It doesn’t knock anymore. If it does, it means the fuel is very bad. Choose a fuel station you know sells good fuel and all will be well. I’ve tried PSO, Shell, Total, Attock, Hascol, it doesn’t knock.
Before the ECU update, my Turbo used to knock at every speed on any fuel, accelerate a little above 2k rpm and you’ll hear it loud and clear HOWEVER it doesn’t do it anymore. Hence no need to worry.
Heat will kill the Turbo, so slow your roll during the hot summer humid months.