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[Updates](https://knowledgebase.metasource.com/tungsten-kofax?hsLang=en#updates) # RPA - Upgrade Tomcat ## How to upgrade Tomcat. Patch Only\* **Applies to Versions:** 9 - 11 **Summary:** These are instructions on how to patch up your **current base version** of Tomcat. Steps we took: \-**MUST DO**: Download 9.0.\* Core zip.  And **UNBLOCK** the .ZIP folder.  And extract to downloads folder. \-**MUST DO**: Backup Server / Backup folder C:\\Program Files\\Apache Software Foundation\\Tomcat 9.0   1\. Verify Environment Variable is similar: JRE\_HOME: Value: *C:\\Program Files\\Java\\jre-1.8*  2\. STOP APACHE TOMCAT SERVICE 2\. STOP ROBOSERVER SERVICE  3\. Copy files from Here *C:\\Users\\username\\downloads\\apache-tomcat-9.0.\**  4\. Paste and Overwrite these files here: *C:\\Program Files\\Apache Software Foundation\\Tomcat 9.0* 5\. Copy from the backup folder of Tomcat 9.0\\conf\\Server.xml and web.xml (For sure, Below are notes I found from Tomcat   There are some other configuration files you may want to copy or adapt from your previous installation. Here is a list of those other files you may have customized in your old installation. conf/catalina.policy conf/catalina.properties conf/context.xml conf/logging.properties conf/tomcat-users.xml conf/jaspic-providers.xml conf/server.xml conf/web.xml bin/setenv.sh (if it exists) If you are unsure, you can use the same technique shown above to check for any differences between your installation and a stock Apache Tomcat configuration file.   6\. CMD As ADMIN \> Tomcat 9.0\\bin\\Catalina.bat 7\. CMD As ADMIN \> Tomcat 9.0\\bin\\Service.bat Remove Tomcat9 7\. CMD As ADMIN \> Tomcat 9.0\\bin\\Service.bat Install 8\. CMD As ADMIN \> Tomcat 9.0\\bin\\Tomcat9w.exe configure to run under service account 8a. Change service Description to the newest version 9.0.\* 9\. Start Tomcat9 Service 10\. Start Robo Server Service. 11\. Change Registry Path to the newest version. ![image](https://knowledgebase.metasource.com/hs-fs/hubfs/undefined-Oct-29-2025-03-16-53-4377-PM.png?width=583&height=94&name=undefined-Oct-29-2025-03-16-53-4377-PM.png) 12\. 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