update changelog and update comments

Author: nytian

CHANGELOG.md

@@ -2,7 +2,8 @@
 
 ## (Unreleased)
 
-- - Add automatic retry on gateway timeout in `GrpcDurableTaskClient.WaitForInstanceCompletionAsync` in [#412](https://github.com/microsoft/durabletask-dotnet/pull/412))
+- Add New Property Properties to TaskOrchestrationContext by @nytian in [#415](https://github.com/microsoft/durabletask-dotnet/pull/415)
+- Add automatic retry on gateway timeout in `GrpcDurableTaskClient.WaitForInstanceCompletionAsync` in [#412](https://github.com/microsoft/durabletask-dotnet/pull/412))
 - Add specific logging for NotFound error on worker connection by @halspang in ([#413](https://github.com/microsoft/durabletask-dotnet/pull/413))
 
 

src/Abstractions/TaskOrchestrationContext.cs

@@ -71,8 +71,7 @@ public abstract class TaskOrchestrationContext
     public abstract IDictionary<string, object?> Properties { get; }
 
     /// <summary>
-    /// Gets the feature for interacting with entities from an orchestration.
-    /// Currently not implemented.
+    /// Gets the entity feature, for interacting with entities.
     /// </summary>
     public virtual TaskOrchestrationEntityFeature Entities =>
         throw new NotSupportedException($"Durable entities are not supported by {this.GetType()}.");