I'm not sure that is a good place for this question, but I updated firmware recently to 2.0.5 (from 1 series) - and it looks quite well. but on one cm4 module (slot3 with sata) I receive some kernel messages (I think there were no like messages before the update):

[  130.688639] pcieport 0000:00:00.0: AER: Corrected error received: 0000:00:00.0
[  130.688646] pcieport 0000:00:00.0: AER: can't find device of ID0000
[  130.688655] pcieport 0000:00:00.0: AER: Corrected error received: 0000:00:00.0
[  130.688662] pcieport 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Transmitter ID)
[  130.688666] pcieport 0000:00:00.0:   device [14e4:2711] error status/mask=00001000/00002000
[  130.688672] pcieport 0000:00:00.0:    [12] Timeout               
[  130.689038] pcieport 0000:00:00.0: AER: Corrected error received: 0000:00:00.0            
...
root@tpi-node-03:~# uname -r
6.1.69-v8+
root@tpi-node-03:~# lsb_release -d
Description:    Debian GNU/Linux 11 (bullseye)

any suggestions?