# Document history The following table describes the documentation for this release of the Amazon Cost Management console. | Change | Description | Date | | --- |--- |--- | | [Updated Amazon managed policies](#doc-history) | Updated the following managed policies. [AWSBudgetsActions\$1RolePolicyForResourceAdministrationWithSSM](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-SSM) | April 7, 2026 | | [Launching user attributes for cost allocation](/awsaccountbilling/latest/aboutv2/user-attributes-cost-allocation.html) | User attributes for cost allocation enables you to allocate costs based on user attributes from Amazon IAM Identity Center. Introduced the following managed policy: [AWSUserAttributeCostAllocationPolicy](https://docs.amazonaws.cn/cost-management/latest/userguide/security-iam_gs.html#security-iam-awsmanpol-AWSUserAttributeCostAllocationPolicy). | December 15, 2025 | | [Launching Cost efficiency metric in Cost Optimization Hub](https://docs.amazonaws.cn/cur/latest/userguide/coh-cost-efficiency.html) | Cost efficiency is a metric that measures how effectively a customer is optimizing their Amazon cloud resources. | November 19, 2025 | | [Updated Amazon managed policies](#doc-history) | Updated the following managed policies. [AWSBudgetsActionsWithAWSResourceControlAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-full) [AWSBudgetsReadOnlyAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-read-only) | August 15, 2025 | | [Updated Amazon managed policies](#doc-history) | Updated the following managed policies. [AWSBudgetsActionsWithAWSResourceControlAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-full) [AWSBudgetsReadOnlyAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-read-only) | August 15, 2025 | | [Updated Amazon managed policy](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-read-only) | Updated the AWSBudgetsReadOnlyAccess policy. | June 17, 2024 | | [Updated Amazon managed policy](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#budget-managedIAM-SSM) | Updated the AWSBudgetsActions\$1RolePolicyForResourceAdministrationWithSSM policy. | December 14, 2023 | | [New Amazon Cost Anomaly Detection anomaly monitors limit](https://docs.amazonaws.cn/cost-management/latest/userguide/management-limits.html#limits-ad) | Increased the number of anomaly monitors you can create for other monitor types (linked account, cost category, cost allocation tag). | September 12, 2023 | | [Updated documentation](https://docs.amazonaws.cn/cost-management/latest/userguide/migrate-granularaccess-whatis.html) | Added documentation to migrate your policies to the new IAM fine-grained actions. | August 23, 2023 | | [New Amazon Cost Anomaly Detection configuration by default](https://docs.amazonaws.cn/cost-management/latest/userguide/getting-started-ad.html) | Added automatic configuration of Amazon Cost Anomaly Detection for all new Amazon Cost Explorer users. | March 27, 2023 | | [New Amazon Cost Anomaly Detection percentage-based thresholds](https://docs.amazonaws.cn/cost-management/latest/userguide/getting-started-ad.html) | Added support for percentage-based thresholds in Amazon Cost Anomaly Detection for anomaly alerting. | December 15, 2022 | | [New Amazon Cost Anomaly Detection details in alert notifications](https://docs.amazonaws.cn/cost-management/latest/userguide/getting-started-ad.html) | Added important details such as account name, monitor name, and monitor type in alert emails, the console, and notifications sent through SNS to Slack or Chime. | December 8, 2022 | | [New templates and tutorials in Amazon Budgets](https://docs.amazonaws.cn/cost-management/latest/userguide/budgets-create.html) | Added a new feature to create a budget using a template with recommended configurations as well as walk-through tutorials to learn about creating different kinds of budgets. | September 27, 2022 | | [New Amazon Cost Anomaly Detection history values](https://docs.amazonaws.cn/cost-management/latest/userguide/getting-started-ad.html) | Added information about new values in the Amazon Cost Anomaly Detection history tab into the Amazon Cost Management guide to align with the console. | August 16, 2022 | | [New split-view panel in Amazon Budgets](https://docs.amazonaws.cn/cost-management/latest/userguide/budgets-view.html) | Added a new feature to enhance the console experience by adding a split-view panel that allows you to view budget details without leaving the Budgets Overview page. | June 15, 2022 | | [New Amazon Cost Management guide](https://docs.amazonaws.cn/cost-management/latest/userguide/what-is-costmanagement.html) | Split the Billing and Cost Management user guide and aligned the feature details into the Billing guide and Amazon Cost Management guide to align with the console. | October 20, 2021 | | [New Amazon Cost Anomaly Detection](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-ad.html) | Added a new Amazon Cost Anomaly Detection feature that uses machine learning to continuously monitor your cost and usage to detect unusual spends. | December 16, 2020 | | [Updated Amazon managed policies](#doc-history) | Cost Optimization Hub updated the following two managed policies: [CostOptimizationHubReadOnlyAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#cost-optimization-hub-read-only) [CostOptimizationHubAdminAccess](https://docs.amazonaws.cn/cost-management/latest/userguide/billing-permissions-ref.html#cost-optimization-hub-admin) | November 19, 2020 | | [Launched RI/SP Sharing in Amazon Pricing Calculator](https://docs.amazonaws.cn/cost-management/latest/userguide/pc-bill-estimate.html) | You can specify a group sharing preference in Bill Estimates for designating reserved instance and savings plans sharing settings. | November 19, 2020 | | [New Purchase Order Management](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-purchaseorders.html) | Added a new purchase order feature to configure how your purchases are reflected on your invoices. | October 15, 2020 | | [New Budget Actions](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-controls.html) | Added