# Microsoft.Extensions.Configuration.KeyPerFile

``` diff
 namespace Microsoft.Extensions.Configuration.KeyPerFile {
-    public class KeyPerFileConfigurationProvider : ConfigurationProvider {
+    public class KeyPerFileConfigurationProvider : ConfigurationProvider, IDisposable {
+        public void Dispose();
     }
     public class KeyPerFileConfigurationSource : IConfigurationSource {
+        public int ReloadDelay { get; set; }
+        public bool ReloadOnChange { get; set; }
     }
 }
```

