# Document history
<a name="doc-history"></a>

The following table describes the documentation for this release of AWS Billing Conductor.

| Change | Description | Date | 
| --- |--- |--- |
| [Added Amazon EventBridge and AWS User Notifications support](#doc-history) | You can now use Amazon EventBridge to receive AWS Billing Conductor events, and use AWS User Notifications to receive notifications. See [Using Amazon EventBridge with AWS Billing Conductor](https://docs.aws.amazon.com/billingconductor/latest/userguide/using-eventbridge.html) and [Using AWS User Notifications with AWS Billing Conductor](https://docs.aws.amazon.com/billingconductor/latest/userguide/using-user-notifications.html). | March 26, 2026 | 
| [Updated documentation for AWS managed policies](#doc-history) | Updated the `AWSBillingConductorFullAccess` policy. See [AWS managed policies for AWS Billing Conductor](https://docs.aws.amazon.com/billingconductor/latest/userguide/security-iam-awsmanpol.html). | November 19, 2025 | 
| [Updated documentation for AWS managed policies](#doc-history) | Updated the `AWSBillingConductorFullAccess` and `AWSBillingConductorReadOnlyAccess` policies. See [AWS managed policies for AWS Billing Conductor](https://docs.aws.amazon.com/billingconductor/latest/userguide/security-iam-awsmanpol.html). | September 9, 2025 | 
| [Updated documentation](#doc-history) | Reservation and Savings Plans are integrated with Billing Conductor. See [Analyzing Savings Plans, reservation coverage, and utilization reports](https://docs.aws.amazon.com/billingconductor/latest/userguide/analyzing-abc-sp.html) topic. | October 10, 2024 | 
| [Updated documentation](#doc-history) | Updated the [What is AWS Billing Conductor?](https://docs.aws.amazon.com/billingconductor/latest/userguide/what-is-billingconductor.html) topic. | March 7, 2024 | 
| [Updated documentation for AWS managed policies](#doc-history) | Added `GetBillingGroupCostReport` to the `AWSBillingConductorReadOnlyAccess` policy. See [AWS managed policies for AWS Billing Conductor](https://docs.aws.amazon.com/billingconductor/latest/userguide/security-iam-awsmanpol.html). | February 8, 2024 | 
| [Added documentation for margin summary](#doc-history) | You can view your margin details by AWS service for your billing group. See [Analyzing your margins per billing group](https://docs.aws.amazon.com/billingconductor/latest/userguide/analyzing-abc.html). | December 14, 2023 | 
| [Added documentation about custom line items](#doc-history) | You can apply a custom line item for a specific linked account in your billing group. See [Creating custom line items per billing group](https://docs.aws.amazon.com/billingconductor/latest/userguide/create-cli.html). | December 4, 2023 | 
| [Added documentation about the primary account](#doc-history) | Understand how choosing a primary account can affect your pro forma costs for your billing groups. See [Understanding the importance of the primary account join date](https://docs.aws.amazon.com/billingconductor/latest/userguide/best-practices.html#understand-primary-account-join-date). | October 26, 2023 | 
| [Added support for custom line item filters](#doc-history) | You can now specify line item filters to your custom line items. For more information, see [Creating a percentage charge custom line item](https://docs.aws.amazon.com/billingconductor/latest/userguide/create-cli.html#create-cli-percentage). | September 5, 2023 | 
| [Added documentation about pro forma costs](#doc-history) | See the following topics:  [Performing ad hoc analysis on pro forma costs in AWS Cost Explorer](https://docs.aws.amazon.com/billingconductor/latest/userguide/ad-hoc-cost-explorer-analysis.html)   [AWS services that support pro forma costs](https://docs.aws.amazon.com/billingconductor/latest/userguide/service-integrations-support-proforma.html)   [IAM policy example: Deny access to pro forma costs](https://docs.aws.amazon.com/billingconductor/latest/userguide/security_iam_id-based-policy-examples.html#deny-access-proforma-costs)   | August 22, 2023 | 
| [Added support for automatic account association](#doc-history) | You can now enable a billing group for automatic account association. For more information, see [Creating billing groups, pricing configurations, and custom line items](https://docs.aws.amazon.com/billingconductor/latest/userguide/creating-abc.html). | July 26, 2023 | 
| [Added CSV download support](#doc-history) | You can now download a CSV file for your billing group margin analysis table. For more information, see [Analyzing your margins per billing group](https://docs.aws.amazon.com/billingconductor/latest/userguide/analyzing-abc.html). | June 6, 2023 | 
| [Initial release](#doc-history) | Initial release of AWS Billing Conductor User Guide and API Reference. | March 16, 2022 |