ASA 9.16 EOL

[bobbycameron]

I'm getting conflicting information from an "engineer" I work with about the ASA 9.16.4 being EOL. I cant find an EOL statement online anywhere but he states he spoke to Cisco and they told him 31 Aug 2026.

Any help greatly appreciated

Ray

[Rob Ingram · Accepted solution]

@bobbycameron I cannot find an EOL notification for 9.16 either - https://www.cisco.com/c/en/us/products/security/asa-firepower-services/eos-eol-notice-listing.html

9.17 is EOL, but that doesn't mean 9.16 is EOL. 9.16 is an extra long term release - https://www.cisco.com/c/en/us/products/collateral/security/firewalls/bulletin-c25-743178.html so will be in support to 2026.

[Marvin Rhoads · Accepted solution]

As @Rob Ingram correctly noted, the lifecycle document is the general guidance. Since ASA 9.12 was released in May 2021, we would expect support until mid-2026. The formal EoS announcement for software would not be expected until ~2 years prior to the last date of support.

[johnlloyd_13]

hi marvin,

we're planning to upgrade to cisco secure 3100/4200 FW using ASA code.

i don't see any white paper/doc/link related to ASA OS code/image being retired anytime soon.

can you or if you have inside info that you could share if ASA OS will still be supported/developed in the long term?

we don't plan to run FTD/next-gen FW since our ASA just run NAT, ALC and S2S IPSec VPN which are just enough in our environment.

[Marvin Rhoads]

@johnlloyd_13 this thread was discussing the specific ASA version (9.16) and not ASA software in general. Cisco has stated - and continues to reaffirm - that they plan to continue to develop and support ASA software. It will continue to be offered both on their hardware platforms as well as in virtual appliance and public cloud form factors.

In fact, a new version (9.22) is currently in beta testing and supports 6 different hardware platforms, 5 different hypervisors and 5 different public clouds.

[bobbycameron]

Thanks guys, I really appreciate the feedback. We track the EOL status of OS's for a large organization and wanted to be sure before stating anything!!