Apache Tomcat^®

The Apache Tomcat^® software is an open source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications. These specifications are part of the Jakarta EE platform.

The Jakarta EE platform is the evolution of the Java EE platform. Tomcat 10 and later implement specifications developed as part of Jakarta EE. Tomcat 9 and earlier implement specifications developed as part of Java EE.

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 11.0.0-M4 (alpha) of Apache Tomcat. This release is a milestone release and is targeted at Jakarta EE 11.

Users of Tomcat 10 onwards should be aware that, as a result of the move from Java EE to Jakarta EE as part of the transfer of Java EE to the Eclipse Foundation, the primary package for all implemented APIs has changed from javax.* to jakarta.*. This will almost certainly require code changes to enable applications to migrate from Tomcat 9 and earlier to Tomcat 10 and later. A migration tool is under development to aid this process.

The notable changes in this release are:

• Revert the switch to using the ServiceLoader mechanism to load the custom URL protocol handlers that Tomcat uses. The original system property based approach has been restored.
• Provide an implementation of the sub-set of JavaBeans support that does not depend on the java.beans package. This for use by Expression Language when the java.desktop module (which is where the java.beans package resides) is not available.
• Restore inline state after async operation in NIO2, to account the fact that unexpected exceptions are sometimes thrown by the implementation. Patch submitted by zhougang.

Full details of these changes, and all the other changes, are available in the Tomcat 11 (alpha) changelog.

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The Apache Tomcat Project is proud to announce the release of version 10.1.7 of Apache Tomcat. This release implements specifications that are part of the Jakarta EE 10 platform.

Applications that run on Tomcat 9 and earlier will not run on Tomcat 10 without changes. Java EE based applications designed for Tomcat 9 and earlier may be placed in the $CATALINA_BASE/webapps-javaee directory and Tomcat will automatically convert them to Jakarta EE and copy them to the webapps directory. This conversion is performed using the Apache Tomcat migration tool for Jakarta EE tool which is also available as a separate download for off-line use.

The notable changes in this release are:

• Correct a regression introduced in the fix for bug 66196 that meant that the HTTP headers and/or request line could get corrupted (one part overwriting another part) within a single request.
• Revert the switch to using the ServiceLoader mechanism to load the custom URL protocol handlers that Tomcat uses. The original system property based approach has been restored.
• Restore inline state after async operation in NIO2, to account the fact that unexpected exceptions are sometimes thrown by the implementation. Patch submitted by zhougang.
• Provide a more appropriate response (501 rather than 400) when rejecting an HTTP request using the CONNECT method.
• Add support for txt: and rnd: rewrite map types from mod_rewrite. Based on a pull request provided by Dimitrios Soumis.

Full details of these changes, and all the other changes, are available in the Tomcat 10.1 changelog.

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The Apache Tomcat Project is proud to announce the release of version 8.5.87 of Apache Tomcat. This release implements specifications that are part of the Java EE 7 platform. The notable changes compared to 8.5.86 include:

• Correct a regression introduced in the fix for bug 66196 that meant that the HTTP headers and/or request line could get corrupted (one part overwriting another part) within a single request.
• Provide a more appropriate response (501 rather than 400) when rejecting an HTTP request using the CONNECT method.
• Add support for txt: and rnd: rewrite map types from mod_rewrite. Based on a pull request provided by Dimitrios Soumis.

Full details of these changes, and all the other changes, are available in the Tomcat 8 changelog.

Please note that Apache Tomcat 8.5.x will reach End-of-life (EOL) on 31 March 2024.

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The Apache Tomcat Project is proud to announce the release of version 9.0.73 of Apache Tomcat. This release implements specifications that are part of the Java EE 8 platform. The notable changes compared to 9.0.72 include:

• Correct a regression introduced in the fix for bug 66196 that meant that the HTTP headers and/or request line could get corrupted (one part overwriting another part) within a single request.
• Provide a more appropriate response (501 rather than 400) when rejecting an HTTP request using the CONNECT method.
• Add support for txt: and rnd: rewrite map types from mod_rewrite. Based on a pull request provided by Dimitrios Soumis.

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 2.0.3 of Tomcat Native. The notable changes compared to 2.0.2 include:

• The windows binaries in this release have been built with OpenSSL 3.0.8

Download | ChangeLog for 2.0.3

The Apache Tomcat Project is proud to announce the release of version 1.2.36 of Tomcat Native. The notable changes since 1.2.35 include:

• Windows binaries built with OpenSSL 1.1.1t.

Download | ChangeLog for 1.2.36

The Apache Tomcat Project is proud to announce the release of 1.0.6 of the Apache Tomcat Migration Tool for Jakarta EE. This release contains a number of bug fixes and improvements compared to version 1.0.5.

The notable changes in this release are:

• Correct regression in handling of javax.annotation package introduced in 1.0.5. PR provided by Danny Thomas.
• Allow parallel use of ClassConverter. PR provided by Danny Thomas.

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

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The Apache Tomcat Project is proud to announce the release of version 1.2.48 of Apache Tomcat Connectors. This version fixes a number of bugs found in previous releases.

Download | ChangeLog for 1.2.48

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.