diff --git a/schemas/annotated-v1.0-Prod.csdl b/schemas/annotated-v1.0-Prod.csdl
index 6c948ddf..48f1b6cb 100644
--- a/schemas/annotated-v1.0-Prod.csdl
+++ b/schemas/annotated-v1.0-Prod.csdl
@@ -6292,6 +6292,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -20075,6 +20077,9 @@
       <Action Name="instantiate" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.applicationTemplate" />
         <Parameter Name="displayName" Type="Edm.String" Unicode="false" />
+        <Parameter Name="serviceManagementReference" Type="Edm.String" Unicode="false">
+          <Annotation Term="Org.OData.Core.V1.OptionalParameter" />
+        </Parameter>
         <ReturnType Type="graph.applicationServicePrincipal" />
       </Action>
       <Action Name="int" IsBound="true">
@@ -25955,6 +25960,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectSupport">
           <Record>
             <PropertyValue Property="Supported" Bool="false" />
@@ -26021,6 +26031,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>
@@ -35384,6 +35399,11 @@
             <PropertyValue Property="Filterable" Bool="true" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectSupport">
           <Record>
             <PropertyValue Property="Supported" Bool="true" />
diff --git a/schemas/v1.0-Fairfax.csdl b/schemas/v1.0-Fairfax.csdl
index 8c386308..81ec53ff 100644
--- a/schemas/v1.0-Fairfax.csdl
+++ b/schemas/v1.0-Fairfax.csdl
@@ -4936,6 +4936,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -20936,6 +20938,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="false" />
@@ -21002,6 +21009,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>
@@ -29458,6 +29470,11 @@
             <PropertyValue Property="Filterable" Bool="true" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="true" />
diff --git a/schemas/v1.0-Mooncake.csdl b/schemas/v1.0-Mooncake.csdl
index e87ad2f5..aa8c5293 100644
--- a/schemas/v1.0-Mooncake.csdl
+++ b/schemas/v1.0-Mooncake.csdl
@@ -2894,6 +2894,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -12775,6 +12777,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="false" />
@@ -12841,6 +12848,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>
@@ -20189,6 +20201,11 @@
             <PropertyValue Property="Filterable" Bool="true" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="true" />
diff --git a/schemas/v1.0-Prod.csdl b/schemas/v1.0-Prod.csdl
index 6c948ddf..48f1b6cb 100644
--- a/schemas/v1.0-Prod.csdl
+++ b/schemas/v1.0-Prod.csdl
@@ -6292,6 +6292,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -20075,6 +20077,9 @@
       <Action Name="instantiate" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.applicationTemplate" />
         <Parameter Name="displayName" Type="Edm.String" Unicode="false" />
+        <Parameter Name="serviceManagementReference" Type="Edm.String" Unicode="false">
+          <Annotation Term="Org.OData.Core.V1.OptionalParameter" />
+        </Parameter>
         <ReturnType Type="graph.applicationServicePrincipal" />
       </Action>
       <Action Name="int" IsBound="true">
@@ -25955,6 +25960,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectSupport">
           <Record>
             <PropertyValue Property="Supported" Bool="false" />
@@ -26021,6 +26031,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>
@@ -35384,6 +35399,11 @@
             <PropertyValue Property="Filterable" Bool="true" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectSupport">
           <Record>
             <PropertyValue Property="Supported" Bool="true" />
diff --git a/schemas/v1.0-USNat.csdl b/schemas/v1.0-USNat.csdl
index 844553b5..39508bc2 100644
--- a/schemas/v1.0-USNat.csdl
+++ b/schemas/v1.0-USNat.csdl
@@ -1166,6 +1166,12 @@
         <Member Name="pager" Value="8" />
         <Member Name="radio" Value="9" />
       </EnumType>
+      <EnumType Name="postType">
+        <Member Name="regular" Value="0" />
+        <Member Name="quick" Value="1" />
+        <Member Name="strategic" Value="2" />
+        <Member Name="unknownFutureValue" Value="3" />
+      </EnumType>
