Podkey WWDC 2026

A Podkey summary of Live Activities essentials , from WWDC 2026. Today’s update is all about how Live Activities are spreading out across Apple’s ecosystem, and what developers have to do to make that feel smooth instead of cramped, clipped, or confusing. The big picture is pretty appealing: build an activity once on iPhone, and it can show up on Apple Watch, in the Mac menu bar, in CarPlay, in th...

A Podkey summary of Implement high resolution photo capture , from WWDC 2026. A lot of what makes recent iPhone photos look good has less to do with a single shutter press and more to do with a whole chain of decisions happening underneath it. The big story here is flexibility: the camera can chase low-light sensitivity, fine detail, faster shooting, or smoother app performance, and developers get...

A Podkey summary of Learn CSS Grid Lanes , from WWDC 2026. There’s a genuinely interesting new CSS layout idea on the table right now, and it’s called Grid Lanes. It comes from the Safari team, and the big promise is simple: masonry-style layouts, the brick-wall kind people usually reach for JavaScript to build, done natively in CSS. The details are where it gets useful, because this isn’t just a...

A Podkey summary of Enhance RAW image processing with Core Image , from WWDC 2026. Apple’s RAW pipeline just took a pretty meaningful step up. RAW 9 brings visibly better detail, cleaner color, and smarter noise handling, and a lot of that comes from a new on-device machine learning approach that’s built to work fast enough for real apps, not just lab demos. There’s also a practical side to this s...

A Podkey summary of Extend Reality Composer Pro 3 functionality with Xcode , from WWDC 2026. Today’s thread is all about turning Reality Composer Pro from a nice editor into something much closer to a custom toolbench. The big idea is that developers can plug in their own components, systems, shader controls, animation actions, and even Script Graph nodes, so artists and designers can work directl...

A Podkey summary of Elevate your app’s text experience with TextKit , from WWDC 2026. A lot of text editing on Apple platforms has always come down to a tradeoff: take the convenience of the built-in text views, or build your own thing if you need real control. What’s interesting here is that Apple is opening up more of TextKit’s internal machinery, so developers can keep a standard UITextView or...

A Podkey summary of Discover the Spatial Preview framework , from WWDC 2026. Apple’s Spatial Preview framework is basically a bridge from the Mac to Vision Pro, and it’s aimed at making spatial work feel a lot less clunky. The big idea is simple: a Mac app can push documents or 3D scenes into a headset session without needing separate visionOS app code, and then keep everything in sync live. A lot...

A Podkey summary of Get the most out of Device Hub , from WWDC 2026. Apple’s new Device Hub looks like one of those tools that quietly removes a bunch of daily friction for developers. It pulls physical devices and simulators into one place, gives them the same core toolset, and makes testing things like appearance, location, audio, crash logs, and even app state a lot less scattered. The bigger s...

A Podkey summary of Create robust evaluations for agentic apps , from WWDC 2026. A lot of this comes down to a simple idea: if you're testing AI with a tiny, tidy dataset, you can talk yourself into thinking things work better than they actually do. The big themes here are synthetic data generation, how to judge coverage instead of chasing a magic sample count, and how to evaluate tool-using m...

A Podkey summary of Explore distributed inference and training with MLX , from WWDC 2026. Apple quietly put together something pretty interesting here: a way for multiple Macs to behave much more like a real high-speed compute cluster, using Thunderbolt 5 as the link. The big picture is RDMA over Thunderbolt, JACCL on top of that, and MLX to make it usable for actual inference and fine-tuning. And...

A Podkey summary of Debug and profile agentic app experiences with Instruments , from WWDC 2026. Today’s thread is basically this: building with language models looks simple right up until you need it to be reliable. The big themes are testing outputs that won’t come out the same way twice, figuring out what broke when several models are chained together, and using Apple’s Foundation Models Instru...

A Podkey summary of Discover generated subtitles and subtitle styles , from WWDC 2026. Apple is pushing subtitles in a very practical direction: generated right on the device, while the video is playing, with no server round trip and almost no extra work for app developers. The big idea is simple but useful. You can get live same-language captions from speech, translated subtitles from an existing...

