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From Konstantin Kolinko <>
Subject Re: Tomcat upgradation from 5.5.20 to 5.5.34
Date Wed, 18 Jan 2012 07:15:07 GMT
2012/1/16 Deepak Mishra <>:
> Dear Sir/Ma'am,
> We are planning to upgrade tomcat from 5.5.20 to 5.5.34. As I have
> never done this up-gradation was wondering if we can directly upgrade
> from 5.5.20 to 5.5.34 or we need to go step by step. Also can you
> please provide me the link to download the patch, mentioning the
> specific s/w to be downloaded. We are using Windows 2003 OS.

It depends on how it is installed.

In general:
1. Install the new one (5.5.35, but better 6.x or 7.x)
2. Configure
3. Test
4. Switch to using the new one and uninstall the old.

If you were using separate CATALINA_HOME and CATALINA_BASE the upgrade
(between point releases) were easier. In short it were:
1. Review configuration changes between released Tomcat versions
2. Delete everything from work directory (so that JSPs are properly recompiled)
3. Reconfigure launcher to use different version

> Looking forward for your help!!!
> Many thanks in advance.

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