       <EnumType Name="privilegedAccessGroupAssignmentType">
         <Member Name="assigned" Value="1" />
         <Member Name="activated" Value="2" />
@@ -1495,6 +1501,49 @@
         <Member Name="auto" Value="2" />
         <Member Name="unknownFutureValue" Value="3" />
       </EnumType>
+      <EnumType Name="serviceHealthClassificationType">
+        <Member Name="advisory" Value="1" />
+        <Member Name="incident" Value="2" />
+        <Member Name="unknownFutureValue" Value="3" />
+      </EnumType>
+      <EnumType Name="serviceHealthOrigin">
+        <Member Name="microsoft" Value="1" />
+        <Member Name="thirdParty" Value="2" />
+        <Member Name="customer" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
+      <EnumType Name="serviceHealthStatus">
+        <Member Name="serviceOperational" Value="0" />
+        <Member Name="investigating" Value="1" />
+        <Member Name="restoringService" Value="2" />
+        <Member Name="verifyingService" Value="3" />
+        <Member Name="serviceRestored" Value="4" />
+        <Member Name="postIncidentReviewPublished" Value="5" />
+        <Member Name="serviceDegradation" Value="6" />
+        <Member Name="serviceInterruption" Value="7" />
+        <Member Name="extendedRecovery" Value="8" />
+        <Member Name="falsePositive" Value="9" />
+        <Member Name="investigationSuspended" Value="10" />
+        <Member Name="resolved" Value="11" />
+        <Member Name="mitigatedExternal" Value="12" />
+        <Member Name="mitigated" Value="13" />
+        <Member Name="resolvedExternal" Value="14" />
+        <Member Name="confirmed" Value="15" />
+        <Member Name="reported" Value="16" />
+        <Member Name="unknownFutureValue" Value="17" />
+      </EnumType>
+      <EnumType Name="serviceUpdateCategory">
+        <Member Name="preventOrFixIssue" Value="1" />
+        <Member Name="planForChange" Value="2" />
+        <Member Name="stayInformed" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
+      <EnumType Name="serviceUpdateSeverity">
+        <Member Name="normal" Value="1" />
+        <Member Name="high" Value="2" />
+        <Member Name="critical" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
       <EnumType Name="sharingCapabilities">
         <Member Name="disabled" Value="0" />
         <Member Name="externalUserSharingOnly" Value="1" />
@@ -2474,6 +2523,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -4036,6 +4087,11 @@
         <Property Name="links" Type="Collection(graph.metaDataKeyStringPair)" />
         <Property Name="searchablePlainTexts" Type="Collection(graph.metaDataKeyStringPair)" />
       </ComplexType>
+      <ComplexType Name="serviceHealthIssuePost">
+        <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="description" Type="graph.itemBody" />
+        <Property Name="postType" Type="graph.postType" />
+      </ComplexType>
       <ComplexType Name="serviceHostedMediaConfig" BaseType="graph.mediaConfig">
         <Property Name="preFetchMedia" Type="Collection(graph.mediaInfo)" />
       </ComplexType>
@@ -4055,6 +4111,11 @@
         <Property Name="isEnabled" Type="Edm.Boolean" Nullable="false" />
         <Property Name="tokenEncryptionKeyId" Type="Edm.Boolean" />
       </ComplexType>
+      <ComplexType Name="serviceUpdateMessageViewpoint">
+        <Property Name="isArchived" Type="Edm.Boolean" />
+        <Property Name="isFavorited" Type="Edm.Boolean" />
+        <Property Name="isRead" Type="Edm.Boolean" />
+      </ComplexType>
       <ComplexType Name="settingTemplateValue">
         <Property Name="defaultValue" Type="Edm.String" />
         <Property Name="description" Type="Edm.String" />
@@ -4900,6 +4961,7 @@
       <EntityType Name="activityBasedTimeoutPolicy" BaseType="graph.stsPolicy" />
       <EntityType Name="admin">
         <NavigationProperty Name="people" Type="graph.peopleAdminSettings" ContainsTarget="true" />
+        <NavigationProperty Name="serviceAnnouncement" Type="graph.serviceAnnouncement" ContainsTarget="true" />
