Migrate Az.Functions from AutoRest PowerShell v3 to v4

src/Functions/Functions.Autorest/Properties/AssemblyInfo.cs

@@ -24,3 +24,19 @@
 [assembly: System.Reflection.AssemblyVersionAttribute("4.3.1")]
 [assembly: System.Runtime.InteropServices.ComVisibleAttribute(false)]
 [assembly: System.CLSCompliantAttribute(false)]
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src/Functions/Functions.Autorest/README.md

@@ -48,7 +48,7 @@ In this directory, run AutoRest:
 ``` yaml
 # For new modules, please avoid setting 3.x using the use-extension method and instead, use 4.x as the default option
 use-extension:
-  "@autorest/powershell": "3.x"
+  "@autorest/powershell": "4.x"
 
 directive:
   - suppress: XmsResourceInPutResponse
@@ -127,6 +127,8 @@ directive:
   - remove-operation: WebApps_GetProductionSiteDeploymentStatus
   - remove-operation: WebApps_GetSlotSiteDeploymentStatusSlot
   - remove-operation: Workflows_RegenerateAccessKey
+  # Prevent generation of StorageAccounts cmdlet — Functions uses custom Storage helper for Flex Consumption
+  - remove-operation: StorageAccounts_Update
   - from: WebApps.json
     where: $.paths["/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Web/sites/{name}/privateEndpointConnections/{privateEndpointConnectionName}"].delete.responses.200
     transform: delete $.schema
@@ -566,19 +568,19 @@ directive:
       subject: App
     set:
       preview-announcement:
-        preview-message: "*****************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n**************************************************************************************************"
+        preview-message: "*******************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n*******************************************************************************************"
   - where:
       verb: New
       subject: App|AppPlan
     set:
       preview-announcement:
-        preview-message: "*****************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n**************************************************************************************************"
+        preview-message: "*******************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n*******************************************************************************************"
   - where:
       verb: Get|Remove|Update
       subject: App|AppPlan|AppSetting
     set:
       preview-announcement:
-        preview-message: "*****************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n**************************************************************************************************"
+        preview-message: "*******************************************************************************************\\r\\n* This cmdlet will undergo a breaking change in Az v16.0.0, to be released in May 2026.           *\\r\\n* At least one change applies to this cmdlet.                                                    *\\r\\n* See all possible breaking changes at https://go.microsoft.com/fwlink/?linkid=2333486            *\\r\\n*******************************************************************************************"
 ```
 
 ``` yaml

src/Functions/Functions.Autorest/custom/Functions.format.ps1xml

@@ -4,7 +4,7 @@
         <View>
             <Name>FunctionApp</Name>
             <ViewSelectedBy>
-                <TypeName>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Api20231201.Site</TypeName>
+                <TypeName>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Site</TypeName>
             </ViewSelectedBy>
             <TableControl>
                 <TableHeaders>
@@ -36,7 +36,7 @@
         <View>
             <Name>FunctionAppPlan</Name>
             <ViewSelectedBy>
-                <TypeName>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Api20231201.AppServicePlan</TypeName>
+                <TypeName>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.AppServicePlan</TypeName>
             </ViewSelectedBy>
             <TableControl>
                 <TableHeaders>

src/Functions/Functions.Autorest/custom/Functions.types.ps1xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <Types>
     <Type>
-    <Name>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Api20231201.Site</Name>
+    <Name>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Site</Name>
         <Members>
             <AliasProperty>
                 <Name>Status</Name>
@@ -27,7 +27,7 @@
         </Members>
     </Type>
     <Type>
-    <Name>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.Api20231201.AppServicePlan</Name>
+    <Name>Microsoft.Azure.PowerShell.Cmdlets.Functions.Models.AppServicePlan</Name>
         <Members>
             <AliasProperty>
                 <Name>ResourceGroupName</Name>