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From Rémy Maucherat <>
Subject [ANN] Apache Tomcat 9.0.50 available
Date Mon, 05 Jul 2021 08:00:36 GMT
The Apache Tomcat team announces the immediate availability of Apache
Tomcat 9.0.50.

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 9.0.50 is a bugfix and feature release. The notable
changes compared to 9.0.48 include:

- Re-work the HTTP/2 overhead protection to reduce the likelihood of
   false positives. Note that the default overheadCountFactor has changed
   from 1 to 10 and that the useful range is now 0 to ~20.

- Update to Eclipse JDT compiler 4.20.

- Fix regressions in JSP compilation in the previous release.

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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