Possibility of jailbreaking PS3 which has all the updates?

Hello,

I have a Model CHEC-2504A which has been fairly regularly updated. I've read up on a few tutorials talking about jailbreaking from version 3.55-3.41 but i'm not aware of on which version it is running now. (unplugged at the moment since not in use)

i've jailbreaked both PS1 & PS2 before but i'm a bit puzzled if it's still possible to jailbreak it with the latest updates or doesn't that matter?

Great site by the way, if I knew this one years ago... :laugh:

Thanks in advance.