Problem
Does the "Do not use the TLSv1 protocol" option on an API Gateway port affect TLSv1.1 or TLSv1.2?
Resolution
No. That option affects only TLSv1.0. An enhancement was added in API Gateway 7.5.2 that allows you to disable TLSv1.1 or TLSv1.2, as shown on the screen below: