uncheck "Past End of General Support" ![]()
Second, "Peace of mind" is a good recovery plan.
We currently have a couple pods of 7.10.x on the latest UAG which is supported and works well enough. Its certainly a possibility, but I have a hard time believing that they broke 7.11 and 7.12 for several releases when previous version and later works. Its most likely just as it says and is not supported and not tested for functionality when those UAGs came out but 7.10.x esb is still supported. I would deploy one separately and find out.
Another on our team deals with UAG/IDM etc... i have never heard a nice word about UAG 3.9.