Java and Kotlin by IntelliJ IDEA has reached 1.0!
Built together with @cursor_ai, this LSP-based extension release is a major leap toward bringing our JVM technology beyond the IDE – wherever you’re working, whichever editor or agent you use.
Read more👇
blog.jetbrains.com/idea/2026…
New IntelliJ IDEA Tech Talk episode!
@wolfs42, Principal Software Engineer at Develocity, joins @antonarhipov to investigate unnecessary task runs, check test history, and see how AI handles build problems in IntelliJ IDEA.
👉️ piped.video/xBNBjYH-foE 👈️
An agent writes the code now. Do you still need an IDE?
You do if you want to understand and verify what the agent did.
🎥 In our new video, we talk about the role of an IDE now that humans aren't the only ones working on the code. piped.video/AHFGMkzrfwM
Confused why a route that worked yesterday now returns 403, and reading SecurityConfig doesn't explain it? @IntelliJIDEA shows the roles actually enforced by the running app, right at the endpoint. #SpringDebugger 👇
jb.gg/l37xwl
Missed @holly_cummins’ session at #IntelliJIDEAConf?
“Six and a Half Ridiculous Things to Do With Quarkus” brings memes, lemons, and Minecraft together with practical lessons for Java developers.
Watch on YouTube: piped.video/jfHdEAy-QWk
We've just shipped Java and Kotlin by IntelliJ IDEA 1.0 – our LSP-based extension’s first stable release for VS Code and Cursor.
@MarcoBehler, Head of JVM Ecosystem, breaks down why it matters, what’s in 1.0, and what’s next👇
More details in our blog: jb.gg/ypeivo
We connected IntelliJ IDEA’s code intelligence to Claude Code and Codex, then tested the setup with Netflix.
The first public results are out.
Typical efficiency gains: 20–30%.
Best code-navigation case: ~65%.
These results come from two real codebases. The efficiency metric averages token savings and time savings.
Correctness stayed stable or improved.
Here’s what we actually built.
The code engine behind IntelliJ IDEA ran headlessly, giving agents access to its capabilities through a CLI backed by a daemon.
LSP alone wasn’t sufficient.
Agents needed a convenient way to invoke the tools. The backend also needed to stay running and keep the project index warm between calls.
The idea is straightforward.
An IDE has already mapped the structure of your code and its dependencies — including what’s inside compiled libraries.
An agent can use that knowledge instead of spending time and tokens reconstructing it.
But the most interesting finding was which models benefited most.
The strongest models saw the biggest gains.
Especially at higher reasoning effort.
In these experiments, more capable models were also better at taking advantage of code intelligence.
My takeaway: better models and better tools aren’t competing bets.
You don’t have to choose between investing in model intelligence and giving agents better access to your codebase.
The two can reinforce each other.
Huge thanks to @pbakker and the Netflix team for working with us on this!
Couldn’t join #IntelliJIDEAConf 2026 live?
Watch From Chat to Goals by Mark Pollack and see how autonomous agents can work in real Java projects.
👉 Watch the recording on YouTube: piped.video/Ko9VEOHhzoE
Need to test an endpoint's admin-only code path but don't have that account? In @IntelliJIDEA, unlock with custom authorities from the inlay popup and the response itself changes — no account provisioning needed, just for this debug run 👇
jb.gg/l37xwl
Better yet, try it yourself. The fastest way to get your hands on Air:
1️⃣ Download IntelliJ IDEA 2026.3 EAP: jb.gg/9un5ca.
2️⃣ Look for the Air icon or press ⌘2 (Ctrl+2).
Holy moly, we’ve seen a lot of interest in JetBrains Air since the announcement!
-Air in IDEs: for developers
-Air Teams: for team leads & engineering managers
-Air Governance: for CTOs & engineering directors
Here’s how to try these things:
Links below 🧵
At @DevoxxBelgium today? Join our live demos at @JetBrains booth:
11:30-11:50 am – Hibernate Debugger Internals
2:40-3:00 pm – Debugging Production With AI and IntelliJ IDEA
3:50-4:20 pm – What’s New in @Kotlin
Drop by to chat about Java, Kotlin, coding agents, and what’s new at JetBrains.
A new episode of IJ Tech Talks is out! 🎙️
Architecture as code. Roland Weisleder joins IntelliJ IDEA Tech Talks to turn architecture rules into ArchUnit tests, catch cycles before they catch you, and keep docs and code from drifting apart.
👉️ piped.video/hEnSy8vlK10 👈️
Open a Java, Kotlin, or Scala file in IntelliJ IDEA 2026.2 or 2026.3 EAP and type .. anywhere in the editor. Command completion shows what you can do right there, whether you’re near a method, an expression, or a spot that needs docs. Learn more 👇
jb.gg/l43t9s
Java and Kotlin by IntelliJ IDEA has reached Release Candidate!
The LSP-based extension brings IntelliJ IDEA’s powerful code intelligence beyond the IDE – starting with VS Code, Cursor, and more.
See the progress we’ve made so far and try it out 👇
jb.gg/zj0nwa
At @DevoxxBelgium today? Don’t miss “Build the Builder: A Java Coding Agent in Your IDE with ACP” with @VadimBriliantov at 12:00–12:50.
Stop by @JetBrains booth #1 for live demos throughout the day 👇