Update release notes

releasenotes.md

@@ -1,4 +1,4 @@
-# Release 2.0-preview
+# Release 2.0.2-preview
 
 ## Breaking Changes
 - Refactor of ITaskHubWorkerBuilder interface and extension methods.
@@ -10,3 +10,11 @@
 - DI ObjectFactory used for improved performance
 - Support for func middleware and interface activities.
 - Update to DTFx 2.4.0, add `ILoggerFactory` while building.
+
+# Release 2.0.7-preview
+
+# Additions
+- Added support for open generics with [#14](https://github.com/jviau/durabletask-hosting/pull/14).
+   - When enqueing a closed form for an open generic, use `Type.FullName` as the orchestration/activity name.
+   - `OrchestrationContext` will use `Type.FullName` by default.
+   - `TaskHubClient` will not - it must be explicitly provided.