As the title states, I am observing my macros that read from disk to no longer work as expected on Linux using the 6.4.0 toolchain. However, they do work as expected if I inline the macro and when expanding it. Is this change documented somewhere or is it a bug with the new build system? I know this behavior isn't officially supported, but it has worked with toolchains before 6.4.0.

Hi System community! I'd like to pitch a series of proposals for Windows-native file system API in System, built on the Win32 base API and HANDLE rather than the C runtime's POSIX compatibility layer that backs FileDescriptor. This series aims to bring System's Windows support up to par with its POSIX counterpart, and it begins by introducing a Win32 namespace to hold these APIs and a Win32.Error type for them to throw. The full series of proposals is available and tracked in this draft PR: ...

This pitch proposes adding resource usage reporting to swift-subprocess: the CPU time and peak memory of every child process it runs. Subprocess has to provide this itself, because user code cannot obtain it through today's API surface. Author: @jakepetroules Implementation: swiftlang/swift-subprocess#226 Introduction ExecutionResult currently tells you how a subprocess ended, through terminationStatus. This pitch adds a ResourceUsage value with the child's user CPU time, system CPU time, and...

Hello, Swift community! The review of SE-0550: @noSanitize attribute for functions begins now and runs through September 30th, 2026. Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to me as the review manager by DM. When contacting the review manager directly, please put "SE-0550" in the subject line. What goes into a review? The goal of the review process is t...

Hi all, The review of SE-0554: Deployment target conditional compilation beings now and runs through October 12, 2026. Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to the review manager via the forum messaging feature. When contacting the review manager directly, please keep the proposal link at the top of the message. Trying it out Toolchains with a prototy...

We give developers powerful APIs to build incredible capabilities into their apps for Apple products, backed by a set of controls designed to protect users’ private data. Full Disk Access largely sidesteps these controls in order to allow backup apps to function properly on the Mac. Some developers are using Full Disk Access in ways that could put users at risk, exposing everything on their systems—including files, mail, messages, and even browsing history—without users’ full knowledge and understanding. For communication apps, this can also compromise the privacy of the people users are communicating with.Going forward, we will introduce additional controls to ensure that users who genuinely wish to grant an app this extraordinary level of access can only do so with very explicit user action. Addressing this is critical. As AI agents become increasingly capable and autonomous, the risks associated with this level of access will grow substantially. We are committed to ensuring users cl

A SwiftNIO parser migration kept HTTP working but silently lost an old resource limit, years before the missing invariant returned as a security issue.

A source-level look at how Swift Collections implements Deque with circular storage, copy-on-write value semantics, and familiar integer indexing.

Changes to iOS, iPadOS, Safari, and the App Store that impact developers’ apps in the EU to comply with the Digital Markets Act (DMA).

Changes to iOS, iPadOS, Safari, and the App Store that impact developers’ apps in the EU to comply with the Digital Markets Act (DMA).

Effective, October 1, 2026, Apple will apply a set of unified business terms to apps that developers distribute in the European Union.

BRUSSELS: The Coalition for App Fairness, alongside 17 other organisations representing app developers, associations, digital businesses, news media publishers, consumer organisations and civil society groups, has published a joint letter raising serious concerns over Apple's new business terms for

There continues to be a need for Swift code to directly use low level C interfaces provided by the operating system platform. These are exposed by the modules in stdlib/public/Platform including Glibc, CRT, WASILibc, Android, Musl, as well as Darwin in Apple SDKs. The fact that they all have different names requires cross platform code to start with an ever growing and tedious to maintain chain of #if os(...) and #if canImport(...). #if canImport(Darwin) import Darwin #elseif canImport(Glibc) i...

Use Swift tuple patterns to take tuples apart, ignore values you do not need, and match several values at once.

The Networking Workgroup meets again on Monday, September 28, 2026, and everyone is welcome. Logistics When: Monday, September 28, 2026, 8:30–9:30 AM PDT (see this time in your local timezone) Where: WebEx Draft agenda Welcome and recap of action items from the last meeting (5 min) Update: swift-networking-types repository and evolution process draft (5 min) Repository setup Currency types: IP Addresses and Ports (requirements thread) Evolution process draft, mirroring the Swift evolution p...

Local, private voice dictation for macOS. Contribute to human37/open-wispr development by creating an account on GitHub.

I've come across some behavior in default @MainActor isolation targets that I can't explain. Consider the following protocol defined in a @MainActor module, and an actor that conforms to the protocol: // Default main actor isolation module protocol P { func perform() async } actor A: P { func perform() async {} } I was surprised this compiled. It seems that P is effectively @MainActor P, and so an arbitrary actor shouldn't be allowed to conform. And if I explicitly make P into @MainActor, ...

A source-level look at how GRDB turns SQLite query regions and transaction events into live application state.

Hello, Swift community! The review of SE-0552: Rounding of Float.pi begins now and runs through October 6, 2026. Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to me as the review manager by email or DM. When contacting the review manager directly, please put "SE-0552" in the subject line. What goes into a review? The goal of the review process is to improve t...

Swift tuples give a few related values a useful local shape without forcing every temporary relationship into a new named type.

Hello, Swift community! The review of SE-0549: Package Manager HTTP Proxy Configuration begins now and runs through September 28, 2026. Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to me as the review manager by email or DM. When contacting the review manager directly, please put "SE-0549" in the subject line. What goes into a review? The goal of the review ...

Hi everyone. The review of SE-0553: Task Identity begins now and runs through October 7th, 2026. Reviews are an important part of the Swift evolution process. All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to me as the review manager by DM. When contacting the review manager directly, please put "SE-0553" in the subject line. What goes into a review? The goal of the review process is to improve the proposal under review t...

A source-level look at how swift-dependencies scopes dependency values with TaskLocal state, makes overrides testable, and integrates the same model with SwiftUI.

Learn about important changes to SwiftUI.

Build privacy-first AI agents with the Google Antigravity SDK. Now supporting offline, local workflows via LiteRT, Gemma 4 26B, and hybrid orchestration.

How we fully migrated github.com away from CSS-in-JS.

Expose REST APIs to AI agents instantly. Google Cloud API Gateway now acts as a native MCP server via OpenAPI 3 annotations, requiring zero new infrastructure.

A source-level look at how swift-snapshot-testing separates value transformation from diffing, and why that makes snapshot strategies reusable far beyond screenshots.

A source-level look at how swift-http-types models HTTP messages, preserves protocol semantics, and bridges the same types into Foundation.