We have a Cisco Asa 5510 and it is running sw version 7.0.6 and ASDM version 5.0.6. I am looking to upgrade it to the newest release of both but read online (on Cisco's website)that upgrades must be done in sequential order and you cannot skip releases. Does this mean I would have to go through the upgrade process to upgrade to 7.0.8 then 7.1.0 then 7.1.1 and so on all the way up to the newest version?
It also says the same thing for the ASDM software.
Also, how much downtime should I expect per software upgrade? Will we have to do any reconfiguring?