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From Mark Thomas <>
Subject Re: A question about the lifecycle of Tomcat
Date Fri, 07 Sep 2012 14:09:18 GMT
Wei Chen <> wrote:

>Hi all,
>Recently I read from that
>Apache Tomcat team will end their support for Apache Tomcat 5.5.x will
>end on 30 September 2012. I wonder if there any timeline for the
>lifecycle for Apache Tomcat?


> How about Apache Tomcat 6.x.x? When is the end for the support?

No plans at the current time. Best guess is that it is at least two years away. There will
be at least 12 months notice of eol.

The biggest driver is the J2EE specification process. A new specification version means a
new major Tomcat release. Generally the latest major Tomcat version (currently 7.0.x) gets
new features, bug fixes and security fixes, the version before (6.0.x) that bug fixes and
security fixes and the version before that (5.5.x) just security fixes.

We are at the transition point where 8.0.x is diverging from 7.0.x so the three supported
versions move from 5.5-7.0 to 6.0-8.0. That said, the transition won't be instantaneous. 8.0
is not ready for a release and New features will continue to be added to 7.0 for a while yet.

Also, all of the above depends on there being volunteers doing the work. This cuts both ways.
If no-one wants to work on 6.0.x as of tomorrow, support for 6.0.x will effectively stop then.
Equally, if someone wants to add a new feature to 5.5.x, they can. Everything above is only
generally true with plenty of exceptions if a committer decides they want to scratch a particular



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