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

Forum Discussion

Lucern's avatar
Lucern
Icon for Nimbostratus rankNimbostratus
Jan 08, 2019

GTM/DNS between point releases?

All,   We're in the process of migrating from a 4000s to a pair of i4600's. The existing 4000s is part of a GTM Sync group which is running 12.1.3.6. I've installed 12.1.3.7 on the i4600 and have ...
application delivery
big-ip
BIG-IP DNS
Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
Jan 11, 2019

There is a very good chance you are not going to run into any problems since this is just a minor code version. I have done similar upgrades in 11.x and 12.x upgrades. However, the difference in code version is short-lived and will exist during the maintenance window. I prefer to keep everything in the same code version and recommend either upgrading the old devices or downgrading the new devices.