Which Version of J2EE?

This book covers Java 2 Enterprise Edition (J2EE) version 1.3, which is supported by BEA WebLogic Server 8.1. J2EE 1.3 includes many technologies such as JavaServer Pages 1.2, Java Servlets 2.3, and Enterprise JavaBeans 2.0. Sun has just released J2EE version 1.4, and subsequent versions of WebLogic might support it.