+export const enum KnownStorageLifecycleCompletionStatus {
+  Completed = "Completed",
+  CompletedWithError = "CompletedWithError",
+  Incomplete = "Incomplete"
+}
+
+/**
+ * Defines values for StorageLifecycleCompletionStatus. \
+ * {@link KnownStorageLifecycleCompletionStatus} can be used interchangeably with StorageLifecycleCompletionStatus,
+ *  this enum contains the known values that the service supports.
+ * ### Known values supported by the service
+ * **Completed** \
+ * **CompletedWithError** \
+ * **Incomplete**
+ */
+export type StorageLifecycleCompletionStatus = string;
+
 /** Known values of {@link StorageTaskCompletedStatus} that the service accepts. */
 export const enum KnownStorageTaskCompletedStatus {
   Succeeded = "Succeeded",
diff --git a/sdk/eventgrid/eventgrid/src/generated/models/mappers.ts b/sdk/eventgrid/eventgrid/src/generated/models/mappers.ts
index aeb087d024b1..1978e918fa6e 100644
--- a/sdk/eventgrid/eventgrid/src/generated/models/mappers.ts
+++ b/sdk/eventgrid/eventgrid/src/generated/models/mappers.ts
@@ -578,6 +578,13 @@ export const StorageLifecyclePolicyCompletedEventData: coreClient.CompositeMappe
           name: "String"
         }
       },
+      policyRunSummary: {
+        serializedName: "policyRunSummary",
+        type: {
+          name: "Composite",
+          className: "StorageLifecyclePolicyRunSummary"
+        }
+      },
       deleteSummary: {
         serializedName: "deleteSummary",
         type: {
@@ -610,6 +617,22 @@ export const StorageLifecyclePolicyCompletedEventData: coreClient.CompositeMappe
   }
 };
 
+export const StorageLifecyclePolicyRunSummary: coreClient.CompositeMapper = {
+  type: {
+    name: "Composite",
+    className: "StorageLifecyclePolicyRunSummary",
+    modelProperties: {
+      completionStatus: {
+        serializedName: "completionStatus",
+        required: true,
+        type: {
+          name: "String"
+        }
+      }
+    }
+  }
+};
+
 export const StorageLifecyclePolicyActionSummaryDetail: coreClient.CompositeMapper = {
   type: {
     name: "Composite",
@@ -9320,6 +9343,17 @@ export const ResourceNotificationsResourceManagementCreatedOrUpdatedEventData: c
   }
 };
 
+export const ResourceNotificationsContainerServiceEventResourcesScheduledEventData: coreClient.CompositeMapper = {
+  type: {
+    name: "Composite",
+    className:
+      "ResourceNotificationsContainerServiceEventResourcesScheduledEventData",
+    modelProperties: {
+      ...ResourceNotificationsResourceUpdatedEventData.type.modelProperties
+    }
+  }
+};
+
 export const ResourceNotificationsResourceManagementDeletedEventData: coreClient.CompositeMapper = {
   type: {
     name: "Composite",
diff --git a/sdk/eventgrid/eventgrid/src/index.ts b/sdk/eventgrid/eventgrid/src/index.ts
index a547c39f366d..0080b989c0df 100644
--- a/sdk/eventgrid/eventgrid/src/index.ts
+++ b/sdk/eventgrid/eventgrid/src/index.ts
@@ -369,4 +369,8 @@ export {
   AcsChatThreadPropertiesUpdatedEventData,
   AcsChatThreadEventInThreadBase,
   StorageBlobAccessTier,
+  ResourceNotificationsContainerServiceEventResourcesScheduledEventData,
+  StorageLifecyclePolicyRunSummary,
+  StorageLifecycleCompletionStatus,
+  KnownStorageLifecycleCompletionStatus,
 } from "./generated/models/index.js";
diff --git a/sdk/eventgrid/eventgrid/src/predicates.ts b/sdk/eventgrid/eventgrid/src/predicates.ts
index c52e047b7db3..543186a20228 100644
--- a/sdk/eventgrid/eventgrid/src/predicates.ts
+++ b/sdk/eventgrid/eventgrid/src/predicates.ts
@@ -212,6 +212,7 @@ import type {
   AcsChatThreadDeletedEventData,
   AcsChatThreadCreatedEventData,
   AcsChatThreadPropertiesUpdatedEventData,
+  ResourceNotificationsContainerServiceEventResourcesScheduledEventData,
 } from "./generated/models/index.js";
 
 import type { CloudEvent, EventGridEvent } from "./models.js";
@@ -646,6 +647,8 @@ export interface SystemEventNameToEventData {
   "Microsoft.Communication.ChatThreadDeleted": AcsChatThreadDeletedEventData;
   /** An interface for the event data of a "Microsoft.Communication.ChatThreadPropertiesUpdated" event. */
   "Microsoft.Communication.ChatThreadPropertiesUpdated": AcsChatThreadPropertiesUpdatedEventData;
+  /** An interface for the event data of a "Microsoft.ResourceNotifications.ContainerServiceEventResources.ScheduledEventEmitted" event. */
+  "Microsoft.ResourceNotifications.ContainerServiceEventResources.ScheduledEventEmitted": ResourceNotificationsContainerServiceEventResourcesScheduledEventData;
 }
 
 /**
diff --git a/sdk/eventgrid/eventgrid/src/tracing.ts b/sdk/eventgrid/eventgrid/src/tracing.ts
index 2f74bbf0bba3..e54e92a4cb95 100644
--- a/sdk/eventgrid/eventgrid/src/tracing.ts
+++ b/sdk/eventgrid/eventgrid/src/tracing.ts
@@ -10,5 +10,5 @@ import { createTracingClient } from "@azure/core-tracing";
 export const tracingClient = createTracingClient({
   namespace: "Microsoft.Messaging.EventGrid",
   packageName: "@azure/event-grid",
-  packageVersion: "5.8.1",
+  packageVersion: "5.9.0",
 });
diff --git a/sdk/eventgrid/eventgrid/swagger/README.md b/sdk/eventgrid/eventgrid/swagger/README.md
index 65915d4dc0ca..a262f1405450 100644
--- a/sdk/eventgrid/eventgrid/swagger/README.md
+++ b/sdk/eventgrid/eventgrid/swagger/README.md
@@ -5,9 +5,9 @@
 ## Configuration
 
 ```yaml
-require: "https://github.com/Azure/azure-rest-api-specs/blob/012021c786c360e0c34faf7af888c7fd7dbe2df5/specification/eventgrid/data-plane/readme.md"
+require: "https://github.com/Azure/azure-rest-api-specs/blob/fb64eaa0dfc7ee8abc8e10369495729d5b3c1cc5/specification/eventgrid/data-plane/readme.md"
 package-name: "@azure/eventgrid"
-package-version: "5.8.1"
+package-version: "5.9.0"
 title: GeneratedClient
 description: EventGrid Client
 generate-metadata: false