AWS Migration Hub Refactor Spaces is no longer open to new customers as of November 7, 2025. For capabilities similar to AWS Migration Hub Refactor Spaces, explore [AWS Transform](https://aws.amazon.com/transform). # Document history for the Refactor Spaces User Guide The following table describes the documentation releases for AWS Migration Hub Refactor Spaces (Refactor Spaces). | Change | Description | Date | | --- |--- |--- | | [IAM policy update](#doc-history) | Update to the AWS Identity and Access Management (IAM) `AWSMigrationHubRefactorSpacesFullAccess` and `AWSMigrationHubRefactorSpaces-EnvironmentsWithoutBridgesFullAccess` policies. For more information, see [Policy updates](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates). | April 11, 2024 | | [New AWS Migration Hub Refactor Spaces post-launch action in AWS Application Migration Service (AWS MGN)](#doc-history) | AWS MGN now has a new post-launch action that you can use to create Refactor Spaces resources. For more information, see [Tutorial: Using Refactor Spaces with AWS Application Migration Service](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/mgn-tutorial.html). | August 29, 2023 | | [New IAM managed policy](#doc-history) | AWS Migration Hub Refactor Spaces now supports a new `AWSMigrationHubRefactorSpaces-SSMAutomationPolicy` AWS Identity and Access Management (IAM) managed policy. To grant the permissions that are required to run SSM Automation, use this AWS managed policy in the IAM service role passed to the `AWSRefactorSpaces-CreateResources` automation document. For more information, see [AWSMigrationHubRefactorSpaces-SSMAutomationPolicy](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#SSMAutomationPolicy). | August 10, 2023 | | [New Regions](#doc-history) | AWS Migration Hub Refactor Spaces now supports the following additional Regions: US West (N. California), Asia Pacific (Mumbai), Asia Pacific (Osaka), Asia Pacific (Seoul), Canada (Central), Europe (Paris), South America (São Paulo). For a complete list of the Refactor Spaces Regions and endpoints, see [Refactor Spaces endpoints and quotas](https://docs.aws.amazon.com/general/latest/gr/migrationhub-refactor-spaces.html). | April 20, 2023 | | [New Regions](#doc-history) | AWS Migration Hub Refactor Spaces now supports the following additional Regions: US West (N. California), Asia Pacific (Mumbai), Asia Pacific (Osaka), Asia Pacific (Seoul), Canada (Central), Europe (Paris), South America (São Paulo). For a complete list of the Refactor Spaces Regions and endpoints, see [Refactor Spaces endpoints and quotas](https://docs.aws.amazon.com/general/latest/gr/migrationhub-refactor-spaces.html). | April 20, 2023 | | [New IAM managed policy](#doc-history) | AWS Migration Hub Refactor Spaces now supports a new `AWSMigrationHubRefactorSpaces-EnvironmentsWithoutBridgesFullAccess` AWS Identity and Access Management (IAM) managed policy. You use this new managed policy when you create environments without a network bridge. For more information, see [Policy updates](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates). | April 3, 2023 | | [Create environments without a network bridge](#doc-history) | AWS Migration Hub Refactor Spaces now supports the creation of refactor environments without an AWS Transit Gateway based network bridge. With this flexibility, you can safely and incrementally refactor your application while you use your existing network infrastructure. For more information, see [ Tutorials on using your own network infrastructure with Refactor Spaces](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/tutorials-using-own-network-infrastucture.html). Also, see [CreateEnvironment](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_CreateEnvironment.html) and [CreateRoute](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_CreateRoute.html) in the *AWS Migration Hub Refactor Spaces API Reference*. | March 6, 2023 | | [Lambda function alias support](#doc-history) | Refactor Spaces now supports the use of AWS Lambda function aliases as Refactor Spaces service endpoints. You can now use Lambda function aliases with Refactor Spaces to route traffic to specific versions of a Lambda function. For more information, see [Create a service](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/getting-started-create-service.html). Also, see [CreateService](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_CreateService.html) and [LambdaEndpointInput](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_LambdaEndpointInput.html) in the *AWS Migration Hub Refactor Spaces API Reference*. | December 15, 2022 | | [Automatic DNS resolution](#doc-history) | Refactor Spaces now supports automatic handling of IP address changes for Refactor Spaces services. With this feature, you can create services with Domain Name System (DNS) names in the URL. Refactor Spaces automatically re-resolves the DNS name when the DNS time-to-live (TTL) expires (or every 60 seconds for TTLs less than 60 seconds). For more information, see [Refactor Spaces concepts](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/welcome-concepts.html) and [CreateRoute](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_CreateRoute.html) in the *AWS Migration Hub Refactor Spaces API Reference*. | November 16, 2022 | | [IAM policy update](#doc-history) | Update to the AWS Identity and Access Management (IAM) `MigrationHubRefactorSpacesServiceRolePolicy` policy. For more information, see [Policy updates](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates). | October 28, 2022 | | [IAM policy update](#doc-history) | Update to the IAM `AWSMigrationHubRefactorSpacesFullAccess` managed policy. For more information, see [Policy updates](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates). | October 6, 2022 | | [AWS PrivateLink support](#doc-history) | You can now use AWS PrivateLink to securely access the Refactor Spaces API from your Amazon Virtual Private Cloud without using public IPs, and without requiring the traffic to traverse across the public internet. For more information, see [Access Refactor Spaces using an interface endpoint (AWS PrivateLink)](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/vpc-interface-endpoints.html). For information about the Refactor Spaces API, see the [AWS Migration Hub Refactor Spaces API Reference](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/Welcome.html). | July 19, 2022 | | [Update Routes](#doc-history) | You can now provision routes ahead of use by providing the option to activate and inactivate the route state. This allows you to fine-tune your routing approach based on the timing of incrementally refactoring your applications. For more information, see [ How Refactor Spaces works](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/how-it-works.html) in this user guide, and [CreateRoute](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_CreateRoute.html) and [UpdateRoute](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/APIReference/API_UpdateRoute.html) in the *AWS Migration Hub Refactor Spaces API Reference*. | June 22, 2022 | | [IAM policy update](#doc-history) | Update to the IAM `AWSMigrationHubRefactorSpacesFullAccess` managed policy. For more information, see [Policy updates](https://docs.aws.amazon.com/migrationhub-refactor-spaces/latest/userguide/security-iam-awsmanpol.html#security-iam-awsmanpol-updates). | March 21, 2022 | | [GA release](#doc-history) | General availability release of Refactor Spaces. | February 9, 2022 | | [Initial release](#doc-history) | Initial preview release of the Refactor Spaces User Guide. | November 29, 2021 |