May system events (Azure#50134)

Author: JoshLove-msft

sdk/eventgrid/Azure.Messaging.EventGrid.SystemEvents/CHANGELOG.md

@@ -1,14 +1,11 @@
 # Release History
 
-## 1.0.0-beta.3 (Unreleased)
+## 1.0.0-beta.3 (2025-05-19)
 
 ### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- Added new communication events.
+- Added new API management events.
+- Add `EdgeSolutionVersionPublishedEventData` Edge event.
 
 ## 1.0.0-beta.2 (2025-02-21)
 

sdk/eventgrid/Azure.Messaging.EventGrid.SystemEvents/api/Azure.Messaging.EventGrid.SystemEvents.net8.0.cs

@@ -0,0 +1,15 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using Azure.Core;
+
+namespace Azure.Messaging.EventGrid.SystemEvents
+{
+    public partial class AcsCallEndedEventData
+    {
+        /// <summary> Duration of the call. </summary>
+        [CodeGenMember("CallDurationInSeconds")]
+        public TimeSpan? CallDuration { get; }
+    }
+}