# Expression Language Technology Compatibility Kit, Version 4.0
Release Notes, September 2020

## About Expression Language Technology

## Technology Compatibility Kit (TCK) Contents

The Jakarta Expression Language specification, Version 4.0 Technology Compatibility Kit (TCK) includes the following items:

## Platform Notes

The Expression Language TCK tests have been built and tested with the Java™ Platform, Standard Edition SDK, Version 8 (JavaSE 8) and Jakarta EE Compatible Implementation, Eclipse GlassFish 6.0

Note that if you are using a different web server, you will need to make adjustments to the procedures outlined in these documents.

## Installing, Setting Up, and Running the EL TCK

Refer to the Jakarta Expression Language TCK 4.0 User's Guide, available in the EL TCK 4.0 documentation bundle, for complete instructions on installing, setting up, and running the Expression Language TCK. The online version of the JT Harness version 5.0 documentation is available here.

## Attributions

The EL TCK 4.0 includes software developed by the Apache Software Foundation (http://www.apache.org/), the dom4j Project (http://www.dom4j.org/), and the JDOMTM Project (http://www.jdom.org/). The Apache Ant Contrib project is located at http://ant-contrib.sourceforge.net/.