Merge pull request #47867 from ausfeldt/patch-25

added preview and preview2 to release notes

Author: PRMerger19

articles/cosmos-db/sql-api-sdk-dotnet-core.md

@@ -49,6 +49,18 @@ ms.custom: H1Hack27Feb2017
 
 The Azure Cosmos DB .NET Core SDK has feature parity with the latest version of the [Azure Cosmos DB .NET SDK](sql-api-sdk-dotnet.md).
 
+### <a name="2.0.0-preview2"/>2.0.0-preview2
+
+* Added request cancellation support.
+* Added SetCurrentLocation to ConnectionPolicy, which automatically populates the preferred locations based on the region.
+* Fixed Bug in Cross Partition Queries with Min/Max and a filter that matches no documents on an individual partition.
+
+### <a name="2.0.0-preview"/>2.0.0-preview
+
+* DocumentClient methods now have parity with IDocumentClient.
+* Updated direct TCP transport stack to reduce the number of connections established.
+* Added support for Direct Mode TCP for non-Windows clients.
+
 ### <a name="1.10.0"/>1.10.0
 
 * Added ConsistencyLevel Property to FeedOptions.
@@ -170,6 +182,8 @@ If you have questions related to this SDK, post to [StackOverflow](http://stacko
 
 | Version | Release Date | Retirement Date |
 | --- | --- | --- |
+| [2.0.0-preview2](#2.0.0-preview2) |July 26, 2018 |--- |
+| [2.0.0-preview](#2.0.0-preview) |May 11, 2018 |--- |
 | [1.9.1](#1.9.1) |March 09, 2018 |--- |
 | [1.8.2](#1.8.2) |February 21, 2018 |--- |
 | [1.8.1](#1.8.1) |February 05, 2018 |--- |