upgrade F5 platform F5-VE-BIGIP- APM from current IOS version 13.1.4 ( Hotfix :13.1.3.4 ) to 15.X

Hi Ali,

As of August 23, 2020, BIG-IP 15.0.x has reached EoL (End of Life).

https://support.f5.com/csp/article/K5903

You can upgrade to v15.1.1.

BIG-IP 15.1.1 Fixes and Known Issues:

https://techdocs.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/related/relnote-supplement-bigip-15-1-1.html