Really, that doesn't feel like it should be that hard? As a developer, that sound like a nightmare. Services like these aren't just a piece of software that c

Really, that doesn't feel like it should be that hard? As a developer, that sound like a nightmare. Services like these aren't just a piece of software that can be versioned, it's a system of systems, each one with certain requirements, limits, supported APIs etc. Wrangling all of that is hard enough just to support one user-facing site, much less keeping every version of the site available and working.