Announcements

CrossModel demonstrates a unified modeling experience built on Eclipse Theia, combining form-based, graphical, and textual editors, all synchronised via a language server.

Project context files are the secret to reliable, efficient AI coding. Learn 3 proven ways to make them more effective, and turn AI from a guessing game into a productive teammate. In the AI-native Theia IDE and any other tool such as Copilot, Claude Code, Cursor, and more.

This white paper outlines what open source stewards need to understand about their obligations, what processes may need to evolve, and where more discussion is needed.

Eclipse Theia 1.66 delivers a feature-rich update with persistent AI chat sessions, slash commands, agent modes, and new GitHub and Project Info agents. It also brings significant debugging, UI, and API improvements. Check out the full announcement!

This commitment will benefit multiple core services, including Open VSX Registry, the open source registry for Visual Studio Code extensions that powers AI-enabled development environments such as Kiro and other leading tools.

Theia AI empowers developers with an open, flexible framework for building advanced AI capabilities into tools and IDEs.

ADL streamlines agent design, helping enterprises cut complexity, speed deployment, and scale agentic AI with confidence.

Over the past few weeks, the Open VSX team and the Eclipse Foundation have been responding to reports of leaked tokens and related malicious activity involving certain extensions hosted on the Open VSX Registry.

BRUSSELS – 30 September 2025 – The Eclipse Foundation, one of the world’s largest open source software foundations, today announced the availability of The State of Enterprise Java: 2025 Jakarta EE Developer Survey Report,

By adopting Eclipse Temurin and joining the Adoptium Working Group, Bloomberg is strengthening their infrastructure, reducing costs, and leading open source innovation.

The global software ecosystem runs on open source infrastructure. As demand grows, we invite the businesses who rely on it most to play a larger role in sustaining it.

An open letter from the stewards of public open source infrastructure, signed by Alpha-Omega, Eclipse Foundation (Open VSX), OpenJS Foundation, Open Source Security Foundation, Packagist (Composer), Python Software Foundation (PyPI), Rust Foundation (crates.io), Sonatype (Maven Central).

The global open source community will gather in Brussels from 21 to 23 April 2026 for the Open Community Experience (OCX) 2026. It isn’t just another conference; it’s where six open source communities collide to shape the future of software, developer tools, mobility, AI, compliance, and research. With one pass, you get access to six experiences and endless opportunities.

Microsoft, Red Hat, and other new members join ORC, as the group marks a key milestone with its inventory of CRA resources.

EU-funded open source initiative delivers free tools to help SMEs and developer teams meet Cyber Resilience Act requirements.

Your organisation can play a leading role in making open source a shared experience. Check out Gaël Blondelle's new blog post to find out why you should sponsor OCX26.

A vulnerability in the Eclipse Open VSX Registry’s automated publishing system could have allowed unauthorized extension uploads. It did not affect existing extensions or admin functions.

The issue was reported on May 4, 2025, fully fixed by June 24, and followed by a complete audit. No evidence of compromise was found, but 81 extensions were proactively deactivated as a precaution.

We would like to thank the researchers for reporting the issue, reviewing the proposed fixes, and supporting the resolution process, as well as the members of the Eclipse Open VSX team who were involved.

Our annual report highlights the key achievements of the past year, including significant project and industry collaboration milestones, membership growth, and notable community engagement initiatives.

The new Jakarta EE release modernises testing, boosts developer productivity, improves performance, and expands Java platform support.