Add platformReleaseChannel enum and property to SiteProperties in TypeSpec (2025-05-01)

Author: sarsharma

specification/web/resource-manager/Microsoft.Web/AppService/models.tsp

@@ -1045,6 +1045,19 @@ enum RedundancyMode {
   GeoRedundant,
 }
 
+/**
+ * The platform release channel for the site.
+ */
+@added(Versions.v2025_05_01)
+enum PlatformReleaseChannel {
+  /** Latest receives updates earliest. */
+  Latest,
+  /** Standard receives updates after Latest. */
+  Standard,
+  /** Extended receives updates last with extended support. */
+  Extended,
+}
+
 /**
  * Specifies the scope of uniqueness for the default hostname during resource creation
  */
@@ -2374,6 +2387,12 @@ model SiteProperties {
    */
   @visibility(Lifecycle.Read)
   sku?: string;
+
+  /**
+   * The platform release channel for the site. Latest receives updates earliest, followed by Standard, then Extended.
+   */
+  @added(Versions.v2025_05_01)
+  platformReleaseChannel?: PlatformReleaseChannel;
 }
 
 /**