@RamaE989 Tomcat version 9.0.99 is not officially listed as a supported application server for Pega Infinity 24.1.1 as per the latest Pega Platform Support Guide. Pega typically certifies and supports specific versions of Tomcat, and even minor version upgrades may introduce compatibility risks if not tested by Pega. Since you are currently using Tomcat 9.0.98 and it is working fine, it is safer to stay on this version unless you have a critical need to upgrade. If you still wish to use 9.0.99, it is recommended to thoroughly test it in a lower environment with your Pega application to ensure there are no runtime issues. You may also reach out to Pega Support as well. Please let me know if you need any more info. Thanks