The AWS SDK for .NET V3 has entered maintenance mode.

We recommend that you migrate to [AWS SDK for .NET V4](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/welcome.html). For additional details and information on how to migrate, please refer to our [maintenance mode announcement](https://aws.amazon.com/blogs/developer/aws-sdk-for-net-v3-maintenance-mode-announcement/).

# Install and configure your toolchain
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To use the AWS SDK for .NET, you must have certain development tools installed.

## Cross-platform development
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The following are required for cross-platform .NET development on Windows, Linux, or macOS:
+ Microsoft [.NET Core SDK](https://learn.microsoft.com/en-us/dotnet/fundamentals/), version 2.1, 3.1, or later, which includes the .NET command line interface (CLI) (**`dotnet`**) and the .NET Core runtime.
+ A code editor or integrated development environment (IDE) that is appropriate for your operating system and requirements. This is typically one that provides some support for .NET Core.

  Examples include [Microsoft Visual Studio Code (VS Code)](https://code.visualstudio.com/), [JetBrains Rider](https://www.jetbrains.com/rider/), and [Microsoft Visual Studio](https://visualstudio.microsoft.com/vs/).
+ (Optional) An AWS toolkit if one is available for the editor you chose and your operating system.

  Examples include the [AWS Toolkit for Visual Studio Code](https://docs.aws.amazon.com/toolkit-for-vscode/latest/userguide/welcome.html), [AWS Toolkit for JetBrains](https://docs.aws.amazon.com/toolkit-for-jetbrains/latest/userguide/welcome.html), and [AWS Toolkit for Visual Studio](https://docs.aws.amazon.com/toolkit-for-visual-studio/latest/user-guide/welcome.html).

## Windows with Visual Studio and .NET Core
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The following are required for development on Windows with Visual Studio and .NET Core:
+ [Microsoft Visual Studio](https://visualstudio.microsoft.com/vs/)
+ Microsoft .NET Core 2.1, 3.1 or later

  This is typically included by default when installing a recent version of Visual Studio.
+ (Optional) The AWS Toolkit for Visual Studio, which is a plugin that provides a user interface for managing your AWS resources and local profiles from Visual Studio. To install the toolkit, see [Setting up the AWS Toolkit for Visual Studio](https://docs.aws.amazon.com/toolkit-for-visual-studio/latest/user-guide/getting-set-up.html).

  For more information, see the [AWS Toolkit for Visual Studio User Guide](https://docs.aws.amazon.com/toolkit-for-visual-studio/latest/user-guide/).

## Next step
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[Configure SDK authentication with AWS](creds-idc.md)