Adding a PC6248P to a existing production stack

Hello,

I haven't worked with there Dell Power Connect switches in a while so figured I'd ask a couple of questions here.

Currently have 3 stack members

All are PC6224P models.

I have a PC6248P unit which has a blank config on. It has the stacking module already inserted into the switch chassi and ready to go. I also have the stacking cable too.

1st question : Do I need to configure this PC6248P units configuration to match what's on the other 3 stack members or can I insert it with the black config so it can pick up the config from the stack master? I have no problem setting up the config manually but I figured I would ask here first.

2nd question :  firmware revision of 3.3.10.3 is what is on the 3 stack members . Should I be at the same firmware version on the PC6248P unit to avoid any weird problems?

3rd any other steps I should be doing here to get this to work correctly?

Thanks much!

Jose