Seeing any apparent difference in the new boot ROM capabilities? Internet Recovery made an appearance by chance? Or a black boot screen with silver Apple logo to "modernize" the machine somewhat. I know the boot screen is trivial and has no importance, but I do find it interesting they have a team dedicated to keeping these machines alive a little while longer, so I wonder how far they will go? It was quite shocking for them to admit the 2013 was not "the best workstation on the planet" and announce the iMac Pro many months before release. I have always thought it has been very "un-Apple" like to not have a supported, authorized method of recovering the machine from a failed disk, although the majority of us have the installers on USB drives for about every version.