Previously, the Mac version of my app was built with Mac Catalyst. However, because using the menu bar was inconvenient, I started migrating the Mac version to a native Mac build.
Later, I found that starting around macOS 26.4.1, the menu bar that used to appear with my original SwiftUI implementation suddenly stopped showing. As a result, I had to switch back and use an AppKit bridge instead.
In addition, I noticed that many visual elements look very strange when built with Mac Catalyst, so I have to adjust each page one by one. I would like to know whether there is a guide for migrating from Mac Catalyst to native Mac, especially regarding style adaptation, so that I can follow the guide and make the necessary changes systematically.
Finally, since one of SwiftUI’s advantages is multi-platform deployment, why can’t these styling issues be adapted automatically?
Do you have a feedback for the change in menu bar behavior that you observed in 26.4.1? We'd love to look into that.
Similarly, can you share more details about what you mean by "style adaptation". In general I'd recommend the HIG to understand what a native macOS app should look like, but there also could be specifics for the exact components you are using.
