Apache Tomcat^®

The Apache Tomcat^® software is an open source 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.

The Apache Tomcat software is developed in an open and participatory environment and released under the Apache License version 2. The Apache Tomcat project 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. To learn more about getting involved, click here.

Apache Tomcat software 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.

Apache Tomcat, Tomcat, Apache, the Apache feather, and the Apache Tomcat project logo are trademarks of the Apache Software Foundation.

The Apache Tomcat Project is proud to announce the release of version 9.0.20 of Apache Tomcat. The notable changes compared to 9.0.19 include:

• The useAsyncIO boolean attribute on the Connector element value now defaults to true.
• Stack traces written by the OneLineFormatter are fully indented. The entire stack trace is now indented by an additional TAB character.
• Various HTTP/2 improvements and stability fixes.

Full details of these changes, and all the other changes, are available in the Tomcat 9 changelog.

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The Apache Tomcat Project is proud to announce the release of version 8.5.41 of Apache Tomcat. Apache Tomcat 8.5.x replaces 8.0.x and includes new features pulled forward from Tomcat 9.0.x. The minimum Java version and implemented specification versions remain unchanged. The notable changes compared to 8.5.40 include:

• Stack traces written by the OneLineFormatter are fully indented. The entire stack trace is now indented by an additional TAB character.
• Avoid OutOfMemoryErrors and ArrayIndexOutOfBoundsExceptions when accessing large files via the default servlet when resource caching has been disabled.
• When running on newer JREs that don't support SSLv2Hello, don't warn that it is not available unless explicitly configured.

Full details of these changes, and all the other changes, are available in the Tomcat 8.5 changelog.

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The Apache Tomcat Project is proud to announce the release of version 7.0.94 of Apache Tomcat. This release contains a number of bug fixes and improvements compared to version 7.0.93.

• Fix for CVE-2019-0232, an RCE vulnerability on Windows
• Add support for Java 11 to the JSP compiler. Java 12 and 13 are also now supported if used with a ECJ version with support for those Java versions
• Update Tomcat's packaged-renamed copy of Apache Commons DBCP to the latest DBCP 1.4.x and Pool 1.6.x source (as of 2019-03-15) to pick up various bug fixes

Full details of these changes, and all the other changes, are available in the Tomcat 7 changelog.

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The Apache Tomcat Project is proud to announce the release of version 1.2.21 of Tomcat Native. The notable changes since 1.2.19 include:

• Fixed memory leaks when using NIO/NIO2 with OpenSSL for TLS.

Download | ChangeLog for 1.2.21

The Apache Tomcat Project is proud to announce the release of version 1.2.46 of Apache Tomcat Connectors. This version fixes a number of bugs found in previous releases.

Download | ChangeLog for 1.2.46

The Apache Tomcat Project is proud to announce the release of version 1.2.5 of the Standard Taglib. This tag library provides Apache's implementation of the JSTL 1.2 specification.

Version 1.2.5 is a minor bug fix release reverting a change made in 1.2.1 where <c:import> modified the HTTP method during POST operations, and fixing an issues that resulted in an AccessControlException during startup unless permission was granted to read the accessExternalEntity property.

Please see the Taglibs section for more details.

Download | Changes

The Apache Tomcat team is pleased to announce the release of Tomcat Maven Plugin 2.2. Changelog available here.

The Apache Tomcat Maven Plugin provides goals to manipulate WAR projects within the Apache Tomcat servlet container.

The binaries are available from Maven repositories. You should specify the version in your project's plugin configuration:

<plugin>
  <groupId>org.apache.tomcat.maven</groupId>
  <artifactId>tomcat7-maven-plugin</artifactId>
  <version>2.2</version>
</plugin>

or

<plugin>
  <groupId>org.apache.tomcat.maven</groupId>
  <artifactId>tomcat6-maven-plugin</artifactId>
  <version>2.2</version>
</plugin>

See former announcements.