On March 19, OpenAI announced that it would acquire Astral, the company behind uv, Ruff, and ty. The Astral team, led by founder Charlie Marsh, will join OpenAI’s Codex team. The deal is subject to regulatory approval. First and foremost: congratulations to Charlie Marsh and the entire Astral team. They shipped some of …

Read More

“There’s never been a better time to be a JVM or Spring developer.” The Spring ecosystem has evolved dramatically over the past decade, from traditional enterprise applications to microservices, distributed systems, and now AI-powered services. Few people have witnessed that evolution as closely as Josh Long, who has …

Read More

Last week, in the first part of this series, we explained why two analysts can produce two different answers from the same data, and why that problem gets worse with AI agents. Without a shared semantic layer defining metrics and business logic, AI will generate answers faster, but not more reliably. Today we’ll focus …

Read More

The Rider 2026.1 Release Candidate is ready for you to try. This upcoming release brings improved support for the .NET ecosystem and game development workflows, as well as refinements to the overall developer experience. Rider 2026.1 allows you to work with file-based C# programs and offers an improved MAUI development …

Read More

The ReSharper 2026.1 Release Candidate is ready for you to try. This release focuses on making everyday .NET development faster and more predictable, with improvements to code analysis and language support, a new way to monitor runtime performance, and continued work on stability and responsiveness in Visual Studio. If …

Read More

The full KotlinConf’26 schedule is finally live, and it’s packed! With parallel tracks, deep-dive sessions, and back-to-back talks, planning your time can feel overwhelming. When almost every session looks interesting, deciding where to spend your time isn’t easy. To help you navigate it all, the Kotlin team has …

Read More

Most enterprises claim to govern their AI use. They have policy documents, review boards, approval flows, and sandbox environments. On paper, control exists. Then agents enter real software delivery workflows. They generate code, refactor systems, open pull requests, query internal data, trigger automations, and …

Read More

Modern Java development often involves web technologies. To make this workflow more accessible and smoother, we’re making some core JavaScript, TypeScript, HTML, and CSS features – previously included with the Ultimate subscription only – available for free in IntelliJ IDEA v2026.1. JavaScript, TypeScript, HTML, CSS, …

Read More

This article was written by an external contributor. Every technology has its misuses, and different ecosystems use different approaches to prevent them. In the Kotlin ecosystem, I believe the philosophy has always been to make APIs so good that correct usage is simple and intuitive, while misuse is harder and more …

Read More

Start builds, tail logs, and manage agents and queues – without switching windows. Whether you are debugging a failed build, managing build agents, or scripting your deployment pipeline (or your AI coding agent is doing so) – there are times when opening a browser is one step too many. TeamCity CLI is a lightweight, …

Read More

The Kotlin Foundation is joining Google Summer of Code (GSoC) 2026! If you are a student or an eligible contributor looking to spend your summer working on a real-world open-source project, this is your chance to make a meaningful impact on the Kotlin ecosystem while also benefiting from the mentorship of experienced …

Read More

Many organizations adopt Jenkins because it’s flexible and widely supported. Over time, however, that flexibility often turns into operational overhead: maintaining plugins, debugging pipelines, and coordinating upgrades across teams. CloudBees CI and JetBrains TeamCity represent two different ways of addressing this …

Read More

In JetBrains IDEs, UI freezes are often blamed on “heavy work on the EDT,” but our recent investigations show another common culprit in plugins: long, non-cancellable read actions running in background threads. We receive a lot of freeze reports via our automated exceptions reporting system, and many reports actually …

Read More

We’ve just released IntelliJ IDEA 2025.3.4. This update introduces full support for Java 26 along with several notable improvements. You can update to this version from inside the IDE, using the Toolbox App, or using snaps if you are a Ubuntu user. You can also download it from our website. Here are the most notable …

Read More

The Java release cadence means we get a new Java version every six months. Java 26 was released on March 17, 2026. At JetBrains, we are committed to supporting the latest technologies in IntelliJ IDEA and adding useful enhancements for both stable and preview features. In this blog post, we will give you an overview …

Read More

Toolbox App 3.4 brings several long-awaited fixes alongside new capabilities for plugin developers. You can now hook into the remote IDE launch lifecycle, the Toolbox window behaves correctly in full-screen mode on macOS, and Windows users with non-ASCII usernames no longer need workarounds. The jetbrainsd service …

Read More

Adding AI agents to your enterprise backend shouldn’t mean compromising your architecture. If your core systems are built in Java, orchestrating LLMs shouldn’t require you to introduce separate Python microservices or rewrite your stack. Today, we are launching Koog for Java. Originally built to keep pace as JetBrains …

Read More

The problem: Good code is not always accepted code AI agents can write working code. They can make changes that compile, pass tests, and finish tasks. And yet the pull request might still be rejected. That happens because every codebase has its own internal logic. Teams have naming conventions, preferred APIs, and …

Read More

Picture a typical workday. You’re in a meeting. Someone asks the typical question: “So, how was revenue last month?” You pull up your dashboard and respond, “Looks like we’re up 5%.” The CFO then opens his laptop, checks his numbers, and says, “Well, from what I’m seeing, we’re down 2%.” And from that moment on, […] …

Read More

The Kotlin 2.3.20 release is out! Here are the main highlights: For the complete list of changes, refer to What’s new in Kotlin 2.3.20 or the release notes on GitHub. How to install Kotlin 2.3.20 The latest version of Kotlin is included in the latest versions of IntelliJ IDEA and Android Studio. To update to […] Link …

Read More