André,

On 5/11/23 14:49, Andr? van der Lugt wrote:
Hi Meltron,

-----Original Message-----
From: Meltron Kendrick <meltronkendr...@gmail.com>
Sent: 11 May, 2023 19:09
To: users@tomcat.apache.org
Subject: Best Practice to Upgrade Apache Tomcat from 9.0.56 to 9.0.74

I have NOT been able to locate clear HOW TO steps for this.

I am currently focused on MINOR upgrades.

I will commence a different thread when I raise the question for MAJOR
upgrades --- say from 9.x to 10.x  -- or 9.x to 11.x

IF someone can point me to a great resource...
That would be tremendously helpful and truly appreciated.

Apache Tomcat home > Documentation has a Migration Guide 
(https://tomcat.apache.org/migration.html), see subsection "For upgrading between 9.0.x 
versions, ..."

Generally speaking, if you prepare your deployment according to RUNNING.txt (see Tomcat 
distribution) sub-section "Advanced Configuration - Multiple Tomcat Instances", 
the patch update can be fairly painless - all it takes is replacing CATALINA_HOME/bin and 
CATALINA_HOME/lib with the contents of the Tomcat update.

I wouldn't even do that. Instead, I would unpack the distro to a new directory and change CATALINA_HOME to point to the new one. Rolling-back is easy.

https://tomcat.apache.org/presentations.html#latest-split-installation

-chris

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