swift-org-blog-2026-05-15

Title: Swift.org

URL Source: http://swift.org/blog

Markdown Content:

Latest Swift News

Language

Swift 6.3 Released March 24, 2026 Swift is designed to be the language you reach for at every layer of the software stack. Whether you’re building embedded firmware, internet-scale services, or full-featured mobile apps, Swift delivers strong safety guarantees, performance control when you need it, and expressive language features and APIs. Read more

• Community

Announcing the Windows Workgroup January 26, 2026

We are excited to announce the creation of the Windows workgroup!

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• Developer Tools

Expanding Swift's IDE Support April 8, 2026

You can now write Swift in a broader range of popular IDEs, including Cursor, VSCodium, AWS’s Kiro, and Google’s Antigravity. By leveraging VS Code extension compatibility, these editors tap directly into the Open VSX Registry, where the official Swift extension is now live.

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• Adopters

Swift at scale: building the TelemetryDeck analytics service March 6, 2026

TelemetryDeck is an app analytics service specifically for developers, designed to manage usage analytics that are anonymized, privacy-focused, and really easy to use. TelemetryDeck is managing the data of over 16 million people every month, helping thousands of app publishers improve their products, and we’re doing it all with a Swift-based infrastructure.

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• Digest

What's new in Swift: April 2026 Edition May 1, 2026

Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community.

