Categories

Implementation	pac4j version (latest)	Framework version	JDK requirement (for that version)
spring-webmvc-pac4j	6.x	Spring 5.x - 6.x	JDK 17+
spring-webflux-pac4j	6.x	Spring WebFlux 5.x - 6.x	JDK 17+
jee-pac4j	6.x	JEE 8+ / Jakarta EE 9+	JDK 17+
buji-pac4j	6.x	Apache Shiro 1.x	JDK 17+
spring-security-pac4j	6.x	Spring Security 5.x - 6.x	JDK 17+
play-pac4j	6.x	Play Framework 2.8+	JDK 17+
vertx-pac4j	6.x	Vert.x 4.x	JDK 17+
spark-pac4j	6.x	Spark Java 2.9+	JDK 17+
javalin-pac4j	6.x	Javalin 5.x - 6.x	JDK 17+
ratpack-pac4j	6.x	Ratpack 1.9+	JDK 17+
undertow-pac4j	6.x	Undertow 2.2+	JDK 17+
jax-rs-pac4j	6.x	JAX-RS 2.0+ / Jakarta RS 3.0+	JDK 17+
dropwizard-pac4j	6.x	Dropwizard 5.0+	JDK 17+
lagom-pac4j	3.x	Lagom 1.5 - 1.6	JDK 8+
http4s-pac4j	6.x	Http4s 0.23+	JDK 17+
Knox	3.x	Apache Knox 1.x+	JDK 8+
jooby-pac4j	6.x	Jooby 3.x	JDK 17+
pippo-pac4j	2.x	Pippo 1.x	JDK 8+
CAS	6.x	Apereo CAS 6.x+	JDK 17+

This table lists the latest version of each implementation. The current pac4j 6.x line requires JDK 17; the older 4.x (JDK 8) and 5.x (JDK 11) lines are no longer maintained, though critical security fixes are backported to them — see the security policy.