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The downtime is just the reboot time. &nbsp; &nbsp;The original code should work unless you are jumping like 4 major versions. &nbsp; &nbsp;But there are new supported methods in 8.3 vs previous releases. &nbsp; the previous code will work fine though. 
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The downtime is just the reboot time.    The original code should work unless you are jumping like 4 major versions.    But there are new supported methods in 8.3 vs previous releases.   the previous code will work fine though.

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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? <br />
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It also says the same thing for the ASDM software.<br />
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Also, how much downtime should I expect per software upgrade? Will we have to do any reconfiguring?
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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?

Upgrading Cisco Asa 5510 Software and ASDM

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.