       </EntityType>
       <EntityType Name="adminConsentRequestPolicy" BaseType="graph.entity">
         <Property Name="isEnabled" Type="Edm.Boolean" Nullable="false" />
@@ -7106,6 +7168,41 @@
         <Property Name="helpWebUrl" Type="Edm.String" />
         <Property Name="isMandatory" Type="Edm.Boolean" />
       </EntityType>
+      <EntityType Name="serviceAnnouncement" BaseType="graph.entity">
+        <NavigationProperty Name="healthOverviews" Type="Collection(graph.serviceHealth)" ContainsTarget="true" />
+        <NavigationProperty Name="issues" Type="Collection(graph.serviceHealthIssue)" ContainsTarget="true" />
+        <NavigationProperty Name="messages" Type="Collection(graph.serviceUpdateMessage)" ContainsTarget="true" />
+      </EntityType>
+      <EntityType Name="serviceAnnouncementAttachment" BaseType="graph.entity">
+        <Property Name="content" Type="Edm.Stream" />
+        <Property Name="contentType" Type="Edm.String" />
+        <Property Name="lastModifiedDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="name" Type="Edm.String" />
+        <Property Name="size" Type="Edm.Int32" Nullable="false" />
+      </EntityType>
+      <EntityType Name="serviceAnnouncementBase" BaseType="graph.entity" Abstract="true">
+        <Property Name="details" Type="Collection(graph.keyValuePair)" />
+        <Property Name="endDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="lastModifiedDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="startDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="title" Type="Edm.String" Nullable="false" />
+      </EntityType>
+      <EntityType Name="serviceHealth" BaseType="graph.entity">
+        <Property Name="service" Type="Edm.String" Nullable="false" />
+        <Property Name="status" Type="graph.serviceHealthStatus" Nullable="false" />
+        <NavigationProperty Name="issues" Type="Collection(graph.serviceHealthIssue)" ContainsTarget="true" />
+      </EntityType>
+      <EntityType Name="serviceHealthIssue" BaseType="graph.serviceAnnouncementBase">
+        <Property Name="classification" Type="graph.serviceHealthClassificationType" Nullable="false" />
+        <Property Name="feature" Type="Edm.String" />
+        <Property Name="featureGroup" Type="Edm.String" />
+        <Property Name="impactDescription" Type="Edm.String" Nullable="false" />
+        <Property Name="isResolved" Type="Edm.Boolean" Nullable="false" />
+        <Property Name="origin" Type="graph.serviceHealthOrigin" Nullable="false" />
+        <Property Name="posts" Type="Collection(graph.serviceHealthIssuePost)" Nullable="false" />
+        <Property Name="service" Type="Edm.String" Nullable="false" />
+        <Property Name="status" Type="graph.serviceHealthStatus" Nullable="false" />
+      </EntityType>
       <EntityType Name="servicePrincipal" BaseType="graph.directoryObject" OpenType="true">
         <Property Name="accountEnabled" Type="Edm.Boolean" />
         <Property Name="addIns" Type="Collection(graph.addIn)" Nullable="false" />
@@ -7192,6 +7289,19 @@
         <Property Name="source" Type="Edm.String" />
         <Property Name="tokenIssuerType" Type="graph.tokenIssuerType" />
       </EntityType>
+      <EntityType Name="serviceUpdateMessage" BaseType="graph.serviceAnnouncementBase">
+        <Property Name="actionRequiredByDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="attachmentsArchive" Type="Edm.Stream" />
+        <Property Name="body" Type="graph.itemBody" Nullable="false" />
+        <Property Name="category" Type="graph.serviceUpdateCategory" Nullable="false" />
+        <Property Name="hasAttachments" Type="Edm.Boolean" Nullable="false" />
+        <Property Name="isMajorChange" Type="Edm.Boolean" />
+        <Property Name="services" Type="Collection(Edm.String)" />
+        <Property Name="severity" Type="graph.serviceUpdateSeverity" Nullable="false" />
+        <Property Name="tags" Type="Collection(Edm.String)" />
+        <Property Name="viewPoint" Type="graph.serviceUpdateMessageViewpoint" />
