Apache Wicket 9.16.0 released

26 Nov 2023

The Apache Wicket PMC is proud to announce Apache Wicket 9.16.0!

Apache Wicket is an open source Java component oriented web application framework that powers thousands of web applications and web sites for governments, stores, universities, cities, banks, email providers, and more. You can find more about Apache Wicket at https://wicket.apache.org

This release marks another minor release of Wicket 9. We use semantic versioning for the development of Wicket, and as such no API breaks are present in this release compared to 9.0.0.

Using this release

With Apache Maven update your dependency to (and don’t forget to update any other dependencies on Wicket projects to the same version):


Or download and build the distribution yourself, or use our convenience binary package you can find here:

  • Download: http://wicket.apache.org/start/wicket-9.x.html#manually

Upgrading from earlier versions

If you upgrade from 9.y.z this release is a drop in replacement. If you come from a version prior to 9.0.0, please read our Wicket 9 migration guide found at

  • http://s.apache.org/wicket9migrate

Have fun!

— The Wicket team


This Release

CHANGELOG for 9.16.0:

  • [WICKET-7056] - HttpSessionStore#getAttribute called on invalidated session
  • [WICKET-7074] - [AJAX] malformed XML is produced if an error is produced during AJAX rendering and a redirect is issued
  • [WICKET-7076] - JavaScriptReferenceType newly created is not serializable
  • [WICKET-7081] - Open packages to expose resources to other modules
  • [WICKET-7078] - CSP: inline JS in Choices and Selection of Palette
  • [WICKET-7080] - [Events] make default events delivery machinery pluggable and roll usable annotation based one
  • [WICKET-7082] - Easier to work with polymorphic values inside IModel
  • [WICKET-7083] - Trigger client side validation when using SubmitLinks
  • [WICKET-7073] - Update JQuery to 3.7.1