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What's new in Swift: April 2026 Edition May 1, 2026 Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community. Digest### Expanding Swift's IDE Support April 8, 2026 You can now write Swift in a broader range of popular IDEs, including Cursor, VSCodium, AWS’s Kiro, and Google’s Antigravity. By leveraging VS Code extension compatibility, these editors tap directly into the Open VSX Registry, where the official Swift extension is now live. Developer Tools### What's new in Swift: March 2026 Edition March 31, 2026 Welcome to “What’s new in Swift,” a curated digest of releases, videos, and discussions in the Swift project and community. Digest### Swift 6.3 Released March 24, 2026 Swift is designed to be the language you reach for at every layer of the software stack. Whether you’re building embedded firmware, internet-scale services, or full-featured mobile apps, Swift delivers strong safety guarantees, performance control when you need it, and expressive language features and APIs. Language### Swift at scale: building the TelemetryDeck analytics service March 6, 2026 TelemetryDeck is an app analytics service specifically for developers, designed to manage usage analytics that are anonymized, privacy-focused, and really easy to use. TelemetryDeck is managing the data of over 16 million people every month, helping thousands of app publishers improve their products, and we’re doing it all with a Swift-based infrastructure. Adopters### What's new in Swift: February 2026 Edition March 2, 2026 Welcome to this edition of “What’s New in Swift,” where we share interesting projects and updates in the Swift community that deserve visibility to a broader audience. Digest### Announcing Swift System Metrics 1.0: Process-Level Monitoring February 20, 2026 We are excited to announce the 1.0 release of Swift System Metrics, a Swift package that collects process-level system metrics like CPU utilization time and memory usage. Swift System Metrics runs on both Linux and macOS, providing a common API across platforms. Developer Tools### What's new in Swift: January 2026 Edition January 30, 2026 A Reddit thread earlier this month asked about building web apps with Swift. For this edition of “What’s new in Swift,” we invited a developer to share their experience: Digest### Announcing the Windows Workgroup January 26, 2026 We are excited to announce the creation of the Windows workgroup! Community### Improving the usability of C libraries in Swift January 22, 2026 There are many interesting, useful, and fun C libraries in the software ecosystem. While one could go and rewrite these libraries in Swift, usually there is no need, because Swift provides direct interoperability with C. With a little setup, you can directly use existing C libraries from your Swift code. Language### What's new in Swift: December 2025 Edition December 19, 2025 Welcome to the latest digest of news from the Swift project. Digest### Exploring the Swift SDK for Android December 18, 2025 Since the announcement of the preview Swift SDK for Android,the Android workgroup has seen a lot of interest in how it works and what’s next.Please read on for some answers to common questions about the technology and itsfuture, and try out the new Swift 6.3 SDK nightly previews. Developer Tools### Swift Configuration 1.0 released December 11, 2025 Every application has configuration: in environment variables, configuration files, values from remote services, command-line flags, or repositories for stored secrets like API keys. But until now, Swift developers have had to wire up each source individually, with scattered parsing logic and application code that is tightly coupled to specific configuration providers. Developer Tools### Embedded Swift Improvements Coming in Swift 6.3 November 17, 2025 Embedded Swift is a subset of Swift that’s designed for low resource usage, making it capable of running on constrained environments like microcontrollers. Using a special compilation mode, Embedded Swift produces significantly smaller binaries than regular Swift. While a subset of the full language, the vast majority of the Swift language works exactly the same in Embedded Swift. Additional information is described in the Embedded Swift vision document. Language### GSoC 2025 Showcase: Improved Console Output for Swift Testing November 14, 2025 The Swift community participated in Google Summer of Code 2025, and we’ve recently been showcasing all of the projects and work accomplished here on the Swift blog. You can learn more by following these convenient links: Community### GSoC 2025 Showcase: Improved Code completion for Swift November 12, 2025 Our blog post series showcasing the Swift community’s participation in Google Summer of Code 2025 continues with our third update. Learn more about the projects and work accomplished: Community### Introducing Temporal Swift SDK: Building durable and reliable workflows November 10, 2025 The Temporal Swift SDK is now available as an open source project. Developer Tools### GSoC 2025 Showcase: Extending Swift-Java Interoperability November 7, 2025 This is the second post in our series showcasing the Swift community’s participation in Google Summer of Code 2025. Learn more about the projects and work accomplished: Community### GSoC 2025 Showcase: Swiftly support in VS Code November 5, 2025 Another successful year of Swift participation in Google Summer of Code recently came to an end, and we’d like to shine some light on the projects and work accomplished! Community### What's new in Swift: October 2025 Edition October 31, 2025 Editor Note: This is the first of a new series, What’s new in Swift, a regular digest featuring what’s new in the Swift project and ecosystem, with insights and perspectives from across the Swift world. This October edition covers highlights from the Server Side Swift conference, major package releases, and the latest Swift Evolution proposals. Digest### Announcing the Swift SDK for Android October 24, 2025 Swift has matured significantly over the past decade — extending from cloud services to Windows applications, browser apps, and microcontrollers. Swift powers apps and services of all kinds, and thanks to its great interoperability, you can share code across platforms. Developer Tools### Introducing Swift Profile Recorder: Identifying Performance Bottlenecks in Production October 6, 2025 Swift Profile Recorder, an in-process sampling profiler for Swift services, is now available as an open source project. Developer Tools### The Growth of the Swift Server Ecosystem September 23, 2025 Nearly ten years ago, Swift was open sourced and an official runtime for Linux was released. I’ve been involved with Swift on the server since almost the very beginning, originally picking it up as a way to use a language I really enjoyed for backend development. In that time Swift has come a long way, with stability across platforms, a burgeoning ecosystem and many success stories. It’s matured into a great option for highly-scalable server applications, websites, and lambdas. In this post, I’ll cover how Swift: Community### Swift 6.2 Released September 15, 2025 We’re excited to announce Swift 6.2, a release aimed at making every Swift developer more productive, regardless of where or how you write code. From improved tooling and libraries to enhancements in concurrency and performance, Swift 6.2 delivers a broad set of features designed for real-world development at every layer of the software stack. Language### Redesigned Swift.org is now live June 4, 2025 Over the past few months, the website workgroup has been redesigning Swift.org. On behalf of the website workgroup, I’m pleased to announce that we have merged the initial changes. Community### Swift at Apple: Migrating the Password Monitoring service from Java June 2, 2025 Swift is heavily used in production for building cloud services at Apple, with incredible results. Last year, the Password Monitoring service was rewritten in Swift, handling multiple billions of requests per day from devices all over the world. In comparison with the previous Java service, the updated backend delivers a 40% increase in performance, along with improved scalability, security, and availability. Adopters### ICYMI: Memory Safety, Ecosystem Talks, and Java Interoperability at FOSDEM 2025 May 5, 2025 The Swift community had a strong presence at FOSDEM 2025, the world’s largest independently run open source conference, held every year in Brussels, Belgium. FOSDEM highlighted a range of Swift-related talks related to memory safety, a broad ecosystem around Swift including using it to develop web services and embedded projects, and new areas of the project including Java interoperability. Digest### Swift 6.1 Released March 31, 2025 Swift 6.1 is now available! Language### Introducing swiftly 1.0 March 28, 2025 Today we’re delighted to introduce the first stable release of swiftly, a Swift version manager that takes the pain out of installing, managing and updating your Swift toolchain. Developer Tools### How Swift's server support powers Things Cloud February 21, 2025 You might be familiar with Things, a delightful personal task manager that has won two Apple Design Awards and is available across Apple devices including iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro. At Cultured Code, the team behind Things, we care about a great user experience across every aspect of the product. This extends to our server back end, and after a rewrite our Things Cloud service has transitioned entirely to Swift. Over the past year in production, Swift has consistently proven to be reliable, performant, and remarkably well-suited for our server-side need. Adopters### Introducing gRPC Swift 2 February 14, 2025 Say hello to gRPC Swift 2: a major update that brings first-class concurrencysupport and more expressive APIs for a seamless developer experience. Developer Tools### Updating the Visual Studio Code extension for Swift February 10, 2025 Today, we are excited to announce a new version of the Swift extension forVisual Studio Code – now published to the extensionmarketplaceas an official supported release of the Swift team. The aim of this extension isto provide a high-quality, feature-complete extension that makes developing Swiftapplications on all platforms a seamless experience. Developer Tools### The Next Chapter in Swift Build Technologies February 1, 2025 Swift continues to grow in popularity as a cross-platform language supporting a wide variety of use cases, with support on a variety of embedded devices, form factors that encompass wearables to server, and a wide variety of operating systems. As Swift expands, there’s value in investing in matching cross-platform build tools that provide a powerful, consistent, and flexible experience across the ecosystem. Developer Tools### Announcing Swift 6 September 17, 2024 We’re delighted to announce the general availability of Swift 6. This is a major new release that expands Swift to more platforms and domains. Language### Introducing Oblivious HTTP support in Swift August 21, 2024 We’re excited to introduce an implementation of provisional support for Oblivious HTTP to the Swift ecosystem, with the availability of a new package called SwiftNIO Oblivious HTTP. Developer Tools### Announcing Swift Homomorphic Encryption July 30, 2024 We’re excited to announce a new open source Swift package for homomorphicencryption in Swift:swift-homomorphic-encryption. Developer Tools### Plotting a Path to a Package Ecosystem without Data Race Errors July 1, 2024 Swift 6 introduces compile-time data race safety checking for any code that opts in to use the Swift 6 language mode. While individual modules can adopt this mode incrementally and independently of their dependencies, the full benefit of runtime data race safety is only realized when all modules have opted in. Therefore, the quick adoption of Swift 6 language mode across the ecosystem of open-source packages will play a key role in advancing data race safety across the entire Swift ecosystem. Language### New GitHub Organization for the Swift Project June 10, 2024 Today, we are announcing an exciting development for the Swift programming language: its migration to a dedicated GitHub organization at GitHub.com/swiftlang. Community### Get Started with Embedded Swift on ARM and RISC-V Microcontrollers April 3, 2024 We’re pleased to introduce a repository of example projects that demonstrate how Embedded Swift can be used to develop software on a range of microcontrollers. Developer Tools### SSWG 2024 Annual Update March 28, 2024 In this annual post, the Swift Server WorkGroup (SSWG) reflects on the community, ecosystem-wide accomplishments and the workgroup’s focus areas for the year ahead. Community### Writing GNOME Apps with Swift March 25, 2024 Swift is well-suited for creating user interfaces thanks to the clean syntax, static typing, and special features making code easier to write.Result builders, combined with Swift’s closure expression syntax, can significantly enhance code readability. Developer Tools### Introducing the Benchmark Package: Complementing Unit Tests with Performance Checks March 20, 2024 In the world of software development, the old adage “make it work, make it right, make it fast” serves as a guiding principle for creating robust, efficient applications. This journey starts with ensuring that our code functions as intended, a task where unit and integration testing have proven indispensable. However, ensuring functionality is only part of the equation. The true measure of an application’s excellence extends into its performance - how fast and efficiently it operates under various conditions. Herein lies the critical but often overlooked third step: making it fast. Developer Tools### Byte-sized Swift: Building Tiny Games for the Playdate March 12, 2024 I’m excited to share swift-playdate-examples, a technical demonstration of using Swift to build games for Playdate, a handheld game system by Panic. Adopters### Iterate Over Parameter Packs in Swift 6.0 March 7, 2024 Parameter packs, introduced in Swift 5.9, make it possible to write generics that abstract over the number of arguments. This eliminates the need to have overloaded copies of the same generic function for one argument, two arguments, three arguments, and so on.With Swift 6.0, pack iteration makes it easier than ever to work with parameter packs.This post will show you how to make the best use of pack iteration. Language### Swift 5.10 Released March 5, 2024 Swift was designed to be safe by default, preventing entire categories of programming mistakes at compile time. Sources of undefined behavior in C-based languages, such as using variables before they’re initialized or a use-after-free, are defined away in Swift. Language### Swift joins Google Summer of Code 2024 February 23, 2024 We’re happy to announce that Swift will once again be joining Google Summer of Code 2024! Community### On-device ML research with MLX and Swift February 20, 2024 The Swift programming language has a lot of potential to be used for machine learning research because it combines the ease of use and high-level syntax of a language like Python with the speed of a compiled language like C++. Developer Tools### Swift Summer of Code 2023 Summary February 13, 2024 The Swift project regularly participates in Google Summer of Code in order to help people new to the open source ecosystem dip their toes in contributing to Swift and its growing ecosystem. Community### Swift OpenAPI Generator 1.0 Released January 31, 2024 We’re happy to announce the stable 1.0 release of Swift OpenAPI Generator!OpenAPI is an open standard for describing the behavior of HTTP services with a rich ecosystem of tooling. One thing OpenAPI is particularly known for is tooling to generate interactive documentation. But the core motivation of OpenAPI is code-generation, which allows adopters to use an API-first approach to server development and, because many existing services document their API in this format, allows client developers to generate type-safe, idiomatic code to call these APIs. Developer Tools### On-Crash Backtraces in Swift November 8, 2023 The new Swift 5.9 release contains a number of helpful, new features for debugging code, including an out-of-process, interactivecrash handler to inspect crashes in real time, the ability to triggerthe debugger for just-in-time debugging, along with concurrency-awarebacktracing to make it easier to understand control flow in a programthat uses structured concurrency. Language### Introducing Packages on Swift.org November 1, 2023 Today, Swift.org gains a useful, new top-level Packages page. Community### Swift Everywhere: Using Interoperability to Build on Windows October 13, 2023 This post was originally published at Speaking in Swift by The Browser Company under the title “Interoperability: Swift’s Super Power”. Adopters### Debugging Improvements in Swift 5.9 September 28, 2023 Swift 5.9 introduced a number of new debugging features to the compiler and LLDB debugger. Language### Swift 5.9 Released September 18, 2023 Swift 5.9 is now available! 🎉 Language### SSWG 2023 Annual Update August 17, 2023 Once a year, the Swift Server workgroup (SSWG) reflects on recent community accomplishments and lays out focus areas for the year ahead. Community### Introducing Swift HTTP Types July 10, 2023 We’re excited to announce a new open source package called Swift HTTP Types. Developer Tools### Introducing Swift OpenAPI Generator June 12, 2023 We’re excited to announce a set of open source libraries designed to help both client and server developers streamline their workflow around HTTP communication using the industry‑standard OpenAPI specification. Developer Tools### Using Upcoming Feature Flags May 30, 2023 Beginning in Swift 5.8 you can flexibly adopt upcoming Swift features using a new compiler flag and compilation condition. This post describes the problem upcoming feature flags solve, their benefits, and how to get started using them in your projects. Language### Evolving the Swift Workgroups May 18, 2023 Today, the Swift Core Team is announcing forward-looking changes to the structure of Swift, the work, and the people around it. These changes include new groups, names, organization, as well as inclusion as a first-class concept for each group: Community### Foundation Package Preview Now Available April 26, 2023 I’m pleased to announce that a preview of the future of Foundation is now available on GitHub! Developer Tools### Swift 5.8 Released! March 30, 2023 Swift 5.8 is now officially released! 