AWS Releases
Amazon Web Services releases and Terraform AWS provider. New features, breaking changes, security advisories and deprecations - each summarised in plain English and updated continuously.
Tracking 680 AWS releases · Updated
- AWS What's New infraawsengineeraws-ecs ·
ECS adds configurable deployment circuit breaker settings
Amazon ECS now allows customization of deployment circuit breaker settings, enabling users to define failure thresholds and counting models for automatic rollbacks. This feature provides greater control over deployment behavior, accommodating different application needs and error tolerances. It is available in all AWS Regions and configurable via multiple AWS tools.
feature - AWS What's New infraawsengineeraws-ecs ·
Amazon ECS Express Mode now supports custom task definitions
Amazon ECS Express Mode now allows the use of custom task definitions, enabling users to leverage existing configurations and advanced customizations with its simplified deployment experience. This integration allows for the reuse of task definitions across CI/CD pipelines and IaC workflows, maintaining established operational practices. This feature is now available in all AWS Regions and supports integration with observability, security, and logging tools.
feature - AWS What's New aiinfraawsengineeraws-eksaws-ecs ·
AWS Network Firewall Adds Container Attribute Inspection for EKS/ECS
AWS Network Firewall now supports container attribute-based rules for securing containerized workloads on EKS and ECS. This simplifies network security by allowing rules based on native constructs like namespaces and cluster names, rather than complex IP addresses. This enhancement is particularly beneficial for dynamic environments running generative AI applications, offering adaptive security and compliance.
feature - AWS What's New infraawsengineeraws-eks ·
Amazon EKS supports Kubernetes version rollback
Amazon EKS now enables users to roll back to a previous Kubernetes minor version within 7 days post-upgrade, offering a safety net for production validation. This feature includes automated readiness checks and automatic worker node rollback for EKS Auto Mode clusters. It is available at no additional cost across all EKS regions.
feature - Terraform AWS Provider Releases terraforminfraawspreviewdeprecationengineerretailaws-bedrock ·
Terraform AWS Provider v6.53.0: New Bedrock features, breaking changes, and enhancements
Terraform AWS Provider v6.53.0 introduces new data sources and resources for AWS Bedrock, alongside breaking changes in Pinpoint SMS Voice V2 phone number management. It also includes several enhancements and bug fixes across services like API Gateway, ECS, and CloudWatch. Users should review the breaking changes and deprecations for potential impact on their infrastructure as code.
breaking feature patch announcement - AWS What's New infraawsengineeraws-cloudfront ·
AWS CloudFormation/CDK Express Mode Speeds Deployments
AWS CloudFormation and CDK now offer an express mode that can speed up infrastructure deployments by up to 4x. This mode completes stack operations once resource configuration is applied, skipping lengthy stabilization checks, which is particularly beneficial for developers and AI agents building infrastructure. Express mode is available now in all supported AWS Regions and can be enabled via the AWS CLI, SDKs, or the AWS Management Console without template changes.
feature patch - AWS What's New infraawsaws-s3 ·
CloudFormation and CDK pre-deployment validation now runs on all stack operations
AWS CloudFormation and CDK have introduced pre-deployment validation for all stack operations, including Create Stack and Update Stack. This change allows developers to catch common deployment errors in seconds, accelerating development feedback loops and reducing wasteful provision-and-rollback cycles. The validation is enabled by default and provides detailed error reporting, benefiting engineers and architects working with CI/CD pipelines and infrastructure automation.
feature - AWS What's New securityinfraawsengineer ·
Amazon GameLift Servers Adds DDoS Protection SDKs for C# and Unity
Amazon GameLift Servers now provides client SDKs for C# and Unity to protect multiplayer games against DDoS attacks. This feature integrates a relay network and token-based authentication to secure game sessions. It offers proactive UDP traffic protection with minimal latency, available at no extra cost to existing customers. The SDKs complement existing C++ and Unreal Engine support, enhancing developer flexibility.
feature - AWS What's New infraawsengineeraws-ec2 ·
EC2 Auto Scaling adds reservations-then-balanced AZ distribution
Amazon EC2 Auto Scaling introduces a new Availability Zone distribution strategy called reservations-then-balanced. This strategy prioritizes launching instances into pre-purchased capacity reservations before distributing remaining capacity across Availability Zones. It helps maximize utilization of reserved capacity while maintaining Auto Scaling's resilience, and is available today in all AWS commercial Regions.
feature - AWS What's New infraawsgaengineer ·
AWS Parallel Computing Service enables in-place Slurm version upgrades
AWS Parallel Computing Service (PCS) now supports managed in-place Slurm major version upgrades for existing clusters. This allows users to upgrade up to three major versions without disrupting running jobs, simplifying HPC workload management on AWS. The service automatically handles upgrades for controller, accounting database, and REST API components, preserving job continuity and accounting data. This feature is available in all AWS Regions where PCS is offered.
feature - AWS What's New infraaws ·
Amazon ElastiCache T4g nodes available in more AWS Regions
Amazon ElastiCache has added support for T4g node types in five new AWS regions, including Africa (Cape Town) and Asia Pacific (Jakarta). These nodes, powered by AWS Graviton2 processors, offer burstable CPU performance ideal for spiky workloads. This expansion aims to provide broader access to cost-effective and performant caching solutions for a wider range of users. Customers can now create or modify clusters with T4g nodes in these regions using the AWS Console, CLI, or API.
