ESLint expanded language support in 2025 with official CSS and HTML plugins, introduced multithreaded linting for 30-300% performance improvements, and integrated with AI tools like GitHub Copilot. Weekly npm downloads grew 65% to over 70 million. The project is preparing for v10.0.0, which drops Node.js <20.19.0 support and removes the legacy eslintrc system. ESLint received $204,452 in income against $262,150 in expenses, resulting in a $57,698 net loss as the team invested reserves into development. Major sponsors included Automattic, Airbnb, Meta, and AG Grid at $20-24k each.
Table of contents
Expanding language support: CSS and HTMLESLint continues to growIntegrating with AIPerformance and workflow improvementsUpdates to support the latest ECMAScript featuresThe road to ESLint v10.0.0Financials reviewLooking forward to 2026Sort: