Apple Developer Weekly #240 iOS 26 Beta 5
"iOS Developer+" Rebranded as "13+"
From 13
Sorry, this week's newsletter is a few days late again due to my busy schedule, but it's just in time for beta 5.
Speaking of being busy, I want to share something small with you. I have a "project of projects" written with Claude Code that can read content from other software and writing projects to keep work records.
This project was originally called
meta-project(a meta project, meaning a project of projects), but recently while organizing, I felt this name was too boring. After careful consideration, I renamed it topassion.And the todos in the project, I renamed from
todotospark.In other words, I use this name to remind myself that these are things I'm passionate about doing. I need to protect them.
One more important thing: I've renamed "iOS Developer+" to "13+" to better reflect the actual content. See the announcement articlefor details.
13 on August 7, 2025
🧪Apple Releases
Xcode 26 beta 5 (17A5295f) Note: Starting from beta 5, separate versions for Apple Silicon and Intel, please choose the correct version when downloading
🤖This Week's Major AI Model Updates
It's been a busy week in the AI field with multiple important models being released simultaneously. First, iOS 26 Beta 5 brings more new features to the Foundation Models framework. Apple engineer Erik Hornberger (@mopperson) shared a series of posts. With each beta version, Foundation Models has introduced many changes, making it arguably one of the frameworks Apple is most actively promoting.
OpenAI, long criticized for not being open at all, launched the gpt-oss series open source models, offering 120b and 20b versions, specifically designed to run on high-end laptops (like MacBook Pros with enough memory) and phones. Interested readers should download the models and give them a try.
Anthropic hasn't been idle either, releasing Claude Opus 4.1, further advancing AI coding capabilities. The official recommendation is to start using Opus 4.1 instead of 4.
🕳️Default Actor Isolation: New Problems from Good Intentions──fatbobman
Fatbobman published an in-depth article about Default Actor Isolation in Swift 6.2. A must-read for those who have started diving into Xcode 26 and Swift 6.2.
🚫@isolated(any)──NSHipster
Matt Massicotte introduces the easily overlooked @isolated(any) attribute on NSHipster. Worth exploring for those wanting deeper understanding of Swift actors.
↔️Swift AsyncAlgorithms New Development Goal: Share Feature
AsyncAlgorithms is great, but unfortunately updates infrequently. The new development goal focuses on the Share feature. It appears to address the limitation that AsyncSequence can only be consumed by a single receiver.
⚠️Quinn "The Eskimo!" Important Reminder About Memory Mapping
Apple's Technical Support Engineer Quinn "The Eskimo!" reminds developers on the Swift forums to be extra cautious when using memory mapping on Apple platforms. Memory mapping may be unsafe when target files are stored on volumes that might disappear (like external drives or network volumes).
👥Join iPlayground 2025!
Mandy shares her excitement and participation tips for the upcoming iPlayground 2025. As Taiwan's largest iOS developer conference, iPlayground is not just a venue for technical exchange but an important moment for the developer community to gather.
📺This Week's Developer Video Updates
Apple Developer released a recording from a live presentation in Cupertino "Explore the biggest updates from WWDC25". This approximately 100-minute video is perfect for developers who don't have time to watch all the WWDC content, condensing the key updates from the developer conference. You can also virtually experience Cupertino's Developer Center. As a veteran Apple developer, seeing this "traditional" recording format suddenly brings a nostalgic feeling.
ChaoCode also released two new videos: First is "Add AI Voice Chat Features to Your App with ElevenLabs Swift SDK! - Conversational AI", introducing how to add AI voice chat features to apps. The other is "A Failed Prototype Demo 🥲 - #BuildInPublic #Shipaton 2025", sharing the development process in BuildInPublic format, related to the ongoing RevenueCat Shipaton 2025 event.
I'm also continuing my iPlayground App development livestream recordings, with the latest episode being "iPlayground 2025 App #3 ⏬ Switching to Real SessionData", the fourth video in the playlist, continuing the iPlayground App development progress reported in last week's newsletter.
🚀Major Update: iOS Developer+ Officially Renamed to "13+"
I've renamed iOS Developer+, now called "13+". It might seem like "abandoning" iOS development at first glance, but actually, my writing focus has always been on AI tools, learning methods, and career thinking. The rename is a correction and a fresh start for my personal brand. Welcome to subscribe and share - non-iOS developers are also welcome. Thanks for your support!
➕13+ Recent Content Updates
Here are some recent articles. Welcome to subscribe and support.
🤖You Should Have a Resume Project in Your ChatGPT Many people know resumes need careful preparation, but usually only start organizing when job hunting, forgetting important career highlights. You can actually use ChatGPT or Claude's project features to build a long-term collection system, recording work achievements as they happen, then using AI to help package them into business value and organize output when needed. This is both easy and effective, especially suitable for engineers to convert technical achievements into resume highlights.
🧠I Treat AI as Human to Reduce Cognitive and Learning Burden Treating AI tools as humans can reduce cognitive and learning burden. Sharing how I use intuition and management experience from human interaction to more effectively use AI tools.
↖️Last Issue Highlights
If you've been too busy to read last week's content, here are the highlights:
🤖Major Updates and Issues with Foundation Models in Beta 4 GenerationSchema supports Codable, but with known issues
📺My iOS Live Coding: iPlayground App Development Livestream and Recordings My YouTube livestream development process documentation
🧪iOS 26 beta 4 Officially Released Also the first Public Beta
That's all for this week's Apple Developer Weekly. Feel free to like❤️, comment💬, or reply✉️ to share your thoughts.
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