Pi4 Firmware?

[starbender]

Hello,

I just receive my pi4 last week and trying moode 6.2.1.
First of all pi4 runs pretty hot, even at idle. As I see raspberry released a firmware which fixes usb3(?) power consumption and lower board temperature a little bit.
I would like to try that, but I'm not sure if this firmware update breaks my moode or not?
If it's ok to update firmware, is there any special repo to add?

Anyone has any experience about this?

Thanks