Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Krishna_251070's avatar
Krishna_251070
Icon for Nimbostratus rankNimbostratus
8 years ago

Image Upgrade from 11.6.1 to 12.1.2

Hello Experts,   I need to upgrade the image on HA pair LTMs from BIGIP-11.6.1.0.0.317 to BIGIP-12.1.2.0.0.249. My plan is to upgrade the standby device first then do it in the primary device.   ...
application delivery
big-ip
LTM
Samir_Jha_52506's avatar
Samir_Jha_52506
Icon for Noctilucent rankNoctilucent
8 years ago

So far not observed any issue. I will suggest you to go with 

F5 V12.1.2 HF2
, which has latest bug fixed.

Simon_Blakely's avatar
Simon_Blakely
Icon for Employee rankEmployee
8 years ago

And to save some time ...

 

Upload both the 12.1.2 base image and the 12.1.2 HF2 hotfix image to the device. Then select the 12.1.2 HF2 Hotfix for installation - the base image will be automatically installed, then the hotfix applied.

 

Only requires one upgrade operation.