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From Mark Thomas <>
Subject [ANN] Apache Tomcat 10.0.0-M9 available
Date Mon, 12 Oct 2020 09:21:30 GMT
The Apache Tomcat team announces the immediate availability of Apache
Tomcat 10.0.0-M9.

Apache Tomcat 10 is an open source software implementation of the
Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language,
Jakarta WebSocket, Jakarta Authentication and Jakarta Annotations

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.

Apache Tomcat 10.0.0-M9 is a milestone release of the 10.0.x
branch and has been made to provide users with early access to the new
features in Apache Tomcat 10.0.x so that they may provide feedback. The
notable changes compared to 10.0.0-M8 include:

- Refactor the handling of closed HTTP/2 streams to reduce the heap
  usage associated with used streams and to retain information for more
  streams in the priority tree.

- Allow using the utility executor for annotation scanning. Patch
  provided by Jatin Kamnani.

- Add a bloom filter to speed up archive lookup and improve deployment
  speed of applications with a large number of JARs. Patch provided by
  Jatin Kamnani.

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


Migration guides from Apache Tomcat 7.0.x, 8.5.x and 9.0.x:


- The Apache Tomcat team

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