2006-01-27 Apache Tomcat A Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket specifications implementation. Apache Tomcat is a web server that is an open source software implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. The Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket specifications are developed under the Java Community Process. Apache Tomcat is developed in an open and participatory environment and released under the Apache License version 2. Apache Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. We invite you to participate in this open development project. Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations. Some of these users and their stories are listed on the PoweredBy wiki page. Java Tomcat PMC Latest Stable 10.1.x Release 2024-03-25 10.1.20 Latest Stable 10.0.x Release 2022-10-10 10.0.27 Latest Stable 9.0.x Release 2024-03-14 9.0.87 Latest Stable 8.5.x Release 2024-03-25 8.5.100 Java Servlet 4.0 JCP JSR 369 Java Servlet 3.1 JCP JSR 340 JavaServer Pages 2.1-2.3 JCP JSR 245 Expression Language 3.0 JCP JSR 341 Java API for WebSocket JCP JSR 356 Java Servlet 3.0 JCP JSR 315