add preliminary April updates to whats-new

Author: PatrickFarley

articles/cognitive-services/form-recognizer/whats-new.md

@@ -20,6 +20,15 @@ The Form Recognizer service is updated on an ongoing basis. Use this article to
 > [!NOTE]
 > The quickstarts and guides for Form Recognizer always use the latest version of the API, unless specified.
 
+## April 2020
+
+### New features
+* **SDK support for Form Recognizer API v2.0 Public Preview** This month we expanded our service support to include a preview SDK for Form Recognizer v2.0 (preview) release.
+
+  The new SDK supports all the features of the v2.0 REST API for Form Recognizer. For example, you can train a model with or without labels and extract text, key value pairs and tables from your forms, extract data from receipts with the pre-built receipts service and extract text and tables with the layout service from your documents. You can share your feedback on the SDKs here. 
+ 
+* **Copy Custom Model** You can now copy models between regions and subscriptions using the new Copy Custom Model feature. Before invoking the Copy Custom Model API, you must first obtain authorization to copy into the target resource by calling the Copy Authorization operation against the target resource endpoint.
+
 ## March 2020 
 
 ### New features