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AWS SDK for .NET V3 Reaches End-of-Support

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deprecation

AWS SDK for .NET V3 has officially reached end-of-support as of June 1, 2026, following its entry into maintenance mode on March 1, 2026. This means there will be no further updates, including security fixes or support for new AWS services. Customers still using V3 are strongly encouraged to migrate to V4, which offers performance enhancements, bug fixes, and ongoing support for AWS services.

  • AWS SDK for .NET V3 End-of-Support
  • Migration to AWS SDK for .NET V4 Recommended
Deprecations (1)
  • AWS SDK for .NET V3 End-of-Support

    Version 3 of the AWS SDK for .NET has reached end-of-support as of June 1, 2026. No further updates, including security fixes or support for new AWS services and features, will be provided for V3. Existing applications will continue to function but will not receive security patches or bug fixes.

Notes (1)
  • Migration to AWS SDK for .NET V4 Recommended

    Customers are strongly encouraged to migrate to AWS SDK for .NET V4 to ensure continued support, security patches, and access to new AWS services. A migration guide is available to help with the process, and users can seek assistance via GitHub issues and discussion forums for any encountered problems.

Read the original announcement →

https://aws.amazon.com/blogs/developer/aws-sdk-for-net-v3-end-of-support-announcement/

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