How is the Windows 10 November 2019 Update so… small?

[Windows Central]

Want to know how version 1909 works as a feature update? We've got you covered.
Now that the Windows 10 November 2019 Update is out, I've seen an uptick in questions asking how this update, known as version 1909, is different from previous or future Windows 10 feature updates. Why is the feature update itself so small? Why does it install so fast? And why does Microsoft tout this update as being less risky to install? These are all excellent questions, and we have answers.

Full story from the WindowsCentral blog...