A big part of my day, especially as I write less code, is diving into Instruments to optimize performance. To speed things up, I’m adding trace recording + analysis to Antoine van der Lee’s SwiftUI Agent Skill. SwiftUI performance tuning is about to get much easier 👀

Gigs launches tomorrow and we can't wait to get what we've been building into everyone's hands! One of my favorite features? Getting reminders when ticket sales go live so you never miss out. Funnily enough, I got one this morning! Today's your last chance to pre-order 👇

🏆 Every gig tells a story. With our new app Gigs, you'll unlock exclusive achievements as you build your concert history. Your memories deserve more than a ticket stub! Preorder the app now! 🔗 Link in the comments

🎟️ Your gig history deserves better than a spreadsheet. CSV imports are coming to Gigs: bring every concert, every show, every memory with you. Beta is open. Link below 👇

Just added support for importing your Concert Archives data to Gigs! ✨ It runs as a Background Task, so you can leave the page (or even the app) and we’ll keep importing everything.

Did you know you can trigger a GitHub Actions workflow via the GitHub API using a repository_dispatch event? Pair that with the new App Store Connect webhooks and you can react to things like an app release and automatically run tasks in your repo. Automation magic ✨

We don’t want adding concerts to Gigs to feel like admin. That’s why we’re building different ways to quickly find and pre-fill the right event details so you don’t have to type everything manually. Here’s one of them: Event Suggestions 🎟️

📆 Last chance to get your tickets for my workshop on how to improve your SwiftUI App's performance this evening! I'll walk you through real-world performance bottlenecks and show you how you can diagnose and fix them using Instruments! www.eventbrite.com/e/1821715834...

Have you ever wrapped up an instrumented recording session and then thought, “Wait… what did I do first, and when?” Start using the os_log instrument and make your debugging sessions way easier to untangle. 💪 A nice perk? You get this for free when you use Apple’s Unified Logging System.

Sooo happy to see @joshdholtz.com’s IndieDevMonday back! And what a return — with @strasser.bsky.social as the featured dev 🙌 Honored to be mentioned alongside so many talented friends ❤️ indiedevmonday.com

😫 Have you ever tried to diagnose a performance issue with Instruments and found that all symbols were missing? 💡 This happens more often than you think, but it has a very easy fix that not a lot of people know about! #iosdev

Last chance to sign up to my FREE webinar with AWS this evening! You will learn how to: - Launch and provision an EC2 instance - Use it as a self-hosted GitHub Actions Runner - Archive and deploy an iOS Application streamyard.com/watch/WfUTdS...

😩 Slow GitHub runners… constant queue times… and the nightmare of managing your own Macs for CI/CD? 🔥 There’s a better way... join my FREE webinar in partnership with AWS on Monday to learn more! streamyard.com/watch/WfUTdS...

💥 Stop buying Macs for CI/CD you don’t want to maintain! Want faster builds, and lower costs? You can spin up on-demand macOS infrastructure that integrates seamlessly with GitHub Actions. Join my webinar on Monday! streamyard.com/watch/WfUTdS...

🆕 Xcode 26.1.1 is out now! 👀 Seems like this update has a big focus on Instruments bug fixes, especially finally enabling the Processor Trace instruments for iPhone 17 devices! #iosdev developer.apple.com/documentatio...

👀 Have you run out of free minutes on GitHub Actions hosted runners? Or want to look for a faster alternative where you have control over what's installed on the machine? I have teamed up with AWS to bring you this FREE webinar! streamyard.com/watch/WfUTdS...

👀 Have you ever struggled to diagnose and fix a performance issue in your app? Or opened Instruments to understand how your app is performing but didn’t know where to start? This workshop is for you — join me on the 3rd of December! www.eventbrite.com/e/1821715834...

I sent a new issue of the iOS CI Newsletter last night packed with content and news from the community, here's what's inside: 🖥️ Saving thousands of dollars with self-hosted runners 💨 Faster Xcode builds 🚀 New App Store Connect features 🧪 Selective Testing www.ioscinewsletter.com/issues/79

Apple just announced two new improvements to App Store Connect (and soon to Helm 😜) that I am super excited about: - You can now submit additional items for review, even if you have an app version under review. - Offer Codes FINALLY work for In App Purchases developer.apple.com/news/?id=gf6...

Here's another reason to stop using print statements in your code and start using OSLog instead! 💪 You can access os_log events from instruments to give you a better chance at fixing those pesky performance issues.

Back home after an amazing few days at @swiftleeds.co.uk! It somehow gets better every year — from giving a talk to karaoke nights, baby Guinness, and the best gyros in Leeds (twice! 😅). Huge thanks Adam Rush & team for another great year — can’t wait for the next one! ❤️

📆 Friendly reminder that I am running a FREE webinar this evening for iOS CI Newsletter subscribers! Join me to build a CI/CD pipeline that builds, archives and deploys your iOS app! streamyard.com/watch/my73mj...

AI agents running your end-to-end tests, better ways to debug, and a few breaking changes you really don’t want to miss on your GitHub Actions workflows. ✨ That’s what’s inside issue #75, kindly sponsored by @codemagic.io. #iosdev #cicd www.ioscinewsletter.com/issues/75

🚀 Want to get started with CI/CD for your iOS apps but not sure where to begin? I’m hosting a FREE 1-hour webinar this September where I’ll show you how to build, test, and deploy your apps with CI/CD — live! ✨ Kindly sponsored by Marathon Labs 👉 Save your spot: streamyard.com/watch/my73mj...

