[FormRecognizer] Preview 3: updating changelog

sdk/formrecognizer/Azure.AI.FormRecognizer/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.0.0-preview.3 (Unreleased)
+## 1.0.0-preview.3 (06-09-2020)
 
 ### Renames
 
@@ -25,7 +25,6 @@
 - `RecognizeReceiptsOperation` now returns a `RecognizedReceiptCollection`.
 - `RecognizeCustomFormsOperation` now returns a `RecognizedFormCollection`.
 - In preparation for service-side changes, `FieldValue.AsInt32` has been replaced by `FieldValue.AsInt64`, which returns a `long`.
-- The order of the values for `USReceiptType` have changed so that `Other` has now a value of `1`.
 - Parameter `useTrainingLabels` is now required for `FormTrainingClient.StartTraining`.
 - Protected constructors have been removed from `Operation` types, such as `TrainingOperation` or `RecognizeContentOperation`.
 - `USReceipt`, `USReceiptItem`, `USReceiptType` and `FormField{T}` types removed. Information about a `RecognizedReceipt` must now be extracted from its `RecognizedForm`.
@@ -34,6 +33,7 @@
 - A `RequestFailedException` is now raised if a model with `status=="invalid"` is returned from the `StartTraining` and `StartTrainingAsync` methods.
 - A `RequestFailedException` is now raised if an operation like `StartRecognizeReceipts` or `StartRecognizeContent` fails.
 - An `InvalidOperationException` is now raised if trying to access the `Value` property of a `xxOperation` object when the executed operation failed.
+- Method `GetFormTrainingClient` has been removed from `FormRecognizerClient` and `GetFormRecognizerClient` has been added to `FormTrainingClient`.
 
 ### New Features