ASA 5510 image Upgradation

[jm.virtual01]

I am using Cisco ASA 5510 and the running version is 9.1(7)13. It has HA pair, Active- Standby.

I need to upgrade it with 9.1(7)20 because of the bug.

Can some one let me know the procedure for the upgradation from 9.1(7)13 to 9.1(7)20 with zero down time ?

[Tim Glen]

Please see this link.

https://www.cisco.com/c/en/us/td/docs/security/asa/upgrade/asa-upgrade/asa-appliance-asav.html#concept_F0701C3A86854801958757CEF1E4D999

Please rate if helpful.

Tim