Auto Scaling

2024/11/20 - 5 updated api methods

Changes   With this release, customers can prioritize launching instances into ODCRs using targets from ASGs or Launch Templates. Customers can express their baseline instances' CPU-performance in attribute-based Instance Requirements configuration by referencing an instance family that meets their needs.

2024/11/18 - 4 updated api methods

Changes   Amazon EC2 Auto Scaling now supports Amazon Application Recovery Controller (ARC) zonal shift and zonal autoshift to help you quickly recover an impaired application from failures in an Availability Zone (AZ).

2024/11/07 - 3 updated api methods

Changes   Auto Scaling groups now support the ability to strictly balance instances across Availability Zones by configuring the AvailabilityZoneDistribution parameter. If balanced-only is configured for a group, launches will always be attempted in the under scaled Availability Zone even if it is unhealthy.

2024/10/31 - 2 updated api methods

Changes   Adds bake time for Auto Scaling group Instance Refresh

2024/01/29 - 5 updated api methods

Changes   EC2 Auto Scaling customers who use attribute based instance-type selection can now intuitively define their Spot instances price protection limit as a percentage of the lowest priced On-Demand instance type.

2023/11/15 - 5 updated api methods

Changes   This release introduces Instance Maintenance Policy, a new EC2 Auto Scaling capability that allows customers to define whether instances are launched before or after existing instances are terminated during instance replacement operations.

2023/07/31 - 2 updated api methods

Changes   You can now configure an instance refresh to set its status to 'failed' when it detects that a specified CloudWatch alarm has gone into the ALARM state. You can also choose to roll back the instance refresh automatically when the alarm threshold is met.

2023/03/30 - 10 updated api methods

Changes   Amazon EC2 Auto Scaling now supports Elastic Load Balancing traffic sources with the AttachTrafficSources, DetachTrafficSources, and DescribeTrafficSources APIs. This release also introduces a new activity status, "WaitingForConnectionDraining", for VPC Lattice to the DescribeScalingActivities API.

2023/02/10 - 1 new 2 updated api methods

Changes   You can now either terminate/replace, ignore, or wait for EC2 Auto Scaling instances on standby or protected from scale in. Also, you can also roll back changes from a failed instance refresh.

2022/12/08 - 3 new 4 updated api methods

Changes   Adds support for metric math for target tracking scaling policies, saving you the cost and effort of publishing a custom metric to CloudWatch. Also adds support for VPC Lattice by adding the Attach/Detach/DescribeTrafficSources APIs and a new health check type to the CreateAutoScalingGroup API.

2022/11/07 - 5 updated api methods

Changes   This release adds support for two new attributes for attribute-based instance type selection - NetworkBandwidthGbps and AllowedInstanceTypes.

2022/04/19 - 3 updated api methods

Changes   EC2 Auto Scaling now adds default instance warm-up times for all scaling activities, health check replacements, and other replacement events in the Auto Scaling instance lifecycle.

2022/02/24 - 3 updated api methods

Changes   You can now hibernate instances in a warm pool to stop instances without deleting their RAM contents. You can now also return instances to the warm pool on scale in, instead of always terminating capacity that you will need later.

2021/11/24 - 3 updated api methods

Changes   Customers can now configure predictive scaling policies to proactively scale EC2 Auto Scaling groups based on any CloudWatch metrics that more accurately represent the load on the group than the four predefined metrics. They can also use math expressions to further customize the metrics.

2021/10/27 - 5 updated api methods

Changes   This release adds support for attribute-based instance type selection, a new EC2 Auto Scaling feature that lets customers express their instance requirements as a set of attributes, such as vCPU, memory, and storage.

2021/10/14 - 1 updated api methods

Changes   Amazon EC2 Auto Scaling now supports filtering describe Auto Scaling groups API using tags

2021/08/05 - 2 updated api methods

Changes   EC2 Auto Scaling adds configuration checks and Launch Template validation to Instance Refresh.