+        <NavigationProperty Name="attachments" Type="Collection(graph.serviceAnnouncementAttachment)" ContainsTarget="true" />
+      </EntityType>
       <EntityType Name="sharedDriveItem" BaseType="graph.baseItem">
         <Property Name="owner" Type="graph.identitySet" />
         <NavigationProperty Name="driveItem" Type="graph.driveItem" ContainsTarget="true" />
@@ -7953,6 +8063,11 @@
       <Action Name="applyDecisions" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.accessReviewInstance" />
       </Action>
+      <Action Name="archive" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="archive" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.channel" />
         <Parameter Name="shouldSetSpoSiteReadOnlyForMembers" Type="Edm.Boolean" />
@@ -8242,6 +8357,11 @@
         <Parameter Name="bindparameter" Type="graph.driveItem" />
         <ReturnType Type="graph.extractSensitivityLabelsResult" />
       </Action>
+      <Action Name="favorite" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="follow" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.driveItem" />
         <ReturnType Type="graph.driveItem" />
@@ -8381,6 +8501,16 @@
         <Parameter Name="user" Type="graph.teamworkUserIdentity" />
         <Parameter Name="lastMessageReadDateTime" Type="Edm.DateTimeOffset" />
       </Action>
+      <Action Name="markRead" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
+      <Action Name="markUnread" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="move" EntitySetPath="bindingParameter" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.mailFolder" />
         <Parameter Name="DestinationId" Type="Edm.String" Nullable="false" Unicode="false" />
@@ -8688,6 +8818,11 @@
         <Parameter Name="SourceIdType" Type="graph.exchangeIdFormat" Nullable="false" />
         <ReturnType Type="Collection(graph.convertIdResult)" Nullable="false" />
       </Action>
+      <Action Name="unarchive" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="unarchive" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.channel" />
       </Action>
@@ -8700,6 +8835,11 @@
       <Action Name="undoSoftDelete" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.chatMessage" />
       </Action>
+      <Action Name="unfavorite" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="unfollow" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.driveItem" />
       </Action>
@@ -9063,6 +9203,10 @@
         <Parameter Name="bindingParameter" Type="Collection(graph.licenseDetails)" />
         <ReturnType Type="graph.teamsLicensingDetails" />
       </Function>
+      <Function Name="incidentReport" IsBound="true">
+        <Parameter Name="bindingParameter" Type="graph.serviceHealthIssue" />
+        <ReturnType Type="Edm.Stream" />
+      </Function>
       <Function Name="isPublished" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.contentType" />
         <ReturnType Type="Edm.Boolean" Nullable="false" />
@@ -9836,6 +9980,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="false" />
@@ -9887,6 +10036,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>
diff --git a/schemas/v1.0-USSec.csdl b/schemas/v1.0-USSec.csdl
index d7901e5e..a6da0f6b 100644
--- a/schemas/v1.0-USSec.csdl
+++ b/schemas/v1.0-USSec.csdl
@@ -1120,6 +1120,12 @@
         <Member Name="pager" Value="8" />
         <Member Name="radio" Value="9" />
       </EnumType>
+      <EnumType Name="postType">
+        <Member Name="regular" Value="0" />
+        <Member Name="quick" Value="1" />
+        <Member Name="strategic" Value="2" />
+        <Member Name="unknownFutureValue" Value="3" />
+      </EnumType>
       <EnumType Name="privilegedAccessGroupAssignmentType">
         <Member Name="assigned" Value="1" />
         <Member Name="activated" Value="2" />
@@ -1421,6 +1427,49 @@
         <Member Name="auto" Value="2" />
         <Member Name="unknownFutureValue" Value="3" />
       </EnumType>
+      <EnumType Name="serviceHealthClassificationType">
+        <Member Name="advisory" Value="1" />
+        <Member Name="incident" Value="2" />
