Please suggest BIG IP F5 (LTM & APM) for ISO upgrade on latest version.Model:- BIG-IP 2200,Version:- 11.6.0

Choosing the correct version to upgrade to can be quite difficult. This is because it is dependent if you are looking into adding features only available in the major version (11.x, 12.x, 13.x etc). If you are only upgrading for security and stability reasons, you could stay within the same major version.

However, since you are running 11.x you should consider jumping to 12.x or 13.x. 12.x has been out for quite a long time now and is considered to be really stable. 13.x has matured as well. You can upgrade to these versions straight from 11.x.

The official recommendation from F5 is to upgrade to the latest long-term stability release. And these are:

• 14.0.x
• 13.1.x
• 12.1.x
• 11.6.x
• 11.5.x

Please refer to the following link:

K5903: BIG-IP software support policy

So in your case it would be one of these:

• 11.6.3.2
• 12.1.3.6
• 13.1.1

To learn more about upgrading your BIG-IP I suggest you check out this series on DevCentral

BIG-IP Upgrades Part 1 - Preparation

BIG-IP Upgrades Part 2 - Upgrade Behavior

BIG-IP Upgrades Part 3 - Versions, Misconceptions and a Back-Out Plan

BIG-IP Upgrades Part 4 - Performing the Software Installation

Please Note that choosing the correct version will be your own decision and I cannot take responsibility if something happens after the upgrade. You might introduce a bug which affects your setup and thus, you need to carefully review your setup against the Known Issus of the version you are choosing.