a new Amazon Budgets actions feature to run an action on your behalf when a budget exceeds a certain cost or usage threshold. | October 15, 2020 | | [New China bank redirect payment method](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-cny-payment.html) | Added a new payment method that allows China CNY customers using Amazon to pay their overdue payments using China Bank Redirect. | February 20, 2020 | | [New security chapter](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/security.html) | Added a new security chapter that provides information about various security controls. Former "Controlling Access" chapter contents have been migrated here. | February 6, 2020 | | [New reporting method using Amazon Budgets](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-sns-policy.html) | Added a new reporting functionality using Amazon Budgets reports. | June 27, 2019 | | [Added normalized units to Amazon Cost Explorer](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-default-reports.html) | Amazon Cost Explorer reports now include normalized units. | February 5, 2019 | | [New payment behavior](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/edit-aispl-payment-method.html#aispl-enable-recurring) | Amazon India customers can now enable the auto-charge ability for their payments. | December 20, 2018 | | [Updated the Amazon Cost Explorer UI](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-exploring-data.html) | Updated the Amazon Cost Explorer UI. | November 15, 2018 | | [Added budget history](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-view.html) | Added the ability to see the history of a budget. | November 13, 2018 | | [Expanded budget services](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-managing-costs.html) | Expanded RI budgets to Amazon OpenSearch Service. | November 8, 2018 | | [Added a new payment method](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-debit-emea.html) | Added the SEPA Direct Debit payment method. | October 25, 2018 | | [Redesigned budget experience](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-create.html) | Updated the budget UI and workflow. | October 23, 2018 | | [New Reserved Instance recommendation columns](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-recommendations.html#saving-rex) | Added new columns to the Amazon Cost Explorer RI recommendations. | October 18, 2018 | | [Added a new Reserved Instance report](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-default-reports.html) | Expanded RI reports to Amazon OpenSearch Service. | October 10, 2018 | | [Amazon Cost Explorer walkthrough](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-getting-started.html) | Amazon Cost Explorer now provides a walkthrough for the most common functionality. | September 24, 2018 | | [Added a new payment method](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-debit.html) | Added the ACH Direct Debit payment method. | July 24, 2018 | | [Added RI purchase recommendations for additional services](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-recommendations.html) | Added RI purchase recommendations for additional services in Amazon Cost Explorer. | July 11, 2018 | | [Added RI purchase recommendations for linked accounts](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-recommendations.html) | Added RI purchase recommendations for linked accounts in Amazon Cost Explorer. | June 27, 2018 | | [Added Amazon CloudFormation for budgets](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/aws-resource-budgets-budget.html) | Added Budgets templates for Amazon CloudFormation. | May 22, 2018 | | [Updated RI allocation behavior for linked accounts](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/con-bill-blended-rates.html#Instance_Reservations) | Updated the RI allocation behavior size-flexible RI for linked accounts. | May 9, 2018 | | [RI coverage alerts](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-create.html) | Added RI coverage alerts. | May 8, 2018 | | [Unblend linked account bills](#doc-history) | Linked account bills no longer show the blended rate for the organization. | May 7, 2018 | | [Added Amazon RDS recommendations to Amazon Cost Explorer](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-recommendations.html) | Added Amazon RDS Recommendations to Amazon Cost Explorer. | April 19, 2018 | | [Added a new Amazon Cost Explorer dimension and Amazon Cost and Usage Reports line item](#doc-history) | Added a new Amazon Cost Explorer dimension and Amazon Cost and Usage Reports line item. | March 27, 2018 | | [Added purchase recommendations to the Amazon Cost Explorer API](https://docs.amazonaws.cn/aws-cost-management/latest/APIReference/API_GetReservationPurchaseRecommendation.html) | Added access to the Amazon EC2 Reserved Instance (RI) purchase recommendations via the Amazon Cost Explorer API. | March 20, 2018 | | [Added RI coverage for Amazon RDS, Amazon Redshift, and ElastiCache](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-new-report.html#ce-coverage-views) | Reserved Instance (RI) coverage for Amazon RDS, Amazon Redshift, and ElastiCache . | March 13, 2018 | | [Added RI coverage to the Amazon Cost Explorer API](https://docs.amazonaws.cn/aws-cost-management/latest/APIReference/API_GetReservationCoverage.html) | Added `GetReservationCoverage` to the Amazon Cost Explorer API. | February 22, 2018 | | [RI recommendations](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-recommendations.html) | Added RI recommendations based on previous usage. | November 20, 2017 | | [Amazon Cost Explorer API](https://docs.amazonaws.cn/aws-cost-management/latest/APIReference/Welcome.html) | Enabled programmatic access to Amazon Cost Explorer via API. | November 20, 2017 | | [RI utilization alerts for additional services](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-create.html) | Added notifications for additional services. | November 10, 2017 | | [Added RI reports](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-new-report.html) | Expanded RI reports