+        <Member Name="unknownFutureValue" Value="3" />
+      </EnumType>
+      <EnumType Name="serviceHealthOrigin">
+        <Member Name="microsoft" Value="1" />
+        <Member Name="thirdParty" Value="2" />
+        <Member Name="customer" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
+      <EnumType Name="serviceHealthStatus">
+        <Member Name="serviceOperational" Value="0" />
+        <Member Name="investigating" Value="1" />
+        <Member Name="restoringService" Value="2" />
+        <Member Name="verifyingService" Value="3" />
+        <Member Name="serviceRestored" Value="4" />
+        <Member Name="postIncidentReviewPublished" Value="5" />
+        <Member Name="serviceDegradation" Value="6" />
+        <Member Name="serviceInterruption" Value="7" />
+        <Member Name="extendedRecovery" Value="8" />
+        <Member Name="falsePositive" Value="9" />
+        <Member Name="investigationSuspended" Value="10" />
+        <Member Name="resolved" Value="11" />
+        <Member Name="mitigatedExternal" Value="12" />
+        <Member Name="mitigated" Value="13" />
+        <Member Name="resolvedExternal" Value="14" />
+        <Member Name="confirmed" Value="15" />
+        <Member Name="reported" Value="16" />
+        <Member Name="unknownFutureValue" Value="17" />
+      </EnumType>
+      <EnumType Name="serviceUpdateCategory">
+        <Member Name="preventOrFixIssue" Value="1" />
+        <Member Name="planForChange" Value="2" />
+        <Member Name="stayInformed" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
+      <EnumType Name="serviceUpdateSeverity">
+        <Member Name="normal" Value="1" />
+        <Member Name="high" Value="2" />
+        <Member Name="critical" Value="3" />
+        <Member Name="unknownFutureValue" Value="4" />
+      </EnumType>
       <EnumType Name="sharingCapabilities">
         <Member Name="disabled" Value="0" />
         <Member Name="externalUserSharingOnly" Value="1" />
@@ -2388,6 +2437,8 @@
       </ComplexType>
       <ComplexType Name="chatMessageReaction">
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="displayName" Type="Edm.String" />
+        <Property Name="reactionContentUrl" Type="Edm.String" />
         <Property Name="reactionType" Type="Edm.String" Nullable="false" />
         <Property Name="user" Type="graph.chatMessageReactionIdentitySet" Nullable="false" />
       </ComplexType>
@@ -3744,6 +3795,11 @@
         <Property Name="links" Type="Collection(graph.metaDataKeyStringPair)" />
         <Property Name="searchablePlainTexts" Type="Collection(graph.metaDataKeyStringPair)" />
       </ComplexType>
+      <ComplexType Name="serviceHealthIssuePost">
+        <Property Name="createdDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="description" Type="graph.itemBody" />
+        <Property Name="postType" Type="graph.postType" />
+      </ComplexType>
       <ComplexType Name="serviceHostedMediaConfig" BaseType="graph.mediaConfig">
         <Property Name="preFetchMedia" Type="Collection(graph.mediaInfo)" />
       </ComplexType>
@@ -3763,6 +3819,11 @@
         <Property Name="isEnabled" Type="Edm.Boolean" Nullable="false" />
         <Property Name="tokenEncryptionKeyId" Type="Edm.Boolean" />
       </ComplexType>
+      <ComplexType Name="serviceUpdateMessageViewpoint">
+        <Property Name="isArchived" Type="Edm.Boolean" />
+        <Property Name="isFavorited" Type="Edm.Boolean" />
+        <Property Name="isRead" Type="Edm.Boolean" />
+      </ComplexType>
       <ComplexType Name="settingTemplateValue">
         <Property Name="defaultValue" Type="Edm.String" />
         <Property Name="description" Type="Edm.String" />
@@ -4622,6 +4683,7 @@
       <EntityType Name="activityBasedTimeoutPolicy" BaseType="graph.stsPolicy" />
       <EntityType Name="admin">
         <NavigationProperty Name="people" Type="graph.peopleAdminSettings" ContainsTarget="true" />
+        <NavigationProperty Name="serviceAnnouncement" Type="graph.serviceAnnouncement" ContainsTarget="true" />
