dtoverlay changes?

[Listener]

Hello,

Did something change in version 6.x with dtoverlay support? In version 5.x I used the following code placed in /boot/config.txt to affect an orderly shut down via a momentary push button connecting gpio 3 to ground.

Code:

dtoverlay=gpio-shutdown

 
I tried gpio-poweroff as well and various parameters like gpiopin=3 and active_low=1, but no combination works for me with 6.1.0. My button is connected between header pins 5 and 9, gpio3 and ground.

Thanks,

     John