Current deployment uses APM Agent on CA API Gateway to capture and pass minute details of the gateway transactions to DX APM.
Two questions
Gateway 11 and CA Precision API Monitoring (PAPIM) to 3.4
Documentation DX APM agent it applies for any version of Gateway.
Gateway in place upgrade where the APM agent already installed, then you don't need to install it again
New Gateway 11 then it has to be install on Gateway for metrics
PAPIM for gateway 11 link to the DOCS:
YES must be upgrades
Gateway 11.x Users -need to access the link in Saas installation below