       </EntityType>
       <EntityType Name="adminConsentRequestPolicy" BaseType="graph.entity">
         <Property Name="isEnabled" Type="Edm.Boolean" Nullable="false" />
@@ -6711,6 +6773,41 @@
         <NavigationProperty Name="secureScoreControlProfiles" Type="Collection(graph.secureScoreControlProfile)" ContainsTarget="true" />
         <NavigationProperty Name="secureScores" Type="Collection(graph.secureScore)" ContainsTarget="true" />
       </EntityType>
+      <EntityType Name="serviceAnnouncement" BaseType="graph.entity">
+        <NavigationProperty Name="healthOverviews" Type="Collection(graph.serviceHealth)" ContainsTarget="true" />
+        <NavigationProperty Name="issues" Type="Collection(graph.serviceHealthIssue)" ContainsTarget="true" />
+        <NavigationProperty Name="messages" Type="Collection(graph.serviceUpdateMessage)" ContainsTarget="true" />
+      </EntityType>
+      <EntityType Name="serviceAnnouncementAttachment" BaseType="graph.entity">
+        <Property Name="content" Type="Edm.Stream" />
+        <Property Name="contentType" Type="Edm.String" />
+        <Property Name="lastModifiedDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="name" Type="Edm.String" />
+        <Property Name="size" Type="Edm.Int32" Nullable="false" />
+      </EntityType>
+      <EntityType Name="serviceAnnouncementBase" BaseType="graph.entity" Abstract="true">
+        <Property Name="details" Type="Collection(graph.keyValuePair)" />
+        <Property Name="endDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="lastModifiedDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="startDateTime" Type="Edm.DateTimeOffset" Nullable="false" />
+        <Property Name="title" Type="Edm.String" Nullable="false" />
+      </EntityType>
+      <EntityType Name="serviceHealth" BaseType="graph.entity">
+        <Property Name="service" Type="Edm.String" Nullable="false" />
+        <Property Name="status" Type="graph.serviceHealthStatus" Nullable="false" />
+        <NavigationProperty Name="issues" Type="Collection(graph.serviceHealthIssue)" ContainsTarget="true" />
+      </EntityType>
+      <EntityType Name="serviceHealthIssue" BaseType="graph.serviceAnnouncementBase">
+        <Property Name="classification" Type="graph.serviceHealthClassificationType" Nullable="false" />
+        <Property Name="feature" Type="Edm.String" />
+        <Property Name="featureGroup" Type="Edm.String" />
+        <Property Name="impactDescription" Type="Edm.String" Nullable="false" />
+        <Property Name="isResolved" Type="Edm.Boolean" Nullable="false" />
+        <Property Name="origin" Type="graph.serviceHealthOrigin" Nullable="false" />
+        <Property Name="posts" Type="Collection(graph.serviceHealthIssuePost)" Nullable="false" />
+        <Property Name="service" Type="Edm.String" Nullable="false" />
+        <Property Name="status" Type="graph.serviceHealthStatus" Nullable="false" />
+      </EntityType>
       <EntityType Name="servicePrincipal" BaseType="graph.directoryObject" OpenType="true">
         <Property Name="accountEnabled" Type="Edm.Boolean" />
         <Property Name="addIns" Type="Collection(graph.addIn)" Nullable="false" />
@@ -6797,6 +6894,19 @@
         <Property Name="source" Type="Edm.String" />
         <Property Name="tokenIssuerType" Type="graph.tokenIssuerType" />
       </EntityType>
+      <EntityType Name="serviceUpdateMessage" BaseType="graph.serviceAnnouncementBase">
+        <Property Name="actionRequiredByDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="attachmentsArchive" Type="Edm.Stream" />
+        <Property Name="body" Type="graph.itemBody" Nullable="false" />
+        <Property Name="category" Type="graph.serviceUpdateCategory" Nullable="false" />
+        <Property Name="hasAttachments" Type="Edm.Boolean" Nullable="false" />
+        <Property Name="isMajorChange" Type="Edm.Boolean" />
+        <Property Name="services" Type="Collection(Edm.String)" />
+        <Property Name="severity" Type="graph.serviceUpdateSeverity" Nullable="false" />
