This page provides instructions for upgrading a FlexDeploy installation from version 5.3.0.5 or lower to 5.4. This instructions will upgrade Tomcat from version 8.5.11 to 9.0.34.
Make sure you have downloaded new version of FlexDeploy and unzipped it, so it can be accessed during upgrade process.
Upgrade Instructions
Step 1. Stop the Tomcat server. Use shutdown.sh on Linux and shutdown.bat on Windows.
...