A Podkey summary of Enhance the accessibility of your reading app , from WWDC 2026. This one is all about a very specific corner of app design that ends up making a huge difference in real use: how text behaves with VoiceOver, Speak Screen, and Apple's reading tools. The big theme is pretty simple. If an app treats text like real, navigable text instead of a pile of separate visual elements, p...

A Podkey summary of Design immersive environments for visionOS apps and the spatial web , from WWDC 2026. Today’s story is really about how these visionOS environments stop being pretty backdrops and start feeling like places. The big idea is that realism comes from a stack of deliberate choices: true depth, careful scouting, scene cleanup, motion, lighting, and especially sound, all shaped by a c...

A Podkey summary of Discover new capabilities in the App Intents framework , from WWDC 2026. A bunch of the newest App Intents updates are really about one thing: making apps feel less clunky when they talk to the rest of the system. There’s better sharing for structured data, better suggestions before you even ask, faster handling for big batches of content, and a clearer story for cross-device S...

A Podkey summary of Create web extensions for Safari , from WWDC 2026. Today’s story is really about how Safari extensions fit into Apple’s world without turning into their own weird little island. The big themes are packaging, privacy, and portability: how developers wrap an extension in an app for the App Store, how the same WebExtension code can now travel pretty cleanly across browsers, and ho...

A Podkey summary of Craft clear names for features and labels in your app , from WWDC 2026. Today’s all about naming in product design, and why a good name does a lot more than sound polished in a meeting. Heej lays out a simple framework for judging names, shows where brand personality can help or hurt, and keeps coming back to one big idea: the words inside an app shape how people understand it,...

A Podkey summary of Explore numerical computing in Swift with MLX , from WWDC 2026. Today’s roundup is really about one idea showing up in a bunch of useful ways: MLX Swift lets you write array-based code that stays clean, runs fast, and scales from little experiments to serious GPU work. The big themes are lazy evaluation, automatic differentiation, and a cross-language setup that makes Swift fee...

A Podkey summary of Integrate on-device AI models into your app using Core AI , from WWDC 2026. Today’s story is a really practical look at on-device AI through a language-learning app that can look at objects in your camera, cut them out cleanly, and turn them into vocabulary cards. What makes it interesting is the mix of privacy, speed, and product design choices underneath it: two specialized m...

A Podkey summary of Explore advances in RealityKit , from WWDC 2026. This week’s RealityKit updates feel very hands-on. A lot of it comes down to making scenes look better, sound better, and behave more like they belong in the room you’re actually standing in. There’s better lighting, more flexible navigation, stronger performance tools, richer audio, and a few standout rendering tricks like Gauss...

A Podkey summary of Find and fix performance issues in your Metal games , from WWDC 2026. Today’s story is really about a gap developers have lived with for a while: you can see performance problems while you’re playing, but figuring out exactly why they happened later has been the hard part. Apple’s newer Metal tools are trying to close that gap with long-running trace capture, a command line wor...

A Podkey summary of Integrate MusicKit into your app , from WWDC 2026. Today’s catch-up is all about the practical side of MusicKit: less setup friction, cleaner permission prompts, and better tools for browsing, playing, and selling Apple Music inside an app. A lot of this comes down to smoothing out developer pain points. Tokens can be handled automatically, the music picker is more unified, and...

A Podkey summary of Create high-quality images using Image Playground , from WWDC 2026. Apple’s updated Image Playground setup is basically a big simplification story with a privacy angle running through all of it. The headline is that developers get a much cleaner API, users get stronger built-in privacy protections, and the app can flex from full image generation down to graceful fallback behavi...

A Podkey summary of Discover USDKit and what’s new in OpenUSD , from WWDC 2026. A bunch of Apple’s latest 3D and spatial computing updates really circle around one idea: making USD more usable, more open, and way more practical from creation to delivery. The big themes are a formal OpenUSD spec, better rendering and materials on Apple devices, easier web and Vision Pro experiences, and some very w...

A Podkey summary of Code-along: Add persistence with SwiftData , from WWDC 2026. Today’s story is really about an app growing up a little. The Wishlist app moves off a purely in-memory data source and over to SwiftData, which means trips, goals, activities, and images finally persist instead of disappearing the second the app relaunches. And once that shift happens, a bunch of other things get cle...