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Release notes - AWS Well-Architected

AWS Well-Architected Agent is in preview release and is subject to change.

Release notes

This page describes changes to the AWS Well-Architected user guide. For notification about updates to this documentation, you can subscribe to the RSS feed.

AWS Well-Architected Agent released (10-1-2026)

AWS Well-Architected Agent (preview)

AWS Well-Architected Agent is an AI-powered cloud optimization service that continuously analyzes your AWS environment and delivers personalized, prioritized recommendations across cost, security, performance, and resilience. The agent generates recommendations at three levels (resource, application, and architecture) with ready-to-deploy SSM runbooks so you can act immediately.

Key capabilities added with this release:

  • Automated, ongoing analysis: Unlike point-in-time architecture reviews, AWS WA Agent analyzes your environment on a weekly cadence and refreshes recommendations automatically.

  • Ready-to-deploy remediation: Recommendations include AI-generated SSM runbooks, not only findings.

  • Goal-aligned prioritization: Recommendations are ranked against the business goals you define in your agent profile.

  • Cross-pillar impact and trade-off analysis: Every recommendation shows positive impacts on other pillars, as well as trade-offs with risk level and mitigation strategies.

  • IaC architecture reviews: On-demand architecture reviews of CloudFormation and Terraform templates, returning findings aligned to AWS Well-Architected best practices.

  • Multi-account scale: A single agent profile can analyze multiple AWS accounts and scan resources across multiple AWS Regions.

AWS WA Agent is available to customers with a Business+, Enterprise On-Ramp, Enterprise Support, or Unified Operations support plan. Agent profiles are hosted in US East (N. Virginia), US East (Ohio), or US West (Oregon), and scan resources across all commercial AWS Regions.

For more information, see What is AWS Well-Architected Agent (preview)?.

Historic AWS Well-Architected releases

The following table describes earlier updates to this guide.

Change Description Date

Added Well-Architected Framework Review (WAFR) section

Added a new section with guidance on performing a WAFR using the AWS Well-Architected Tool.

October 13, 2025

New lens

This release added one new lens to the Lens Catalog.

April 17, 2025

New and updated lenses

This release added one new lens to the Lens Catalog and updated one other lens.

June 27, 2024

Jira

This release added the AWS Well-Architected Tool Connector for Jira.

April 16, 2024

New lenses

This release added new lenses to the Lens Catalog.

March 26, 2024

Updated functionality

This release adds the Lens Catalog feature to AWS WA Tool.

November 26, 2023

Updated functionality

This release adds the Review Templates feature to AWS WA Tool.

October 3, 2023

Updated functionality

This release adds the Profiles feature to AWS WA Tool.

June 13, 2023

Updated functionality

This release enhances the AWS Trusted Advisor and AWS Service Catalog AppRegistry integration, and adds the AWSWellArchitectedDiscoveryServiceRolePolicy to AWS managed policies.

May 3, 2023

Content update

Corrected name of WellArchitectedConsoleReadOnlyAccess policy.

January 19, 2023

Updated functionality

This release removes the FTR lens from the tool.

December 14, 2022

Updated functionality

This release adds the AWS Trusted Advisor and AWS Service Catalog AppRegistry integration.

November 7, 2022

Content update

Corrected a problem in the custom lens JSON example for choices.

September 29, 2022

Content update

The choices section of the custom lens JSON specification was updated.

August 2, 2022

Updated functionality

This release adds the ability to specify additional resources for choices in a custom lens, to preview a custom lens before publishing it, and add tags to custom lenses.

June 21, 2022

Updated functionality

This release adds the ability to access the AWS Well-Architected community on AWS re:Post.

May 31, 2022

Updated functionality

This release adds the sustainability pillar and minor updates to Tutorial.

March 31, 2022

Updated functionality

Individual best practices can now be marked as not applicable.

July 14, 2021

Updated functionality

This release adds the FTR and SaaS lenses to the tool.

December 3, 2020

Content update

Clarified that after you upgrade a workload to use a new lens that you cannot go back to the previous version.

July 8, 2020

Content update

Clarified sharing in AWS Regions introduced after March 20, 2019.

June 24, 2020

Updated functionality

Access to a workload share is removed immediately when a workload share invitation is rejected. Shared access is granted when the share is accepted.

June 17, 2020

Updated functionality

This release adds a review owner to the workload.

April 1, 2020

Updated functionality

This release adds an architectural diagram link to the workload.

March 10, 2020

Content update

Clarified that workload shares are AWS Region-specific.

January 10, 2020

Updated functionality

This release adds workload sharing.

January 9, 2020

Content update

Security section updated with latest guidance.

December 6, 2019

Updated functionality

This release makes the industry fields optional when defining a workload.

August 19, 2019

Updated functionality

This release adds improvement plan items to the workload report.

July 29, 2019

Updated functionality

The release adds the DeleteWorkload action to the policy.

July 18, 2019

Content update

The content in this guide has been updated with minor fixes.

June 19, 2019

Content update

The content in this guide has been updated with minor fixes.

May 30, 2019

Updated functionality

This release supports upgrading the version of the framework used for a workload review.

May 1, 2019

Updated functionality

This release adds the ability to specify non-AWS Regions when defining a workload.

February 14, 2019

AWS Well-Architected Tool general availability

This release introduces the AWS Well-Architected Tool.

November 29, 2018