# System.Runtime.Versioning

``` diff
 namespace System.Runtime.Versioning {
-    public sealed class ObsoletedInOSPlatformAttribute : OSPlatformAttribute {
-        public ObsoletedInOSPlatformAttribute(string platformName);
-        public ObsoletedInOSPlatformAttribute(string platformName, string? message);
-        public string Message { get; }
-        public string Url { get; set; }
-    }
+    public sealed class ObsoletedOSPlatformAttribute : OSPlatformAttribute {
+        public ObsoletedOSPlatformAttribute(string platformName);
+        public ObsoletedOSPlatformAttribute(string platformName, string? message);
+        public string Message { get; }
+        public string Url { get; set; }
+    }
 }
```

