# Document history for AWS Compute Optimizer The following table describes the documentation for this release of AWS Compute Optimizer. + **API version:** 2019-11-30 + **Latest documentation update:** August 15, 2022 The following table describes the documentation for this release of Compute Optimizer. | Change | Description | Date | | --- |--- |--- | | [Compute Optimizer supports new EC2 and RDS instance types](#doc-history) | Compute Optimizer now provides recommendations for new Amazon EC2 instance types, including C8a, C8gb, C8i, C8i-flex, C8id, M8a, M8azn, M8gb, M8gn, M8id, R8a, R8gb, R8gn, R8id, x8i, and i7i instances. Compute Optimizer also added support for new RDS DB instance classes, including db.m7i, db.m8g, db.r8g, db.x1, and db.z1d. For more information, see [Supported resources](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html). | April 20, 2026 | | [Added FAQ page for supported protocols](#doc-history) | Added a new FAQ page with answers to common questions about the AWS JSON and Smithy RPC v2 CBOR wire protocols. For more information, see [ FAQs on supported protocols](https://docs.aws.amazon.com/compute-optimizer/latest/ug/cbor-faq.html). | April 16, 2026 | | [Updated documentation for managed policies](#doc-history) | Added new `ComputeOptimizerAutomationServiceRolePolicy` policy. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | November 19, 2025 | | [Compute Optimizer supports new EC2 instance types](#doc-history) | Compute Optimizer now provides recommendations for 99 new Amazon EC2 instance types, including the C8gn, I8ge, M8i, and R8i instances. For more information, see [Supported Amazon EC2 instance types](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html#supported-ec2-instances). | September 26, 2025 | | [Expanded the features of EC2 Auto Scaling group recommendations](#doc-history) | Compute Optimizer now generates rightsizing recommendations for EC2 Auto Scaling groups that use G or P instance types, and idle recommendations for groups with scaling policies and groups that have been scaled down to a single instance. For more information, see [Supported Amazon EC2 Auto Scaling groups ](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html#supported-asg). | June 16, 2025 | | [Amazon Aurora I/O-Optimized recommendations](#doc-history) | Compute Optimizer now provides Aurora I/O-Optimized recommendations for Amazon Aurora DB cluster storage. For more information, see [Viewing Aurora and RDS database recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-rds-recommendations). | June 2, 2025 | | [Compute Optimizer supports new EC2 instance types](#doc-history) | Compute Optimizer now provides recommendations for 57 new Amazon EC2 instance types, including the I7ie, I8g, High Memory (U-1), P5e, and G6e instances. For more information, see [Supported Amazon EC2 instance types](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html#supported-ec2-instances). | April 10, 2025 | | [Updated an AWS managed policy for AWS Compute Optimizer](#doc-history) | The `ComputeOptimizerServiceRolePolicy` AWS managed policy for AWS Compute Optimizer was updated. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | January 9, 2025 | | [Expanded the features of EC2 Auto Scaling group recommendations](#doc-history) | Compute Optimizer now generates recommendations for EC2 Auto Scaling groups that have mixed instance types, scaling policies, or both. For more information, see [Viewing EC2 Auto Scaling group recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-asg-recommendations). | January 9, 2025 | | [Updated AWS managed policies for AWS Compute Optimizer](#doc-history) | The `ComputeOptimizerReadOnlyAccess` AWS managed policy for AWS Compute Optimizer was updated. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | November 20, 2024 | | [Compute Optimizer generates recommendations for idle resources](#doc-history) | Compute Optimizer helps you identify idle resources that can be deleted or stopped to reduce your AWS cloud costs. For more information, see [ Viewing idle resource recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-idle-recommendations). | November 20, 2024 | | [Amazon RDS DB recommendations](#doc-history) | Compute Optimizer now generates Amazon RDS rightsizing recommendations for Aurora MySQL and Aurora PostgreSQL database engines. For more information, see [Viewing RDS DB instance recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-rds-recommendations). | November 20, 2024 | | [Compute Optimizer supports new EC2 instance types](#doc-history) | Compute Optimizer now provides recommendations for 80 new Amazon EC2 instance types, including the P4, P5, G5, G6, C7i-flex, C8g, R8g, and X8g instances. For more information, see [Supported Amazon EC2 instance types](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html#supported-ec2-instances). | October 1, 2024 | | [Updated AWS managed policies for AWS Compute Optimizer](#doc-history) | The `ComputeOptimizerReadOnlyAccess` AWS managed policy for AWS Compute Optimizer was updated. