Version 4 (V4) of the AWS SDK for .NET has been released\$1

For information about breaking changes and migrating your applications, see the [migration topic](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html).

 [https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html)

# API reference for the AWS SDK for .NET
API reference

The AWS SDK for .NET provides an API that you can use to access AWS services. To see what classes and methods are available in the API, see the [AWS SDK for .NET API Reference](https://docs.aws.amazon.com/sdkfornet/v4/apidocs/).

In addition to the general reference given above, each of the examples under the [Guided code examplesHigh-level libraries and frameworks](tutorials-examples.md) section contains references to the specific methods and classes that are used in that example.

## About API reference versions


The API reference described earlier is for version 3.0 and later of the AWS SDK for .NET.

For information about migrating from older versions of the SDK, see [Migrating your project](net-dg-migrating.md)

To find deprecated content for earlier versions of the SDK API reference, see the following item(s):
+ [AWS SDK for .NET API Reference V1 (deprecated)](samples/sdkfornet-api-ref_v1_deprecated.zip)
+ [AWS SDK for .NET API Reference V2 (deprecated)](samples/sdkfornet-api-ref_v2_deprecated.zip)

To view a deprecated AWS SDK for .NET API reference, you will need to extract it and configure a web browser. The instructions shown next are examples of how to do this. They are based on using the Google Chrome web browser on a Windows system. Adapt them to your specific web browser and operating system.

### View the deprecated API Reference V1


1. Download the ZIP file for the deprecated AWS SDK for .NET API Reference V1. By default, the name of the ZIP file is `sdkfornet-api-ref_v1_deprecated.zip`. That name will be used throughout these instructions.

1. Place the ZIP file in a folder of your choice. For these instructions, the folder name is assumed to be `C:\work\temp\api-refs\V1`.

1. Right-click on the ZIP file and choose **Extract All**. Accept the default location, which is `C:\work\temp\api-refs\V1\sdkfornet-api-ref_v1` for these instructions.

1. Create a shortcut for Google Chrome in the `C:\work\temp\api-refs\V1` folder. Be careful not to move the original application.

1. In the properties of the new shortcut, set the following fields:
   + **Target**: `"<path to the Google Chrome application>" --disable-web-security --user-data-dir=C:\work\temp\api-refs\V1\data "C:\work\temp\api-refs\V1\sdkfornet-api-ref_v1\Index.html"`

     For the `--user-data-dir` argument, use a folder name that works for your environment. The folder doesn't have to exist.
   + **Start in**: `C:\work\temp\api-refs\V1`

1. Give the shortcut an appropriate name.

1. Open the shortcut to view the old API reference.

### View the deprecated API Reference V2


1. Download the ZIP file for the deprecated AWS SDK for .NET API Reference V2. By default, the name of the ZIP file is `sdkfornet-api-ref_v2_deprecated.zip`. That name will be used throughout these instructions.

1. Place the ZIP file in a folder of your choice. For these instructions, the folder name is assumed to be `C:\work\temp\api-refs\V2`.

1. Right-click on the ZIP file and choose **Extract All**. Accept the default location, which is `C:\work\temp\api-refs\V2\sdkfornet-api-ref_v2` for these instructions.

1. Create a shortcut for Google Chrome in the `C:\work\temp\api-refs\V2` folder. Be careful not to move the original application.

1. In the properties of the new shortcut, set the following fields:
   + **Target**: `"<path to the Google Chrome application>" --disable-web-security --user-data-dir=C:\work\temp\api-refs\V2\data "C:\work\temp\api-refs\V2\sdkfornet-api-ref_v2\Index.html"`

     For the `--user-data-dir` argument, use a folder name that works for your environment. The folder doesn't have to exist.
   + **Start in**: `C:\work\temp\api-refs\V2`

1. Give the shortcut an appropriate name.

1. Open the shortcut to view the old API reference.