Issue 760

24^th July 2026

Written by Konstantinos Nikoloutsos

Comment

Hello, iOS dev weekly subscribers 👋

I have a habit of opening a project to make one small change and ending up thinking about the architecture around it. Sometimes that’s useful. Sometimes it means the small change is no longer small. That instinct is also why developer experience ends up as top priority for me. Good architecture and good tooling have something in common: when they work, it’s hard to notice them. When they don’t, everyone feels the friction.

Over the last few issues, you’ve met the new members of the editorial team: Alex Ozun, Andyy Hope, and Juan Marin. That makes me the last one to introduce myself. With that, our new editorial team is complete.

Hello, I’m Konstantinos Nikoloutsos, a Lead iOS Engineer based in Greece. The perspective I hope to bring to the newsletter is related to architecture, performance, and the tools that make our everyday work a little easier.

I hope you’re already in a summer mood or at least compiling from somewhere with decent air conditioning. Enjoy this week’s issue! ☀️

– Konstantinos Nikoloutsos

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News

Claude Code Desktop can now build, launch, and test your app in an iOS Simulator pane right beside the conversation. You can watch Claude tap through a flow, take control of the same device yourself, or give parallel sessions their own simulators…all without letting computer use take over your screen. The feature is in public beta on macOS for Pro, Max, and Team plans.

Code

Offline-first apps are great until it’s time to sync with a remote server. I remember wrestling with exactly this while working at Blueground, a real estate company with offline-first apps. Mohammad Azam shows how iOS 27’s new HistoryObserver can power a one way synchronization pipeline without scattering sync logic throughout the app. It isn’t a complete bidirectional sync engine, but it’s a solid foundation for building one.

We’ve all stared at a SwiftUI animation and wondered why it isn’t behaving as expected. geometryGroup(), compositingGroup(), and drawingGroup() are also easy APIs to confuse, so Natalia Panferova gives us a clear mental model for what each one actually does, backed by practical visual examples.

Tired of observing scroll views and calculating offsets by hand? iOS 27+ new UIBarMinimization handles the tedious part for you. Anton Gubarenko explains how to control when the navigation bar minimizes, when it returns, and whether the safe area follows the transition, in both UIKit and SwiftUI.

Videos

Going for a walk alone or with company 🐕? This is a good one for the headphones. Staff iOS engineers Bogdan Poplauschi and Artem Mirzabekian talk about performance, SwiftUI, best practices, and the architectural problems that emerge in large-scale projects.

Yes, the new Delete Derived Data button in Xcode suprised me, but it wasn’t the only thing. Device Hub gives us a clearer look at where Apple wants development to go, and Instruments keeps getting better at helping us diagnose performance problems. Xcode 27 is quickly becoming one of my favorite releases.

Tools

Anthropic has added a new way to create a skill: record your screen and talk through a task as you complete it, and Claude turns the demonstration into a reusable workflow. It is available in the Claude desktop app for Pro, Max, and Team plans.

Bruno Rocha of SwiftRocks shares a system prompt designed to remove fake human mannerisms from AI responses and make them more direct. It has two goals: favour conciseness over simulated human behaviour, and encourage the model to describe what it actually does. For example, saying “the algorithm predicted” instead of “I think”.

And finally...

TestFlight 4.3 finally adds search for those of us juggling more beta apps than we can remember. You’ll find it along the bottom on iPhone and at the top of the sidebar on Mac. It’s a small addition, but a long-overdue one for frequent beta testers.