This table indicates the minimum supported version of ZK for use at specific servlet version.

Servlet compatibility table
Servlet version
2.4
3.0
4.0
5.0

(1) = ZK 10 requires Servlet 3.1 or later.

(2) = Require configuration through web.xml or zk-web-fragment.jar See the /zk_config_ref/web_xml documentation page for more information on web.xml configuration.