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 681 AWS releases · Updated
- AWS What's New awsgaengineeraws-ec2 ·
Amazon EC2 C9g and C9gd Instances with Graviton5 Processors Generally Available
Amazon EC2 C9g and C9gd instances, powered by fifth-generation AWS Graviton5 processors, are now generally available. These instances offer up to 25% better compute performance and are optimized for compute-intensive workloads like HPC, databases, and ML inference. They are available in select AWS regions and can be purchased through various pricing models, with availability starting today.
feature announcement - AWS What's New observabilityawsengineer ·
CloudWatch Logs adds resource tag enrichment to log events
Amazon CloudWatch Logs now automatically enriches log events with AWS resource tags at ingestion time. This feature simplifies filtering, searching, and analysis of logs using metadata like team ownership or environment, eliminating the need for custom pipelines or manual instrumentation changes. Tag enrichment is available in most commercial AWS Regions at no additional cost, requiring only a simple enablement setting.
feature patch - 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 awsmedia ·
AWS Clean Rooms adds intermediate tables for SQL queries
AWS Clean Rooms now supports intermediate tables for SQL queries, enabling multi-step analytical workflows with partners. This feature allows customers to write query results to an intermediate table within a collaboration for reuse in subsequent analyses. It provides increased flexibility for complex workflows, such as building shared ID mapping tables, all while maintaining the privacy boundary of the collaboration. This enhancement is beneficial for publishers and advertisers looking to optimize data analysis costs and performance.
feature - AWS What's New networkingawsengineer ·
Amazon Neptune adds IPv6 dual-stack support
Amazon Neptune now supports dual-stack mode, allowing clusters to accept connections over IPv4, IPv6, or both simultaneously. This enables organizations to adopt IPv6 while maintaining compatibility with existing IPv4 deployments without application changes. Dual-stack mode is available in all AWS Regions and supports both private and public network configurations.
feature - AWS What's New securityawsengineeraws-rdsaws-iam ·
Amazon RDS improves IAM database authentication with connection rate scaling
Amazon RDS now dynamically scales IAM database authentication connection rates based on instance resources. This enhancement is crucial for enterprise workloads needing to support high-volume connection patterns with IAM authentication. The scaling capability is available across all AWS Regions for supported RDS and Aurora engines. Reusing IAM principals or authentication tokens is recommended for optimal performance.
feature - AWS What's New governanceawsengineer ·
AWS Capability Insights: Open-source solution for regional capabilities data
AWS has launched Capability Insights, an open-source solution for deploying regional capabilities data within your own VPC. This self-hosted dashboard helps teams managing multi-Region architectures by providing data ownership, governance, and compliance within their network perimeter. The solution auto-refreshes data daily and includes a workload analysis tool that filters services based on your actual usage from CloudTrail and CloudFormation logs, simplifying gap analysis.
feature announcement - AWS What's New aisecurityawsengineeraws-sagemakeraws-bedrock ·
AWS Security Hub CSPM adds AI Security Best Practices standard
AWS Security Hub CSPM has launched a new AI Security Best Practices standard, featuring 31 automated controls to assess AI resource security. This standard helps continuously evaluate Amazon Bedrock and SageMaker workloads against security best practices, detecting misconfigurations without manual effort. It covers critical domains like network isolation and encryption, with controls spanning various AI infrastructure components and is available in all Security Hub CSPM 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 aiawsgaengineeraws-bedrock ·
Claude Sonnet 5 available on AWS via Bedrock and Claude Platform
Anthropic's Claude Sonnet 5, the latest generation Sonnet model, is now accessible on AWS. This release offers top-tier intelligence for coding, agents, and professional tasks at Sonnet pricing, balancing capability, cost, and speed. It's available through Amazon Bedrock with AWS managed features and directly via the Claude Platform on AWS, offering unified AWS billing and authentication. Customers can leverage its enhanced performance for complex coding, precise tool calling in agents, and structured analysis of knowledge work.
feature announcement - AWS What's New awsengineerfinancemedia ·
AWS End User Messaging adds rich media and interactive RCS features
AWS End User Messaging now supports rich media and interactive messaging for RCS, enabling features like rich cards, carousels, and suggestion buttons. This allows users to take actions directly within their messaging app, integrating backend services and AI seamlessly. The update includes new RCS message types and actions, plus new pricing for conversations in 21 countries, benefiting developers building interactive customer experiences.
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 aiawsgaengineeraws-sagemaker ·
SageMaker Inference speeds generative AI scale-out with container caching
Amazon SageMaker Inference now supports container image caching, reducing generative AI scale-out time by up to half. This feature pre-caches container images for new instances, eliminating the latency associated with pulling large images from ECR during scale-out events. The enhancement is automatically applied to existing SageMaker Inference configurations and is available in all AWS commercial regions.
feature patch - AWS What's New aiawsgapreviewengineerhealthcare ·
Amazon WorkSpaces for AI agents now generally available
Amazon WorkSpaces for agents is now generally available, allowing AI agents to securely operate desktop applications without modernization. This enables automation of critical business workflows like claims processing and trade settlement by providing agents with managed cloud workspaces that offer the same security and governance as human users. The service supports any agent framework using Model Context Protocol (MCP) and offers features like real-time session control and domain-joined fleet support.
feature announcement - AWS What's New aiawsgaengineeraws-sagemaker ·
SageMaker AI supports serverless customization for Gemma 4 models
Amazon SageMaker AI now offers serverless model customization for Google DeepMind's Gemma 4 E4B and 31B models, including supervised fine-tuning, direct preference optimization, and reinforcement fine-tuning. This allows users to tailor foundation models with proprietary data for domain-specific tasks without managing infrastructure. Serverless customization is now available for Gemma and expands options for other families like Nova, Nemotron 3, Qwen, Llama, gpt-oss, and DeepSeek.
feature - 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.
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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.