There are significant changes in the X-ENTP VX.1 release media and some new options that affect which downloads you should get and how you should install them. We strongly encourage you to carefully read the release documentation available on the download page before you make any selections or begin installing the software. This is especially important if you are considering one of the 64-bit native media sets. The information provided in the release documentation can help you make an informed decision about whether the 32-bit or 64-bit media set is the right one for you.
We also have a TechNote that augments some of the information in the release documentation.