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | June 20, 2024 | | [Amazon RDS DB recommendations](#doc-history) | Compute Optimizer now generates Amazon RDS rightsizing recommendations for Amazon RDS MySQL and Amazon RDS PostgreSQL database engines. For more information, see [Viewing RDS DB instance recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-rds-recommendations). | June 20, 2024 | | [Compute Optimizer supports rightsizing preferences for memory ultilization headroom](#doc-history) | In Compute Optimizer you can use rightsizing recommendation preferences to customize the memory ultilization headroom settings you want Compute Optimizer to use when generating your Amazon EC2 instance recommendations. For more information, see [Rightsizing recommendation preferences](https://docs.aws.amazon.com/compute-optimizer/latest/ug/rightsizing-preferences). | March 28, 2024 | | [Compute Optimizer supports new EC2 instance types](#doc-history) | Compute Optimizer now provides recommendations for 51 new EC2 instance types, including the C7i, r7i, r8g, x2idn, x2iedn, and hpc7a instances. For more information, see [Supported Amazon EC2 instance types](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html#supported-ec2-instances). | March 25, 2024 | | [Compute Optimizer supports rigthsizing recommendation preferences](#doc-history) | In Compute Optimizer you can use rightsizing recommendation preferences to customize the settings you want Compute Optimizer to consider when generating your Amazon EC2 and Auto Scaling group instance recommendations. For more information, see [Rightsizing recommendation preferences](https://docs.aws.amazon.com/compute-optimizer/latest/ug/rightsizing-preferences). | November 26, 2023 | | [Compute Optimizer supports new specific discounts for rigthsizing recommendations](#doc-history) | You can now allow Compute Optimizer to analyze specific pricing discounts, such Saving Plans and Reserved Instances, when generating the estimated cost savings of rightsizing recommendations. For more information, see [Savings estimation mode](https://docs.aws.amazon.com/compute-optimizer/latest/ug/savings-estimation-mode). | November 26, 2023 | | [Compute Optimizer supports new EC2 instance types and EBS volumes](#doc-history) | Compute Optimizer now provides recommendations for 153 new Amazon EC2 instance types, including the M7a, M7i, M7i-flex, M6a, C7gn, R6a, R7g, X2iezn, I4g, I4i, Hpc7g, and Hpc6id instances. Additionally, Compute Optimizer now supports Provisioned IOPS Amazon EBS volumes that are attached to multiple EC2 instances. For more information, see [AWS resources supported by Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/supported-resources.html). | September 28, 2023 | | [Compute Optimizer supports GPU-based EC2 instances](#doc-history) | Compute Optimizer now provides rightsizing recommendations for G4dn and P3 instances. For more information, see [ Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances). | September 5, 2023 | | [Compute Optimizer generates commercial software license recommendations](#doc-history) | Compute Optimizer now generates license recommendations for commercial software that run on Amazon EC2. Compute Optimizer only provides Microsoft SQL Server license recommendations. For more information, see [ Viewing commercial software license recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-license-recommendations). | August 28, 2023 | | [Compute Optimizer supports tag filtering and inferred workload type filtering for recommendations](#doc-history) | In Compute Optimizer you can now filter your EC2 instance, EBS volume, Lambda function, and ECS service recommendations by tag key and tag value. Additionally, you can also filter your EC2 recommendations by inferred workload types. For more information, see [ Viewing EC2 instances recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ec2-recommendations.html#ec2-view-recommendations). | May 1, 2023 | | [Compute Optimizer supports new EC2 instance types](#doc-history) | Compute Optimizer now provides recommendations for 61 new EC2 instance types, including the C6in, R6in, R6idn, M6in, and M6idn instances. For more information, see [ Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances). | March 30, 2023 | | [Compute Optimizer supports new EBS volume types](#doc-history) | Compute Optimizer now provides recommendations for three new EBS volume types: HDD `st1` and `sc1`, and Provisioned IOPS SSD `io2 