to Amazon RDS, Redshift, and ElastiCache. | November 10, 2017 | | [Discount sharing preferences](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ri-turn-off.html) | Updated preferences so that Amazon credits and RI discount sharing can be turned off. | November 6, 2017 | | [RI utilization alerts](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-managing-costs.html) | Added notifications for when RI utilization drops below a preset percentage-based threshold. | August 21, 2017 | | [Updated Amazon Cost Explorer UI](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-what-is.html) | Released a new Amazon Cost Explorer UI. | August 16, 2017 | | [Amazon Web Services Marketplace data integration](#doc-history) | Added Amazon Web Services Marketplace so that customers can see their data reflected in all billing artifacts, including the Bills page, Amazon Cost Explorer, and more. | August 10, 2017 | | [Linked account access and usage type groups in budgets](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-create.html) | Added support for creating cost and usage budgets based on specific usage types and usage type groups, and extended budget creation capabilities to all account types. | June 19, 2017 | | [Added Amazon Cost Explorer advanced options](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/advanced.html) | You can now filter Amazon Cost Explorer reports by additional advanced options, such as refunds, credits, RI upfront fees, RI recurring charges, and support charges. | March 22, 2017 | | [Added a Amazon Cost Explorer report](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-new-report.html#ce-coverage-views) | You can now track your Reserved Instance (RI) coverage in Amazon Cost Explorer. | March 20, 2017 | | [Added Amazon Cost Explorer filters](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/selectdim.html#filtergrouptypes) | You can now filter Amazon Cost Explorer reports by tenancy, platform, and the Amazon EC2 Spot and Scheduled Reserved Instance purchase options. | March 20, 2017 | | [Amazon Cost Explorer and budgets for Amazon India](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/monitoring-costs.html) | Amazon India users can now use Amazon Cost Explorer and budgets. | March 6, 2017 | | [Added grouping for Amazon Cost Explorer usage types](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/groupdata.html) | Amazon Cost Explorer supports grouping for both cost and usage data, enabling customers to identify their cost drivers by cross-referencing their cost and usage charts. | February 24, 2017 | | [Added a Amazon Cost Explorer report](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-new-report.html#ce-utilization-views) | You can now track your monthly Amazon EC2 Reserved Instance (RI) utilization in Amazon Cost Explorer. | December 16, 2016 | | [Added a Amazon Cost Explorer report](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-new-report.html#ce-utilization-views) | You can now track your daily Amazon EC2 Reserved Instance (RI) utilization in Amazon Cost Explorer. | December 15, 2016 | | [Added Amazon Cost Explorer advanced options](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/advanced.html#show-untagged-resources) | You can now exclude tagged resources from your Amazon Cost Explorer reports. | November 18, 2016 | | [Expanded budget functionality](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/budgets-managing-costs.html) | You can now use budgets to track usage data. | October 20, 2016 | | [Expanded Amazon Cost Explorer functionality](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-what-is.html) | You can now use Amazon Cost Explorer to visualize your costs by usage type groups. | September 15, 2016 | | [Amazon Cost Explorer report manager](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/cost-explorer-saved-reports.html) | You can now save Amazon Cost Explorer queries. | November 12, 2015 | | [Budgets and forecasting](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/monitoring-costs.html) | You can now manage your Amazon usage and costs using budgets and cost forecasts. | June 29, 2015 | | [Amazon Web Services India Private Limited](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/manage-account-payment-aispl.html) | You can now manage your account settings and payment methods for an Amazon Web Services India Private Limited (Amazon India) account. | June 1, 2015 | | [Expanded Amazon Cost Explorer functionality](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-what-is.html) | You can now use Amazon Cost Explorer to visualize your costs by Availability Zone, API operation, purchase option, or multiple cost allocation tags. | February 19, 2015 | | [Preferred payment currencies](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/billing-what-is.html#billingfeatures) | You can now change the currency associated with your credit card. | February 16, 2015 | | [Expanded Amazon Cost Explorer functionality](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-what-is.html) | You can now use Amazon Cost Explorer to visualize your costs by Amazon EC2 instance type or region. | January 5, 2015 | | [User permissions](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/control-access-billing.html) | You can now enable federated users or roles to access and manage your account settings, view your bills, and perform cost management. For example, you can grant people in your finance department full access to the financial setup and control of your Amazon account, without having to give them access to your production Amazon environment. | July 7, 2014 | | [Amazon Cost Explorer launched](https://docs.amazonaws.cn/awsaccountbilling/latest/aboutv2/ce-what-is.html) | Amazon Cost Explorer provides a visualization of your Amazon costs that enables you to analyze your costs in multiple ways. | April 8, 2014 | | [Version 2.0 published for the Billing guide](#doc-history) | The *Amazon Billing User Guide* has been reorganized and rewritten to use the new Billing and Cost Management console. | October 25, 2013 |