CA Mainframe Application Tuner v12
This version of the product is compatible with IBM z/OS 2.3.
Note: For compatibility information about earlier versions, see the z/OS Compatibility Matrix.
The CA MAT GUI server is compatible with Tomcat server version 8.5 and above.
Note: Users of Tomcat version 8.5.35 need to make additional changes to their CA MAT installation. See here for more information.