So overall, the change doesn’t sound too crazy so far, since ArcGIS Server really came with this product list before. The official list will be released soon but you can checkout the draft Esri 10.5 help pages to get an idea of some of the bigger changes. There are lots of enhancements to many of the software components, such as Portal-to-Portal sharing, and new HTTPS defaults. The Enterprise is an interstellar spacecraft powered by warp-drive engines that… oh crap, sorry about that - ArcGIS Enterprise is the entire server stack of Esri software ‘components’ for your organizations’ server environment. Instead let’s focus on what this change means to GIS administrators. So let’s not dwell on what could have been and the latest ArcMarketing terms du jour. This is what Esri is hoping to fix with the new branding (assumption). Don’t be too hard on them, many didn’t like the existing names either: is it ‘ArcGIS for Server’ or ‘ArcGIS Server’? And sooo many different server products, all dependent on each other yet separate products at the same time. Naturally, this means it’s time for a name and licence change. If you haven’t heard, Esri found out we finally understand the current naming conventions and licencing models for their server products.