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 678 AWS releases · Updated

  • AWS News Blog bloginfraawsengineer ·

    AWS CloudFormation Express mode accelerates infrastructure deployments

    AWS CloudFormation now offers an Express mode that significantly reduces deployment times, up to 4x faster for iterative development and AI tools by skipping extended stabilization checks. This mode completes deployments once resource configuration is applied, benefiting use cases like rapid infrastructure iteration and AI-assisted development where sub-minute feedback is valuable. Express mode is available today in all AWS commercial regions and works with existing templates, though rollback is disabled by default. Developers using the AWS Management Console, CLI, SDKs, CDK, or AI tools like Kiro can leverage this new deployment option.

    feature
  • AWS News Blog blogaiinfraawsengineer ·

    AWS Weekly Roundup: New instances, AI, OpenSearch, and service lifecycle updates

    AWS announced several new features and updates, including Graviton5-powered EC2 instances, CloudFormation Express mode, EKS version rollbacks, and ACME support in ACM. New AI capabilities include Claude Sonnet 5 on AWS, Amazon WorkSpaces for AI agents, and SageMaker AI enhancements. Additionally, the update details several AWS service lifecycle changes, including services moving to Maintenance, Sunset, and End of Support phases.

    feature patch deprecation announcement
  • AWS News Blog blogaiawsengineeraws-bedrock ·

    Amazon Bedrock Managed Knowledge Base simplifies enterprise AI data integration

    AWS announced Amazon Bedrock Managed Knowledge Base, a new capability for building enterprise-grade generative AI applications using proprietary data. It simplifies the complex process of connecting to disparate data sources, optimizing retrieval-augmented generation (RAG) accuracy, and managing scalable infrastructure. This managed primitive abstracts away RAG pipeline components, allowing developers to focus on outcomes. It offers native data connectors, automatic parsing strategies, and an "Agentic Retriever" for complex queries, aiming to accelerate development and improve AI application accuracy. It's available now in the Amazon Bedrock AgentCore and Bedrock consoles.

    feature
  • AWS News Blog blogaiawsgaengineer ·

    AWS Summit New York: Key announcements in AI agents, security, and developer tools

    AWS announced significant updates at its New York Summit, focusing on enhancing AI agents with new knowledge connection and retrieval capabilities via Amazon Bedrock. Key features include improved agent security with AWS Continuum, faster development cycles with tools like Kiro and AWS DevOps Agent, and enhanced data context with Amazon S3 annotations. These advancements aim to empower developers and enterprises to build, secure, and deploy more capable AI-driven applications and autonomous workflows. Notable updates include Amazon Bedrock Managed Knowledge Base, Web Search on Bedrock AgentCore, and new Amazon ECS auto-scaling capabilities.

    feature announcement
  • AWS News Blog bloginfraawsgaengineeraws-eks ·

    Amazon EKS adds Kubernetes version rollback feature

    Amazon EKS now supports Kubernetes version rollbacks, allowing cluster administrators to revert to a previous Kubernetes minor version within seven days of an upgrade if issues arise. This feature provides a safety net, addressing a long-standing limitation in Kubernetes where control plane upgrades were a one-way operation. It applies to all EKS clusters and offers enhanced functionality for EKS Auto Mode with a cancel API for node rollbacks, aiming to reduce upgrade friction and keep clusters on supported versions. The capability is available today at no additional cost in all commercial AWS Regions.

    feature patch
  • AWS News Blog blogsecurityawsengineer ·

    AWS Security Agent Enhances DevSecOps with Threat Modeling and IDE Integrations

    AWS Security Agent has introduced several new features, including threat modeling, expanded code review capabilities with pull request scanning and remediation, and new IDE integrations like Kiro power and a Claude Code plugin. These updates aim to proactively secure applications throughout the development lifecycle by identifying and mitigating risks earlier. The new features are available in AWS commercial regions and are geared towards engineers and architects involved in application security and development.

    feature announcement
  • AWS News Blog blogaiawsengineeraws-ec2 ·

    AWS Weekly Roundup: AI CX Designer, EC2 AMI Watermarks, Open Governance for MySQL

    AWS announced several updates, including a no-code AI-powered customer experience designer for Amazon Connect in preview, and EC2 AMI watermarking for private image identifiers. Lambda MicroVMs offer isolated compute with near-instant launch, while MSK and OpenSearch Service gain AI-assisted operational guidance. These updates aim to accelerate AI adoption and improve infrastructure management for developers and business teams.

    feature announcement patch
  • AWS News Blog bloginfraawsgaengineeraws-ecs ·

    Amazon ECS adds high-resolution metrics for faster service auto scaling

    Amazon ECS now supports high-resolution (20-second) metrics for service auto scaling, enabling faster detection and response to load changes. This improvement reduces scale-out time by up to 76% and overall scaling time by up to 72%, leading to better application performance, cost optimization, and simpler configurations. The feature is available today for all ECS compute options and requires enabling high-resolution metrics in CloudWatch, which may incur additional costs.

    feature

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.