What is the Latest and Most stable OS for ASA 5525-X?

[Jangchup]

Hi,

Working on upgrading VPN (L2L & AnyConnect) firewall but not sure about what OS to upgrade from existing 9.8.(2).

I see 9.8.(4) Interim Gold on cisco download page but reviews are not great. Any recommendation is highly appreciated.

Thank You,

Jangchup

[Marvin Rhoads · Accepted solution]

ASA release 9.8(4)10 is the latest and Cisco-recommended interim build. There were some bugs in the earlier builds that have since been remedied.

Specifically:

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp67392/?rfs=iqvred

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp78232

Although Cisco hasn't given it the "gold star" yet, I've had good experience with 9.10(1). Interim build 30 is the latest there and the 9.10(1) train very stable in my experience:

https://software.cisco.com/download/home/284143129/type/280775065/release/9.10.1%20Interim

[Jangchup]

Thanks, Marvin..