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 9.0.36 of Apache Tomcat. The notable changes compared to 9.0.35 include:

• Add support for ALPN on recent OpenJDK 8 releases.
• Add support for the CATALINA_OUT_CMD environment variable that defines a command to which captured stdout and stderr will be redirected. For use with, for example, rotatelogs. Patch provided by Harald Dunkel.
• Be more flexible with respect to the ordering of groups, roles and users in the tomcat-users.xml file

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 8.5.56 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 8.5.55 include:

• Add support for ALPN on recent OpenJDK 8 releases.
• Add support for the CATALINA_OUT_CMD environment variable that defines a command to which captured stdout and stderr will be redirected. For use with, for example, rotatelogs. Patch provided by Harald Dunkel.
• Be more flexible with respect to the ordering of groups, roles and users in the tomcat-users.xml file.

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 10.0.0-M6 of Apache Tomcat. This release is a milestone release and is targeted at Jakarta EE 9.

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:

• Add support for ALPN on recent OpenJDK 8 releases.
• Add support for the CATALINA_OUT_CMD environment variable that defines a command to which captured stdout and stderr will be redirected. For use with, for example, rotatelogs. Patch provided by Harald Dunkel.
• Be more flexible with respect to the ordering of groups, roles and users in the tomcat-users.xml file

Full details of these changes, and all the other changes, are available in the Tomcat 10 (alpha) changelog.

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The Apache Tomcat Project is proud to announce the release of version 7.0.104 of Apache Tomcat. This release contains a number of bug fixes and improvements compared to version 7.0.103.

• Add support for default values when using ${...} property replacement in configuration files. Based on a pull request provided by Bernd Bohmann.
• When configuring an HTTP Connector, warn if the encoding specified for URIEncoding is not a superset of US-ASCII as required by RFC 7230.
• Replace the system property org.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH with the Connector attribute encodedSolidusHandling that adds an additional option to pass the %2f sequence through to the application without decoding it in addition to rejecting such sequences and decoding such sequences.
• Change default value separator for property replacement to ":-" due to possible conflicts. The syntax is now "${name:-default}".
• Update the packaged version of the Tomcat Native Library to 1.2.24.

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

Note: End of life date for Apache Tomcat 7.0.x is announced. Read more...

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The Apache Tomcat Project is proud to announce the release of version 1.2.24 of Tomcat Native. The notable changes since 1.2.23 include:

• Various improvements to the build process
• Update Windows binaries to OpenSSL 1.1.1g.

Download | ChangeLog for 1.2.24

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.