diff --git a/sdk/eventgrid/azure-eventgrid/CHANGELOG.md b/sdk/eventgrid/azure-eventgrid/CHANGELOG.md
index cf88dfb32d41..d0f5965f119f 100644
--- a/sdk/eventgrid/azure-eventgrid/CHANGELOG.md
+++ b/sdk/eventgrid/azure-eventgrid/CHANGELOG.md
@@ -1,14 +1,10 @@
 # Release History
 
-## 4.21.1 (Unreleased)
+## 4.22.0 (2025-05-14)
 
 ### Features Added
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- Added new enum values to `SystemEventNames` related to Azure Communication Services and Azure Edge.
 
 ## 4.21.0 (2024-11-19)
 
diff --git a/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_legacy/_event_mappings.py b/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_legacy/_event_mappings.py
index bdd1b51a3b13..934fa0517023 100644
--- a/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_legacy/_event_mappings.py
+++ b/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_legacy/_event_mappings.py
@@ -61,6 +61,16 @@ class SystemEventNames(str, Enum, metaclass=CaseInsensitiveEnumMeta):
 
     AcsAdvancedMessageReceivedEventName = "Microsoft.Communication.AdvancedMessageReceived"
 
+    AcsCallEndedEventName = "Microsoft.Communication.CallEnded"
+
+    AcsCallParticipantAddedEventName = "Microsoft.Communication.CallParticipantAdded"
+
+    AcsCallParticipantRemovedEventName = "Microsoft.Communication.CallParticipantRemoved"
+
+    AcsCallStartedEventName = "Microsoft.Communication.CallStarted"
+
+    AcsChatAzureBotCommandReceivedInThreadEventName = "Microsoft.Communication.ChatAzureBotCommandReceivedInThread"
+
     AcsChatMessageDeletedEventName = "Microsoft.Communication.ChatMessageDeleted"
 
     AcsChatMessageDeletedInThreadEventName = "Microsoft.Communication.ChatMessageDeletedInThread"
@@ -95,6 +105,8 @@ class SystemEventNames(str, Enum, metaclass=CaseInsensitiveEnumMeta):
 
     AcsChatThreadWithUserDeletedEventName = "Microsoft.Communication.ChatThreadWithUserDeleted"
 
+    AcsChatTypingIndicatorReceivedInThreadEventName = "Microsoft.Communication.ChatTypingIndicatorReceivedInThread"
+
     AcsEmailDeliveryReportReceivedEventName = "Microsoft.Communication.EmailDeliveryReportReceived"
 
     AcsEmailEngagementTrackingReportReceivedEventName = "Microsoft.Communication.EmailEngagementTrackingReportReceived"
@@ -169,6 +181,10 @@ class SystemEventNames(str, Enum, metaclass=CaseInsensitiveEnumMeta):
 
     ApiManagementApiUpdatedEventName = "Microsoft.ApiManagement.APIUpdated"
 
+    ApiManagementCircuitBreakerClosedEventName = "Microsoft.ApiManagement.CircuitBreaker.Closed"
+
+    ApiManagementCircuitBreakerOpenedEventName = "Microsoft.ApiManagement.CircuitBreaker.Opened"
+
     ApiManagementGatewayApiAddedEventName = "Microsoft.ApiManagement.GatewayAPIAdded"
 
     ApiManagementGatewayApiRemovedEventName = "Microsoft.ApiManagement.GatewayAPIRemoved"
@@ -201,6 +217,10 @@ class SystemEventNames(str, Enum, metaclass=CaseInsensitiveEnumMeta):
         "Microsoft.ApiManagement.GatewayHostnameConfigurationUpdated"
     )
 
+    ApiManagementGatewayTokenExpiredEventName = "Microsoft.ApiManagement.GatewayTokenExpired"
+
+    ApiManagementGatewayTokenNearExpiryEventName = "Microsoft.ApiManagement.GatewayTokenNearExpiry"
+
     ApiManagementGatewayUpdatedEventName = "Microsoft.ApiManagement.GatewayUpdated"
 
     ApiManagementProductCreatedEventName = "Microsoft.ApiManagement.ProductCreated"
@@ -279,6 +299,8 @@ class SystemEventNames(str, Enum, metaclass=CaseInsensitiveEnumMeta):
 
     DataBoxOrderCompletedEventName = "Microsoft.DataBox.OrderCompleted"
 
+    EdgeSolutionVersionPublishedEventName = "Microsoft.Edge.SolutionVersionPublished"
+
     EventGridMQTTClientCreatedOrUpdatedEventName = "Microsoft.EventGrid.MQTTClientCreatedOrUpdated"
 
     EventGridMQTTClientDeletedEventName = "Microsoft.EventGrid.MQTTClientDeleted"
diff --git a/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_version.py b/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_version.py
index 5b0fb6c42327..215940119a6c 100644
--- a/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_version.py
+++ b/sdk/eventgrid/azure-eventgrid/azure/eventgrid/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "4.21.1"
+VERSION = "4.22.0"
diff --git a/sdk/eventgrid/azure-eventgrid/swagger/_constants.py b/sdk/eventgrid/azure-eventgrid/swagger/_constants.py
index 14e790d924c2..d38d04039264 100644
--- a/sdk/eventgrid/azure-eventgrid/swagger/_constants.py
+++ b/sdk/eventgrid/azure-eventgrid/swagger/_constants.py
@@ -30,6 +30,7 @@
     "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/eventgrid/data-plane/Microsoft.Web/stable/2018-01-01/Web.json",
     "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/eventgrid/data-plane/Microsoft.HealthcareApis/stable/2018-01-01/HealthcareApis.json",
     "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/eventgrid/data-plane/Microsoft.ApiCenter/stable/2018-01-01/ApiCenter.json",
+    "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/main/specification/eventgrid/data-plane/Microsoft.Edge/stable/2018-01-01/Edge.json",
 ]
 
 
@@ -80,6 +81,7 @@
     "AvsPrivateCloudEventData",
     "AvsScriptExecutionEventData",
     "AcsMessageEventData",
+    "AcsCallParticipantEventData",
 ]
 
 NAMING_CHANGES = ["AcsMessageDeliveryStatusUpdatedEventName", "AcsMessageReceivedEventName"]