2021/06/30 - 3 updated api methods

Changes   Amazon EC2 Auto Scaling infrastructure improvements and optimizations.

2021/06/02 - 2 updated api methods

Changes   You can now launch EC2 instances with GP3 volumes when using Auto Scaling groups with Launch Configurations

2021/05/19 - 1 new 3 updated api methods

Changes   With this release, customers can easily use Predictive Scaling as a policy directly through Amazon EC2 Auto Scaling configurations to proactively scale their applications ahead of predicted demand.

2021/04/08 - 3 new 2 updated api methods

Changes   Amazon EC2 Auto Scaling announces Warm Pools that help applications to scale out faster by pre-initializing EC2 instances and save money by requiring fewer continuously running instances

2021/03/18 - 1 updated api methods

Changes   Amazon EC2 Auto Scaling Instance Refresh now supports phased deployments.

2021/03/09 - 3 updated api methods

Changes   Update autoscaling client to latest version

2021/02/23 - 5 updated api methods

Changes   Update autoscaling client to latest version

2020/11/19 - 3 updated api methods

Changes   Update autoscaling client to latest version

2020/11/04 - 3 updated api methods

Changes   Update autoscaling client to latest version

2020/07/28 - 2 updated api methods

Changes   Update autoscaling client to latest version

2020/06/16 - 3 new api methods

Changes   Update autoscaling client to latest version

2020/02/18 - 2 updated api methods

Changes   Update autoscaling client to latest version

2019/11/19 - 4 updated api methods

Changes   Update autoscaling client to latest version

2019/08/29 - 2 updated api methods

Changes   Update application-autoscaling client to latest version

2018/11/21 - 1 new 3 updated api methods

Changes   Update autoscaling-plans client to latest version

2018/11/14 - 3 updated api methods

Changes   Update autoscaling client to latest version

2018/08/14 - 2 new api methods

Changes   Update autoscaling client to latest version

2018/07/09 - 10 updated api methods

Changes   Update application-autoscaling client to latest version

2018/04/23 - 1 new 2 updated api methods

Changes   Update autoscaling-plans client to latest version

2018/02/28 - 10 updated api methods

Changes   Update application-autoscaling client to latest version

2018/02/20 - 3 updated api methods

Changes   Update autoscaling client to latest version

2018/01/17 - 2 updated api methods

Changes   Update application-autoscaling client to latest version

2018/01/17 - 4 new api methods

Changes   Update autoscaling-plans client to latest version

2018/01/17 - 2 updated api methods

Changes   Update application-autoscaling client to latest version

2018/01/17 - 4 new api methods

Changes   Update autoscaling-plans client to latest version

2017/11/30 - 4 updated api methods

Changes   Update autoscaling client to latest version

2017/11/17 - 2 updated api methods

Changes   Update application-autoscaling client to latest version

2017/11/16 - 10 updated api methods

Changes   Update application-autoscaling client to latest version

2017/11/08 - 3 new api methods

Changes   Update application-autoscaling client to latest version

2017/09/13 - 1 updated api methods

Changes   Update autoscaling client to latest version

2017/08/30 - 2 updated api methods

Changes   Update application-autoscaling client to latest version

2017/07/12 - 2 updated api methods

Changes   Update autoscaling client to latest version

2017/06/14 - 7 updated api methods

Changes   Update application-autoscaling client to latest version

2017/03/23 - 7 updated api methods

Changes   Update application-autoscaling client to latest version

2016/11/18 - 7 updated api methods

Changes   Update application-autoscaling client to latest version

2016/09/01 - 7 updated api methods

Changes   Update application-autoscaling client to latest version

2016/08/11 - 3 new 2 updated api methods

Changes   Update autoscaling client to latest version

2016/05/18 - 7 new api methods

Changes   Adds support for Application Auto Scaling. Application Auto Scaling is a general purpose Auto Scaling service for supported elastic AWS resources. With Application Auto Scaling, you can automatically scale your AWS resources, with an experience similar to that of Auto Scaling.