iOS Development with Swift 6: Concurrency, Testing and Career Tips – iOS Inside #001

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Yo!
If you’re deep in iOS or just vibin’ with Swift daily — welcome.
This is iOS Inside, your no-BS newsletter made for real devs.

Every week I’ll drop code tips, Swift stuff, Apple updates, and things I wish someone had told me earlier in my career.

Let’s roll:

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1. Wanna go senior? Start thinking like one.

If you’re a mid-level dev knocking out features and writing clean code — nice. But you’re not there yet.
Being a senior is more about how you code than what you code.

Swift 6.0 now yells at you if your concurrency is sketchy.
And yeah, it’s a good thing. It’s time to get cozy with Sendable, actor, and friends.

Here’s a quick example:

actor ChatManager {
    func sendMessage(_ text: String) {
        print("Sending: \(text)")
    }
}

let manager = ChatManager()
Task {
    await manager.sendMessage("Hey!")
}

Actors = safe, async, and no race conditions.
Start using this now — future you (and your team) will thank you.

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2. Swift 6 + Xcode 16 = clean upgrades

Apple finally shipped Swift 6.0 and it’s all about safe concurrency.

• Sendable is now serious business

• You’ll get warnings if your code is doing shady thread stuff

• Diagnostics got smarter

• And yeah, we’ve got a fresh new testing framework

Xcode 16 came along with it — faster builds, better previews, and improved error output.
Honestly? It just feels snappier.
If you're stuck on 15.x… move on.

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3. New tool drop: Swift Testing

Tired of XCTest ceremony?
Say hello to swift-testing.

@Suite
struct MathTests {
    @Test
    func testSum() {
        #expect(1 + 1 == 2)
    }
}

Simple. Swifty. Zero fluff.
It’s already supported in Xcode 16 via SPM.
Try it in a side project, get a feel.

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4. Quick hacks for Xcode speed

Here’s two shortcuts I live by:

• Control + Tab: flip between open files

• Command + Shift + O: search anything — files, symbols, types

Learn these. Use them. Shave minutes off every single day.

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5. Wrap it up

If this helped, send it to that one dev still clinging to Swift 4.2 like it’s 2018.

Next Sunday:
We’re talking modularization, architecture patterns, and SwiftUI tricks to stop your UI from turning into spaghetti.

Until then:
Build. Run. Refactor. Repeat.