🔎 A bit more progress last night towards Fosi's iOS 26 release, making it easier to add games through custom filters and search! 👉 Beta: testflight.apple.com/join/3qKCjTXT

Just found out last week that OpenAI has a Prompt Optimizer for its different models, including the new GPT-5 🤯 All you have to do is paste in your prompt and the optimizer will review it and apply best practices automatically. platform.openai.com/chat/edit?mo...

🔥 NEW SPEAKER 🔥 We're super excited to confirm @polpielladev.bsky.social as our next confirmed speaker. Pol is an iOS Dev and Content Creator from Spain, and the maker of popular apps such as Helm for ASC Pol also curates the iOS CI Newsletter and is a Senior Software Engineer at RevenueCat. 🤑

It’s been a while since I last wrote something, so having my first article back featured in iOS Dev Weekly really means a lot ❤️ Sooo motivated to keep writing now 🙏 iosdevweekly.com/issues/719

👀 FREE Webinar happening this evening! Join me to discuss the role of CI/CD and automation in checking AI-generated code, and what tools you can start using in your projects TODAY! streamyard.com/watch/6RCnTU...

📆 New FREE webinar for iOS CI Newsletter subscribers! Join me on Monday as I discuss the importance of solid CI/CD in the era of AI coding and give you a few example workflows you can add to your projects right away! streamyard.com/watch/6RCnTU...

Xcode 26 Beta 4 adds support for opening files in external editors like Cursor! The option will show if the file type is configured to be opened by an editor other than Xcode by default. developer.apple.com/documentatio...

👀 Xcode 26 Beta 4 adds a super handy “Show View Hierarchy” button in the SwiftUI instrument! Now you can see view updates in the context of their view hierarchy and know exactly where things happened. developer.apple.com/documentatio...

Not sure if I am going to be disappointed, but as soon as I read this I went to download the new beta 😅 Fixed: Xcode projects with packages might not build correctly after project reloading. (155537249) developer.apple.com/documentatio...

Finding the reason why this prompt was showing for Helm was incredibly tricky and involved digging into third-party libraries' code. If you want to get an insight into my debugging process, read my latest article: www.polpiella.dev/how-i-fix-bu...

I know it has been a while, but I have finally written a blog post again! ✍️ This time I share how I debug real-world issues in my apps — from invisible crashes to unexpected system prompts — and the tools that I use. www.polpiella.dev/how-i-fix-bu...

📬 New issue of the iOS CI Newsletter drops tonight! I’m diving into AI-assisted development and why solid tests + CI/CD matter more than ever. Subscribe to catch it: www.ioscinewsletter.com 🚀

Friendly reminder that the LocalizedError protocol has more than just `errorDescription`. You can provide more context such as how the user might recover from the failure, which can come in super handy!

🎨 Xcode 26 Beta 3 now adds support for setting Icon Composer icons as alternate iOS icons! developer.apple.com/documentatio...

💨 One of my favorite patterns for syncing data with a backend: Diff what’s changed → execute the necessary requests in parallel. Fast, clean, doesn't make unnecessary calls and is easy to maintain.

Filing Apple Feedback isn't a waste of time. Eric Dorphy has submitted over 1,000 reports, and his experience shows small actions really add up, even if you don't always see an immediate result! www.ioscinewsletter.com/issues/71

Ever feel like your Apple feedback goes into a void? 😩 This issue features an engineer who’s filed 1,000+ reports — and explains why your feedback does matter. Plus great reads from many others! 🫶 Sponsored by @codemagic.io www.ioscinewsletter.com/issues/71

Spotted this local network alert in @helm-app.bsky.social — despite not scanning the network at all 🫠 After some digging, the culprit was using ProcessInfo() to grab system info for feedback purposes. Might be worth checking usages of ProcessInfo in your app too!

📬 I'm sending a new issue of the iOS CI Newsletter this evening and I will be sharing my thoughts on Apple feedback along with important insights on why you should continue filing feedback! 👀 Subscribe now to read the full discussion www.ioscinewsletter.com

Xcode 26 can use the AI model of your choice to document your code! I still had to tweak the results a fair amount, but I guess different models might be produce better results.

This is pretty neat! In Xcode 26, you can now generate comments for String Catalog keys using Apple Intelligence and change the key's name in the code + catalog within the refactor options

Being able to chat with a tab while giving context from other tabs you have open is such a 🔥 feature for a browser...

Foundation Models won’t always be available to every user — maybe their device or locale isn’t supported, or the model hasn’t finished downloading. Luckily, SystemLanguageModel has handy properties to check if it’s supported and ready — and why it might not be so you can handle it gracefully.

Are you looking for some inspiration on what WWDC sessions to watch and don't know where to start? Check out my favorite sessions in the Developer Tools space in the latest issue of my newsletter! 🌟 This issue was kindly sponsored by Appcircle www.ioscinewsletter.com/issues/69

Best way to kick off the last year of my 20s! ❤️🎂

In Xcode 26, the new SwiftUI instrument template can NOT be used on the simulator. Maybe a bit of a hot take, but I like this and think it's a great idea! You should run instruments on device regardless to get the most accurate results.