Block Express`. For more information, see [ Amazon EBS volume requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements). | March 30, 2023 | | [Compute Optimizer supports EC2 suspension workloads](#doc-history) | Compute Optimizer can now combine utilization data from intermittent workloads to generate EC2 recommendations. For more information, see [ Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances). | March 30, 2023 | | [Compute Optimizer generates recommendations for Amazon ECS services on Fargate](#doc-history) | Compute Optimizer now generates recommendations for Amazon ECS services on Fargate. For more information, see [ Recommendations for Amazon ECS services on Fargate](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ecs-recommendations). | December 22, 2022 | | [Compute Optimizer launches external metrics ingestion feature](#doc-history) | Compute Optimizer can now ingest and analyze external EC2 memory utilization metrics from one of the four observability products to generate EC2 rightsizing recommendations that provide you with additional savings and enhanced performance. For more information, see [ External metrics ingestion](https://docs.aws.amazon.com/compute-optimizer/latest/ug/external-metrics-ingestion). | November 28, 2022 | | [Compute Optimizer supports new EC2 instance types and Windows memory metrics](#doc-history) | Compute Optimizer now provides recommendations for 37 new EC2 instance types, including the M6i.metal, C6i.metal, C7g, and Hpc6a instances. Additionally, Compute Optimizer now prioritizes the `Available MBytes` memory metric when generating recommendations for EC2 Windows instances. For more information, see [Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances) and [ EC2 instance metrics](https://docs.aws.amazon.com/compute-optimizer/latest/ug/metrics.html#ec2-metrics-analyzed). | October 7, 2022 | | [Compute Optimizer launches delegated administrator feature](#doc-history) | Now in Compute Optimizer, an organization's management accounts can delegate a member account as an administrator for their organization. The delegated administrator can access and manage Compute Optimizer recommendations. The delegated administrator can also set recommendation preferences for your entire organization without the need to access the management account. For more information, see [Delegate an administrator account](https://docs.aws.amazon.com/compute-optimizer/latest/ug/delegate-administrator-account.html). | August 15, 2022 | | [Updated an AWS managed policy for AWS Compute Optimizer](#doc-history) | The `ComputeOptimizerServiceRolePolicy` AWS managed policy for AWS Compute Optimizer was updated. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | July 25, 2022 | | [Compute Optimizer adds support for additional Amazon EC2 instance types](#doc-history) | Compute Optimizer now supports C5d, C6a, C6i, I2, Im4gn, Is4gen, M5ad, M6a, M6i, and R6i Amazon EC2 instance types. These instance types are supported in all the AWS Regions where both these instance types and Compute Optimizer are available. This update doesn't apply in the China (Beijing) and China (Ningxia) Regions. For more information, see [Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances). | April 7, 2022 | | [Workload-aware recommendations and migration effort now available](#doc-history) | With the new inferred workload types feature, Compute Optimizer can infer the applications that might be running on your resources. Examples include EC2 instances and Auto Scaling groups. Compute Optimizer does this by analyzing the attributes of your resources, such as resource names, tags, and configuration. By inferring applications, Compute Optimizer can generate recommendations that take your applications into account. It can also identify the level of effort required to migrate from the current instance type to the recommended instance type. For more information, see [Inferred workload type](https://docs.aws.amazon.com/compute-optimizer/latest/ug/inferred-workload-type.html). | January 10, 2022 | | [View savings and performance improvement opportunities for your resources, and activate enhanced infrastructure metrics](#doc-history) | Identify your biggest cost and performance improvement opportunities in the new **Savings opportunity** and **Performance improvement opportunity** sections of the dashboard. For more information, see [Viewing the AWS Compute Optimizer dashboard](https://docs.aws.amazon.com/compute-optimizer/latest/ug/viewing-dashboard.html). You can also now extend the metrics analysis lookback period for EC2 instances and Auto Scaling groups up to three months. By default, the lookback period is 14 days. To do this, activate enhanced infrastructure metrics. The enhanced infrastructure metrics feature is a paid feature of Compute Optimizer. For more information, see [Activating enhanced infrastructure metrics](https://docs.aws.amazon.com/compute-optimizer/latest/ug/enhanced-infrastructure-metrics.html). | November 29, 2021 | | [Updated AWS managed policies for AWS Compute Optimizer](#doc-history) | The `ComputeOptimizerServiceRolePolicy` and `ComputeOptimizerReadOnlyAccess` AWS managed policies for AWS Compute Optimizer were updated. