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JetBrains Newsletter

December 2025

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Product and Community News | Learning Resources

Build a Kotlin Multiplatform Project and Win a Trip to KotlinConf 2026

The annual Kotlin Multiplatform Contest for students and recent graduates is open! Build a project with Kotlin Multiplatform, and you could win a trip to KotlinConf 2026 in Munich, Germany. Authors of all other valid entries will receive Kotlin souvenirs.

I'm feeling lucky →

Sky’s the Limit:
The Cloud9 × JetBrains Global Hackathon Is Live

Last month, we announced that JetBrains is now the Official AI-Powered Coding Partner of Cloud9. The response from the community has been incredible, and today, we’re taking the next step in that journey.

We’re excited to launch Sky’s the Limit, a global hackathon designed for developers, esports fans, analysts, and creators who want to push competitive gaming forward. Whether you’re fascinated by data-driven coaching, obsessed with the pick/ban phase, or love building interactive fan experiences, this is your chance to make something game-changing.

And yes, the prizes are epic →

🎙 Why Should We Welcome AI Skeptics?

In our latest off-stage interview, Advait Sarkar, Senior Researcher at Microsoft, argues why skepticism is the engine of progress. He also admits to which early AI prediction he got completely wrong.

Watch the talk →

Product and Community News

What’s New in TeamCity 2025.11

AI Assistant, new pipeline features, enhanced server encryption settings, and more. Read on to learn what's new in our powerful CI/CD solution by JetBrains.

Learn more →

Laravel Support Is Now Built Into PhpStorm

For years, PhpStorm has been the go-to IDE for PHP developers – powerful and deeply integrated with the language. But there was one thing many kept asking for: Laravel support out of the box. Now it's here!

See the story behind the update →

Open Source in Focus: 4 Tools That Keep Systems Running

Discover four standout open-source projects – frp, Sniffnet, Vitest, and bottom. Each shares the same goal: keeping systems reliable.

Check them out →

Learning Resources

Building AI Agents in Kotlin – Part 2: A Deeper Dive Into Tools

How do AI agents really use tools? In part two of our series, we extend our minimal coding agent with a custom ExecuteShellCommandTool, letting it run code, observe failures, and iterate with real feedback.

Dive deep →

What Developers Really Mean By "Bad" Code

In Qodana's latest opinion piece, the team shares attributes that make code hard to read, scale, maintain, and secure.

Read the article →

The Ultimate Guide to Successfully Adopting Kotlin in a Java-Dominated Environment

Adopting Kotlin in a Java world is not about flipping a switch or rewriting everything “the right way”. It’s about people, timing, risk, and trust. In this post, we’ll tie the series together and provide you with a single file you can hand to any engineer, tech lead, or manager to ensure your Kotlin adoption is done right.

Learn more →

Best regards,
The JetBrains team

Make it happen. With code.