AWS Developer Tools Blog

In July 2026, we announced our annual minor release cycle for updating the AWS SDK for .NET build targets. Today we’re releasing 4.1, the first release on this schedule. Along with the build target changes, we made dependency changes that improve performance and make the SDK easier to use. If your project targets a version […]

In May 2026, we announced an opt-in for updated retry behavior for the AWS SDKs, AWS Command Line Interface (AWS CLI), and AWS Tools for PowerShell. Starting November 10, 2026, the updated behavior is the default, and we have removed the opt-in. Availability varies by SDK and tool. See the SDK availability and GitHub issues […]

Until now, the AWS SDK for Java 2.x could generate presigned URLs through S3Presigner but could not consume one to download an object. Developers had to fall back to a low-level HTTP client, forgoing the SDK’s built-in retries, metrics, and checksum validation. Starting with version 2.48.0, you can download Amazon Simple Storage Service (Amazon S3) […]

In alignment with our AWS SDKs and Tools maintenance policy, the AWS IoT Device SDKs MQTT 3.1.1 and V1 service clients will enter maintenance mode in April 2027. There is no planned end-of-support date, and we will announce any change to that separately. We recommend that you adopt the MQTT 5 client and V2 service […]

The first service call from an application that uses the AWS SDK for Java 2.x takes longer than subsequent calls. This problem is known as cold start. The new SDK client warm-up feature reduces cold-start latency. One call to SdkWarmUp.warmUp() during application startup exercises the SDK request path before your first service call. With AWS […]

The AWS CRT for JavaScript is adopting a policy that aligns with the official Node.js release schedule, providing a predictable timeline for when support for older Node.js versions is dropped. The AWS IoT Device SDK for JavaScript v2 is built on top of AWS CRT for JavaScript, so it shares the same minimum Node.js version. […]

Without generated standalone types, a service that publishes events ends up with the payload defined manually in several places. The service has its own definition, and every consumer has their own definition. This is tedious, error-prone busywork for consumers. And as the service evolves, changes to events can expose bugs. A missing field or changed […]

Explore and use Amazon Simple Storage Service (Amazon S3) like a file system with the new S3 PowerShell Drive. You can mount your S3 storage as a drive and navigate it with the same commands that are frequently used for local files: Set-Location, Get-ChildItem, Get-Content, Set-Content, and Remove-Item. Browse buckets and prefixes, read and write […]

Until now, signing an AWS request that no generated SDK client covered meant reaching into internal SDK types or hand-writing the AWS Signature Version 4 (SigV4) algorithm. The AWS SDK for .NET now includes a public SigV4 signer you can call directly. Use the signer to add SigV4 authentication to an HTTP request, or to […]

AI coding agents such as Kiro, Claude Code, Codex, Cursor, and others play an increasingly important role in developer workflows. They write code, fix bugs, scaffold projects, and build infrastructure. By default, these agents have general knowledge of AWS. The Agent Toolkit for AWS gives them specialized, up-to-date expertise, so they’re more likely to pick […]