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | November 29, 2021 | | [AWS Graviton based instance recommendations](#doc-history) | Compute Optimizer now provides the price and performance impact for running your workload on AWS Graviton based instances. For more information, see [AWS Graviton-based instance recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ec2-recommendations.html#ec2-graviton-recommendations). If your account is your organization's management account, you can now also view the member accounts of an organization that are opted in to Compute Optimizer. For more information, see [Viewing the accounts opted in to AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/viewing-accounts.html). | August 26, 2021 | | [Amazon EC2 instance recommendations enhancements](#doc-history) | Compute Optimizer now supports a wider range of Amazon EC2 instance types. Compute Optimizer evaluates a wider range of instance metrics to generate recommendations and provides finding instance recommendations reasons. Compute Optimizer also describes the platform differences between the current instance and the recommended instance type. For more information, see [Amazon EC2 instance requirements](https://docs.aws.amazon.com/compute-optimizer/latest/ug/requirements.html#requirements-ec2-instances), [EC2 instance metrics](https://docs.aws.amazon.com/compute-optimizer/latest/ug/metrics.html#ec2-metrics-analyzed), [Finding reasons](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ec2-recommendations.html#ec2-finding-reasons), and [Platform differences](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ec2-recommendations.html#ec2-platform-differences). | May 24, 2021 | | [Recommendations export for Amazon EBS volumes and Lambda functions](#doc-history) | You can now export recommendations for Amazon EBS volumes and Lambda functions to Amazon S3. For more information, see [Exporting recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/exporting-recommendations.html). | May 18, 2021 | | [Adding documentation for AWS managed policies](#doc-history) | Compute Optimizer now tracks changes for its AWS managed policies. For more information, see [AWS managed policies for AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/managed-policies.html). | May 18, 2021 | | [AWS Lambda function recommendations](#doc-history) | Compute Optimizer now generates recommendations for AWS Lambda functions. For more information, see [Viewing AWS Lambda function recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-lambda-recommendations.html). | December 23, 2020 | | [Amazon EBS volume recommendations](#doc-history) | Compute Optimizer now generates recommendations for Amazon Elastic Block Store (Amazon EBS) volumes. For more information, see [Viewing EBS volume recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ebs-recommendations.html). | December 3, 2020 | | [Amazon EBS metrics and encrypted S3 buckets](#doc-history) | Compute Optimizer now analyzes the read/write operations per second (ops), and the read/write bytes per second (Bps) of the Amazon Elastic Block Store (Amazon EBS) volumes that are attached to an instance. The data is used to generate recommendations. You can also view EBS read/write bandwidth (operations per second), and EBS read/write throughput (KiBps) graphs in the Compute Optimizer console. For more information, see [Viewing EC2 instance recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-ec2-recommendations.html). You can also now export recommendations to encrypted Amazon S3 buckets. For more information, see [Exporting recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/exporting-recommendations.html). | October 7, 2020 | | [Recommendations export](#doc-history) | Recommendations can be exported to Amazon Simple Storage Service (Amazon S3). For more information, see [Exporting recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/exporting-recommendations.html). | June 10, 2020 | | [Self-service opt-out](#doc-history) | AWS Command Line Interface now supports self-service opt-out. For more information, see [Opting out your account](https://docs.aws.amazon.com/compute-optimizer/latest/ug/getting-started.html#account-opt-out). | April 6, 2020 | | [Service release](#doc-history) | Compute Optimizer released. | December 2, 2019 |