The Apache Tomcat team announces the immediate availability of Apache
Tomcat 9.0.59.

Apache Tomcat 9 is an open source software implementation of the Java
Servlet, JavaServer Pages, Java Unified Expression Language, Java
WebSocket and JASPIC technologies.

Apache Tomcat 9.0.59 is a bugfix and feature release. The notable
changes compared to 9.0.58 include:

- Add support for additional user attributes to TomcatPrincipal and

- Correct a regression in the fix for 65454 that meant that
   minSpareThreads and maxThreads settings were ignored when the
   Connector used an internal executor

- Improve the detection of the Linux duplicate accept bug and reduce
   (hopefully avoid) instances of false positives.

Along with lots of other bug fixes and improvements.

Please refer to the change log for the complete list of changes:


Migration guides from Apache Tomcat 7.x and 8.x:


- The Apache Tomcat team

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