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

Forum Discussion

Subrun's avatar
Subrun
Icon for Cirrostratus rankCirrostratus
Dec 10, 2019

Code Upgrade F5 HA

Regards to F5 Code Upgrade can you help with following queries ::   For a HA F5 Platform ( Virtual ) after we do the code upgrade of Standby node 1st then to do code upgrade at Active Node , nee...
application delivery
big-ip
LTM
Enes_Afsin_Al's avatar
Enes_Afsin_Al
Icon for MVP rankMVP
Dec 10, 2019

Hi Subrun,

When nodes are running different versions, you can change role of standby node to active.

For license verification, the BIG-IP and Enterprise Manager systems verify the license check date in the software against the service check date in the license file. If service check date older than license check date, you must reactivate licenses in both nodes.

The license reactivation process may reload the configuration and temporarily interrupt traffic processing.

grep "Service check date" bigip.license

K7727: https://support.f5.com/csp/article/K7727