AWS Lambda durable execution SDK for .NET is now generally available

Today, AWS announces the general availability of the AWS Lambda Durable Execution SDK for .NET, empowering C# developers to build resilient, long-running workflows using Lambda durable functions. With this SDK, developers can create multi-step applications like payment processing pipelines, AI agent orchestration, and human-in-the-loop approvals directly in their applications without implementing custom progress tracking or integrating external orchestration services.

Lambda durable functions extend Lambda's event-driven programming model with operations that checkpoint progress automatically and pause execution for up to a year when waiting on external events. The AWS Lambda Durable Execution SDK for .NET provides an idiomatic C# experience for building with Lambda durable functions. It includes steps for progress tracking, callback integration for human and agent-in-the-loop workflows, durable invocation for reliable function chaining, and waits for efficient suspension. The SDK installs from NuGet into the .NET toolchain you use today. The local testing emulator in the SDK enables developers to build and debug locally before deploying to production.

To get started, see the Lambda durable functions developer guide and the AWS Lambda Durable Execution SDK for .NET on NuGet. For Regional availability and pricing details, see the AWS Regional Services List and AWS Lambda Pricing.