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
<a name="sdk-api-ref"></a>

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
<a name="about-api-versions"></a>

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
<a name="view-api-reference-v1"></a>

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
<a name="view-api-reference-v2"></a>

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.