feature - AWS What's New infraawsengineer ·
AWS Capability Insights Open-Source Solution Launched
AWS has released Capability Insights, an open-source solution allowing users to deploy regional capabilities data within their own VPC. This self-hosted dashboard is designed for multi-Region architectures, data residency requirements, and compliance reporting, offering an alternative to publicly available data. It automatically updates with AWS service data and analyzes CloudTrail logs and CloudFormation stacks to provide a tailored view of used services, keeping all data within the user's VPC.
feature announcement - AWS What's New infraawsgaengineeraws-ec2 ·
Amazon Time Sync Service gains microsecond accuracy on 26 EC2 instance types
Amazon Time Sync Service now provides microsecond accurate time on 26 more EC2 instance types, leveraging the AWS Nitro System for improved application event ordering and transaction speed. This enhancement is accessible by creating a new Precision Time Placement Group (PTPG) for enabled instances. Customers needing both low latency and precision time can combine PTPG with Cluster Placement Groups. This feature is available today in all commercial AWS regions.
feature - AWS What's New infraawsgaengineer ·
Amazon ElastiCache adds Valkey 9.1 support
Amazon ElastiCache now supports Valkey 9.1, offering enhanced throughput, memory efficiency, and access control for node-based clusters. This upgrade benefits users by improving performance, reducing resource consumption, and simplifying access management through new commands and metrics. The new version is available now for new and existing ElastiCache clusters, with details available in the official launch blog.
feature - AWS What's New infraawsengineeraws-sagemaker ·
Amazon MWAA Serverless adds support for shared VPCs
Amazon MWAA Serverless now supports subnets shared via AWS Resource Access Manager (RAM), resolving a previous validation error. This change allows organizations using centralized networking to deploy MWAA Serverless workflows in member accounts using shared subnets, simplifying multi-account architectures. The update also benefits Amazon SageMaker Unified Studio Workflows configured with shared VPC networking and is available in all supported AWS Regions.
feature - AWS What's New infraawsgaengineeraws-ec2 ·
Amazon EC2 C8in instances expand to additional AWS regions
Amazon EC2 C8in instances, powered by custom Intel processors and Nitro cards, are now available in the US East (Ohio) and Europe (Ireland) regions. These instances offer up to 43% higher performance and significantly increased network bandwidth compared to previous generations, making them suitable for network-intensive workloads. They are available across multiple regions and purchasing options, including Savings Plans and On-Demand.
feature - AWS What's New infraawsengineeraws-ec2 ·
Amazon EC2 M8a instances now available in Mumbai region
Amazon EC2 M8a instances, powered by 5th Gen AMD EPYC processors, are now available in the Asia Pacific (Mumbai) region. These instances offer up to 30% higher performance and improved price-performance over M7a instances, making them suitable for latency-sensitive and demanding workloads. They are available in 12 sizes, including bare metal options, and are ideal for applications like financial services, gaming, and caching.
feature - AWS What's New infraawsaws-ec2 ·
Amazon EC2 C7a instances available in Singapore
Amazon EC2 C7a instances, powered by 4th Gen AMD EPYC processors, are now available in the Asia Pacific (Singapore) Region. These instances offer up to 50% higher performance and 2.25x more memory bandwidth than C6a instances, with new processor capabilities and support for up to 128 EBS volumes. They are suitable for compute-intensive and latency-sensitive workloads and are available via On-Demand, Spot Instances, and Savings Plans.
feature announcement - AWS What's New infraawsengineeraws-s3 ·
AWS Backup improves S3 backup copy performance
AWS Backup now offers up to 8x faster S3 backup copy operations for large buckets with low change rates by enhancing its change tracking mechanism. This optimization reduces the time for cross-account and cross-Region S3 backup copies by eliminating full object scans. The enhancement is automatically applied to new copy jobs at no additional cost.
patch - AWS What's New infraawsengineeraws-ec2 ·
Nested virtualization expanded on Intel EC2 instances and GovCloud regions
AWS has expanded nested virtualization support to new Intel instance families (like C7i, R7i, M7i) and additional AWS GovCloud (US) regions. This allows customers to run hypervisors like KVM and Hyper-V on EC2 instances, enabling use cases such as mobile app emulation and running WSL. This feature is now available for broader adoption within government and specialized commercial environments.
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About AWS release tracking on ReleaseBytes
AWS ships hundreds of service updates a month across EC2, Lambda, RDS, S3, EKS and the rest of the catalogue — far more than anyone can follow by reading the official What's New feed. ReleaseBytes ingests announcements from AWS's official release channels and the Terraform AWS provider changelog, summarises each one in plain English, and tags anything that is a breaking change, security advisory or deprecation so you can see at a glance whether it affects your workloads.
Frequently asked questions
How often are AWS release notes updated on ReleaseBytes? ›
Continuously. ReleaseBytes monitors the official AWS release channels around the clock and publishes a plain-English summary of each announcement shortly after it lands.
What kinds of AWS changes does ReleaseBytes track? ›
New features, enhancements, bug fixes, security advisories, breaking changes, deprecations and end-of-life announcements. Every item is tagged by type so you can filter to just the changes that need action.
How can I get alerts for new AWS releases? ›
Set up a free email or Slack alert filtered to AWS, subscribe to the weekly digest, or follow the RSS feed. Teams can also install the ReleaseBytes GitHub App or connect via MCP.
Where does the AWS release data come from? ›
From the official sources: Amazon Web Services releases and Terraform AWS provider. Every item links back to the original vendor announcement.