This comprehensive guide shows a better way: Migrating from Swing to ZK Framework using the Strangler Fig (incremental) pattern.

Germany-based ZFabrik Software shares how ZK helps power its pharmaceutical Track & Trace serialization platform with efficient modular UI development, MVVM-based architecture, and a lean Java development workflow.

ZK Charts 12.5.0.0 is an updated release that upgrades the underlying Highcharts library from version 12.2.0 to 12.5.0.It also improves accessibility compatibility with ZK Jakarta, and resolves several sizing issues.

ZK Spring & ZK Spring Security upgraded to 7.0.4. ZK Springboot 3.x and 4.x branches updated to 3.5.13 and 4.0.5 respectively.

With expanded formula support and enhanced security, Keikai continues to deliver powerful spreadsheet capabilities for your ZK applications.

Check out the fixes in the release note.

We will introduce two AI-powered tools designed to enhance your development workflow: the ZK Documentation MCP Server and the zul-writer Agent Skill.

ZK 10 focuses on modularity, security, theming flexibility, and developer experience. This release brings notable improvements in Content Security Policy (CSP), multiple file downloads, modernized theming through CSS variables, and refined OSGi packaging, plus a set of security and stability updates.

ZK 10.3.0 PE/EE will be released soon, and the freshly (nightly) build is now ready for testing.

As 2025 comes to a close, we extend our heartfelt thanks for your continued trust, collaboration, and encouragement throughout the year. We wish you a joyful holiday season and a wonderful start to 2026!

The migration of our issue tracker to Atlassian’s latest cloud-based platform has been successfully completed.

We’ve published a new blog introducing our ZK Learning Map, a visual guide that brings together key documentation, free online course videos, forum links, demos, and more.

ZK 10 has been proven stable in production for over a year by enterprise users worldwide. If you’re planning an upgrade, we offer a free migration consultation (via email or a one-hour live session) to help make your transition smooth.

ZK Documentation moved to docs.zkoss.org with a refreshed interface, improved performance, AI-friendly design, and a new feedback feature that lets you report missing or incorrect documentation via GitHub issues.

Join our upcoming Ask The Expert public training session where you’ll learn how to leverage the Browser-Kit addon – a powerful wrapper that brings native browser APIs to your Java code!

As summer wraps up, it’s a great time to look back on the progress and updates across the ZK community from the past few months!

Keikai 6.2.0 delivers enhanced stability, security, and performance, incorporating around 20 fixes and improvements.

ZK 9.6.6 release delivers important security fixes specifically for the ZK 9.6 branch. For more details, please refer to the bug-fix list below.

The ZK Framework UI Kit has been updated! Version 1.3 includes improved focus states for various components.

Based on community feedback and early version maturity, we’re releasing 10.1.0 CE to ensure a more stable foundation for open-source users.

ZK 10.2.0 will bring in more than 30 new features and 60 bug fixes, including enhanced usability and accessibility through the addition of focus states across multiple components.

From powerful UI elements like Keikai Doc PE, Tri-State Tree, and Font Awesome 6 integration, to interactive components such as signature, camera input, and kanban-style layouts, this training is designed to help you discover what’s possible with modern ZK.