Claude drafts these delta posts, I edit them. They’re primarily for my own consumption.

Xcode 27.2 beta 2 (27B5028f) landed, so I re-ran the export for the snapshot repo. I skipped 27.2 beta 1, so this is compared with 27.1 beta 1. Two skills changed, swiftui-specialist and swiftui-whats-new-27, one reference file each (full commit), 38 lines added and 2 removed. The other eleven are byte for byte what 27.1 beta 1 shipped, app-resizability included.

swiftui-specialist already said to mark @State properties private, and gains a section explaining why. The macro only defers an initial value like StickerStore() when the getter is private or fileprivate. The expression then runs once and later initialisations of the view reuse the instance. Otherwise it runs every time, which for a reference type means allocating an object only to throw it away. This needs iOS 17 and macOS 14, the releases that introduced @Observable.

swiftui-whats-new-27 has an example that’s meant to fail to compile, since @State stops Swift synthesising the private memberwise init. Its call was self.init(bar: bar, baz), missing its baz: label, so it also failed for an unrelated reason.