The DoD is slightly behind in issuing SHA2 certificates, but many are starting to get on board. The DoD Root Cert CA2 is preinstalled as a trusted cert in both OS X and in iOS. Just switched our sites and apps to SHA2 today and that broke all of our iOS apps as the CA3 root cert is not preinstalled in iOS 9.x. We fixed it by manually adding the root and intermediate certs, but having CA3 installed as a root in the Trust Store would be great.
How can we get the new SHA2 signing CA3 root certificate added to the trusted root certificate list to be preinstalled in both OS X and iOS?