Eclipse 1.0 Beta 2 — Faster, Smarter, Steadier

Beta 2 is our biggest stability pass yet. The headline features from Beta 1 are all still here — this release is about making them rock-solid. Here's what's new.

Smarter Java detection

Eclipse now detects any installed jre{N} runtime on your system, including on-demand runtimes like Java 25 that get pulled in for the newest snapshots. If the right version isn't already present, Eclipse downloads it once in the background the first time you launch a version that needs it. No manual setup, no version mismatches, no "unsupported class file" errors.

A hardened release pipeline

Every Eclipse build now goes through a tightened, automated release workflow before it reaches you. That means more consistent builds, reproducible installers, and fewer surprises between versions. It also lays the groundwork for code-signing, which is next on our list.

Stability across the board

• Launching — smoother first-launch flow and clearer error messages when something a version needs isn't available yet.
• Hosting — more reliable tunnel setup when you host a world for friends.
• Updates — the in-app updater is more resilient on flaky connections.

On SmartScreen & antivirus

Because Eclipse is new and not yet code-signed, Windows SmartScreen may warn you on first launch, and a couple of AI-based scanners may show a false positive. No signature-based engine detects anything — these are heuristic guesses, expected for new software, and they clear as we build download reputation. We've written up exactly why this happens — and how to verify Eclipse is clean — on our Security page.

What's next

Code-signing, more customization tools, and continued performance work. If you hit a bug or have an idea, our Discord is the fastest way to reach us — we read everything.

Grab the latest build on the Download page and let us know what you think.