Cisco ASA 5505 and I need to upgrade to latest IOS. I upgraded it to 8.4(6) as several documents say is the interim step for anything later. But I cannot find docs that reference the 5505 going further. I see a lot of 5506-x references. I see that htere is also a 8.4(7) as the latest in the 8.x series, but seem to remember putting 5505's at 9.1 and 9.2 in years past, but am not sure. Can anyone tell me the latest version of IOS to put a 3 year old ASA 5505 at?