For a comparison, here is the Press Release for Snow Leopard (https://www.apple.com/ca/newsroom/2009/06/08Apple-Unveils-Ma... here is an excerpt from the text
> For the first time, system applications including Finder, Mail, iCal®, iChat® and Safari are 64-bit and Snow Leopard’s support for 64-bit processors makes use of large amounts of RAM, increases performance, and improves security while remaining compatible with 32-bit applications. Grand Central Dispatch (GCD) provides a revolutionary new way for software to take advantage of multicore processors. GCD is integrated throughout Snow Leopard, from new system-wide APIs to high-level frameworks and programming language extensions, improving responsiveness across the system. OpenCL, a C-based open standard, allows developers to tap the incredible power of the graphics processing unit for tasks that go beyond graphics.
Simple, useful information. Information and features that matters to software developers.
Instead in this new macOS we got: Safari, Messages and Maps. Apps that are not that much relevant (since people are too hooked in Firefox/Chrome, Fb/Ig, and Google Maps). If Apple wants to gain marketshare in these areas, that's fine. But they are pushing them to their base as a macOS upgrade. Huh.
The only thing related to developers is XCode "improvements". I guess the message is pretty clear now: The macOS is now only good to develop iOS apps and maybe do graphics/audio/video. If you are a web/sys developer it might be a good idea to start looking for something else.