+        <Property Name="tags" Type="Collection(Edm.String)" />
+        <Property Name="viewPoint" Type="graph.serviceUpdateMessageViewpoint" />
+        <NavigationProperty Name="attachments" Type="Collection(graph.serviceAnnouncementAttachment)" ContainsTarget="true" />
+      </EntityType>
       <EntityType Name="sharedDriveItem" BaseType="graph.baseItem">
         <Property Name="owner" Type="graph.identitySet" />
         <NavigationProperty Name="driveItem" Type="graph.driveItem" ContainsTarget="true" />
@@ -7554,6 +7664,11 @@
       <Action Name="applyDecisions" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.accessReviewInstance" />
       </Action>
+      <Action Name="archive" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="archive" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.channel" />
         <Parameter Name="shouldSetSpoSiteReadOnlyForMembers" Type="Edm.Boolean" />
@@ -7809,6 +7924,11 @@
         <Parameter Name="bindparameter" Type="graph.driveItem" />
         <ReturnType Type="graph.extractSensitivityLabelsResult" />
       </Action>
+      <Action Name="favorite" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="follow" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.driveItem" />
         <ReturnType Type="graph.driveItem" />
@@ -7941,6 +8061,16 @@
         <Parameter Name="user" Type="graph.teamworkUserIdentity" />
         <Parameter Name="lastMessageReadDateTime" Type="Edm.DateTimeOffset" />
       </Action>
+      <Action Name="markRead" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
+      <Action Name="markUnread" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="move" EntitySetPath="bindingParameter" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.mailFolder" />
         <Parameter Name="DestinationId" Type="Edm.String" Nullable="false" Unicode="false" />
@@ -8249,6 +8379,11 @@
         <Parameter Name="SourceIdType" Type="graph.exchangeIdFormat" Nullable="false" />
         <ReturnType Type="Collection(graph.convertIdResult)" Nullable="false" />
       </Action>
+      <Action Name="unarchive" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="unarchive" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.channel" />
       </Action>
@@ -8261,6 +8396,11 @@
       <Action Name="undoSoftDelete" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.chatMessage" />
       </Action>
+      <Action Name="unfavorite" IsBound="true">
+        <Parameter Name="bindingParameter" Type="Collection(graph.serviceUpdateMessage)" />
+        <Parameter Name="messageIds" Type="Collection(Edm.String)" Unicode="false" />
+        <ReturnType Type="Edm.Boolean" />
+      </Action>
       <Action Name="unfollow" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.driveItem" />
       </Action>
@@ -8624,6 +8764,10 @@
         <Parameter Name="bindingParameter" Type="Collection(graph.licenseDetails)" />
         <ReturnType Type="graph.teamsLicensingDetails" />
       </Function>
+      <Function Name="incidentReport" IsBound="true">
+        <Parameter Name="bindingParameter" Type="graph.serviceHealthIssue" />
+        <ReturnType Type="Edm.Stream" />
+      </Function>
       <Function Name="isPublished" IsBound="true">
         <Parameter Name="bindingParameter" Type="graph.contentType" />
         <ReturnType Type="Edm.Boolean" Nullable="false" />
@@ -9396,6 +9540,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SelectRestrictions">
           <Record>
             <PropertyValue Property="Selectable" Bool="false" />
@@ -9447,6 +9596,11 @@
             <PropertyValue Property="Insertable" Bool="false" />
           </Record>
         </Annotation>
+        <Annotation Term="Org.OData.Capabilities.V1.NavigationRestrictions">
+          <Record>
+            <PropertyValue Property="Referenceable" Bool="false" />
+          </Record>
+        </Annotation>
         <Annotation Term="Org.OData.Capabilities.V1.SkipSupported" Bool="false" />
         <Annotation Term="Org.OData.Capabilities.V1.SortRestrictions">
           <Record>