F5 BIG-IP LTM Upgrade

Hello.

Actually the candidate release depends mostly on the features you would like to cover. If you have everything you need in your major relase, I would choose the last release in that train just to cover security vulnerabilities.

I also recommend you to check better the release notes from the major releases.

I share with you some guidelines

https://devcentral.f5.com/s/articles/big-ip-upgrades-part-1-preparation-27269

https://devcentral.f5.com/s/articles/big-ip-upgrades-part-2-upgrade-behavior-27270

https://devcentral.f5.com/s/articles/big-ip-upgrades-part-3-versions-misconceptions-and-a-back-out-plan-27271

https://devcentral.f5.com/s/articles/big-ip-upgrades-part-4-performing-the-software-installation-27272

And a helpful procedure to perform upgrades using CLI

https://devcentral.f5.com/s/articles/BIG-IP-Upgrade-Procedure-via-CLI-vCMP-Guest-Host

KR,

Dario.