Explore your options as Vaadin 24 maintenance ends June 16. Upgrade to Vaadin 25.1 for enhanced features or consider Extended Maintenance for security support.

Vaadin is a platform for building web applications with Java. Readers can learn about Java web development, UI components, and web application architecture. With tutorials, documentation, and community support, Vaadin offers resources for developers interested in creating modern and scalable web applications.

Vaadin

Vaadin 24 free maintenance ends June 16, 2026. Teams have two options: upgrade to Vaadin 25.1 or purchase Extended Maintenance for up to 15 years of security patches. Vaadin 25.1 brings simpler CSS-based theming with a new Aura theme, ~30% fewer dependencies, 50%+ faster dev-mode startup, and a new technology baseline requiring Java 21, Spring Boot 4, Spring Framework 7, and Node.js 24+. A practical 12-step checklist covers Java version checks, Spring Security 7 breaking changes, Material theme migration, Jackson 2→3 migration, and test setup updates. Teams already on Java 21 and Spring Boot 3.x are advised to upgrade now; others should consider Extended Maintenance while planning the upgrade.

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