Problem: Half of the time I'm not even familiar enough with the core features of the app, never mind learning the new niche features they just added in the latest version. And since many apps believe in updating a lot and often I see this "What's New" stuff way too frequently.

I imagine frequent users of the app would appreciate knowing what's new more than users that aren't so familiar with the app. I like to know what's new in iOS/macOS, since they update once a year and I'm familiar with it, and they make it brief.