AWS .NET Modernization Tools availability change

Porting Assistant (PA) for .NET, AWS App2Container (A2C), AWS Toolkit for .NET Refactoring (TR), and AWS Microservice Extractor (ME) for .NET will stop accepting new customers starting November 7, 2025. AWS Transform, launched in 2025, is our next-generation service that provides enhanced capabilities for modernization with AI-driven automation. Existing Porting Assistant (PA) for .NET, AWS App2Container (A2C), AWS Toolkit for .NET Refactoring (TR), and AWS Microservice Extractor (ME) for .NET customers can continue using the service to complete their ongoing modernization projects. All current .NET Modernization Tools features, including Porting Assistant for .NET, AWS App2Container, AWS Toolkit for .NET Refactoring, and AWS Microservice Extractor for .NET, are available in AWS Transform with improved functionality through secure Managed Development Environments and LLM integration.

While we will not be adding new features to the service, we remain committed to providing security updates and maintaining service availability to ensure your ongoing migration projects continue to run smoothly. Our focus is on ensuring a stable environment for existing customers to complete their in-flight projects while preparing for transitioning to the enhanced capabilities available in AWS Transform.

AWS Transform for .NET accelerates large-scale modernization from .NET Framework to cross-platform .NET by up to 4x. With the .NET modernization agent, modernization teams can collaboratively execute larger and more complex projects with consistency, remove Windows license dependencies to reduce operating costs by up to 40%, and enhance code quality, performance, and security.

Existing users can complete their current projects using existing tools, while all new modernization projects can start in AWS Transform. To begin using AWS Transform, see the Getting Started Guide. No data migration or special transition tools are needed, as users can organically switch to AWS Transform for any new work.

If you have additional questions, contact AWS Support or read our FAQs:

• What does this mean for the service (will it be shut down)?

  Porting Assistant (PA) for .NET, AWS App2Container (A2C), AWS Toolkit for .NET Refactoring (TR), and AWS Microservice Extractor (ME) for .NET will stop accepting new customers starting November 7, 2025. The service will continue to operate for existing customers to complete their ongoing migration projects.

• How will existing customers be impacted?

  Existing customers can continue using the service until their in-flight modernization projects are completed. All ongoing projects will remain accessible. No disruption to existing workloads or in-flight modernizations.

• On November 7, 2025, how can I get help if I have issues?

  Customers experiencing issues can contact AWS Support.

• What alternatives can I explore?

  AWS Transform is the recommended alternative. With the .NET modernization agent, modernization teams can collaboratively execute larger and more complex projects with consistency, remove Windows license dependencies to reduce operating costs by up to 40%, and enhance code quality, performance, and security.

• How do I migrate off of .NET Modernization Tools?

  No formal migration process is required. Existing projects can continue in Porting Assistant (PA) for .NET, AWS App2Container (A2C), AWS Toolkit for .NET Refactoring (TR), or AWS Microservice Extractor (ME) for .NET until completion. For new projects, you can start directly in AWS Transform, which provides all the familiar capabilities of .NET Modernization Tools with enhanced features. No data migration is needed, and AWS Support is available to assist with the transition.