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

Forum Discussion

samer_k_345725's avatar
samer_k_345725
Icon for Nimbostratus rankNimbostratus
7 years ago

Need your help in this upgrade.

Hi,   i want to upgrade from 11.6.2 HF1 to 11.6.3.3. I have 2 physical appliances and each one has 2 VMs. so in total i have 6 upgrades to perform. my question here, Is there any order i should fo...
big-ip
security
Niels_van_Sluis's avatar
Niels_van_Sluis
Icon for MVP rankMVP
7 years ago

Your question (and more) is answered in this article:

 

https://support.f5.com/csp/article/K15930

 

Q: Which should I upgrade first, the guests or the hypervisor host?

 

A: If the host is not at an I/O bug mitigated code level (e.g. 11.2.1 HF3+, 11.3.0 HF1+, 11.4.0 and newer) then you should upgrade the host first. Ensure that the host upgrade finishes, boots completely, and the guests start without issues. If the host is at or above those code levels, then you can upgrade either the guest or the host first.