🎉 This release includes major additions to the language and standard library, including hasFeature to support piecemeal adoption of upcoming features, an improved developer experience, improvements to tools in the Swift ecosystem including Swift-DocC, Swift Package Manager, and SwiftSyntax, refined Windows support, and more. Language### Swift Package Index gains Apple sponsorship March 24, 2023 Building a thriving open source ecosystem is important to Swift’s success, and open source packages are the building blocks that help power countless Swift projects. As the number of packages increases, discovery becomes critical for developers needing to find the tools and libraries that help them build their apps and services. Community### Introducing Swift Certificates and Swift ASN.1 March 7, 2023 I’m excited to announce two new open source Swift packages: swift-certificates and swift-asn1. Together, these libraries provide developers a faster and safer implementation of X.509 certificates, a critical technology that powers the security of TLS. Developer Tools### “The Swift Programming Language” book now published with DocC February 16, 2023 We’re happy to announce that The Swift Programming Language book (TSPL) is now published using Swift-DocC, starting with Swift 5.8. TSPL is now ready to start accepting content contributions, under the direction of the Swift Documentation Workgroup. Community### The Future of Foundation December 9, 2022 The Foundation framework is used in nearly all Swift projects. It provides both a base layer of functionality for fundamentals like strings, collections, and dates, as well as setting conventions for writing great Swift code. Developer Tools### Swift Summer of Code 2022 Summary December 5, 2022 Google Summer of Code (also known as GSoC) is a long-running mentorship program focused on introducing contributors to the world of open source development. This year marks the fifth time the Swift project has participated in GSoC. Community### Swift project in 2023 November 18, 2022 There’s a lot of exciting work going on in the Swift project, and it’s hard to keep track of it all because it’s happening in many different repositories, pull requests, and forum threads. To give the community a better view of the big picture, the Core Team surveyed workgroups and developers across the project and collected information about what they’re focused on over the next year. Community### Swift 5.7 Released! September 12, 2022 Swift 5.7 is now officially released! Swift 5.7 includes major additions to the language and standard library, enhancements to the compiler for a better developer experience, improvements to tools in the Swift ecosystem including SourceKit-LSP and the Swift Package Manager, refined Windows support, and more. Language### Announcing SwiftNIO IMAP August 30, 2022 As part of expanding the Swift on Server ecosystem, we’re thrilled to announce the release of a new IMAPv4 parser and encoder, SwiftNIO IMAP. Developer Tools### Server Guides Now on Swift.org August 18, 2022 The Swift Server Workgroup has maintained a set of open source guides for Swift on Server development for a number of years. Now that swift.org is open source, we’ve moved the guides to this site. Community### Announcing the Documentation Workgroup July 22, 2022 I’m thrilled to announce the formation of the Documentation Workgroup! Community### Swift Extension for Visual Studio Code July 14, 2022 As Swift is deployed across more platforms, it is important that Swift can be developed on more platforms as well. The Swift Extension for Visual Studio Code provides a cross-platform solution for Swift development supporting macOS, Linux, and Windows. Developer Tools### Swift language announcements from WWDC22 July 6, 2022 Language### Developer Spotlight: Porting Graphing Calculator from C++ to Swift June 30, 2022 Developer Spotlight is a series highlighting interesting Swift developers from around the world. This post is authored by Ron Avitzur, author of the Pacific Tech Graphing Calculator. Adopters### Exploring Swift: Property wrappers in the wild June 21, 2022 Property wrappers were introduced in Swift 5.1 as a way to make it easier to reuse common programming patterns, but since then they have grown to work with local context, function and closure parameters, and more. We’re lucky enough to have lots of creators in our community creating apps with property wrappers then writing about their experiences, and we’d like to share a few of our favorites with you here. Language### Announcing the Language Workgroup June 15, 2022 The Swift community has accomplished a great deal together, with hundreds of changes to Swift through the Swift Evolution process and significant advances to the language and tooling since Swift became an open-source project. In recent years, there has been increased momentum in the community through various workgroups, including Diversity in Swift and the Server Workgroup. The Core Team recognizes the opportunity to tap into the potential of these workgroups to amplify the impact of the community and support more members of the community driving impactful investments. Language### Celebrating learning experiences from the 2021 Swift Mentorship Program May 19, 2022 As we prepare for the 2022 Swift Mentorship Program, we’re excited to share insights from a few of last year’s mentees on their learning journey. Community### SSWG 2021 Annual Update April 25, 2022 Since the last update from the SSWG, the Swift on Server ecosystem has continued to grow and expand. Community### Introducing Swift Async Algorithms March 24, 2022 As part of Swift’s move toward safe, simple, and performant asynchronous programming, we are pleased to introduce a new package of algorithms for AsyncSequence. It is called Swift Async Algorithms and it is available now on GitHub. Developer Tools### Swift.org Website is Now Open Source March 15, 2022 The Swift.org site has long served as the hub where developers come together to work on the open source Swift compiler, libraries, and tools.Today, we are happy to announce that the Swift.org website itself is also an open source project, ready for community contributions.With this move, the website is also expanding its mandate to better support the entire community of Swift users, not just contributors. Community### Swift 5.6 Released! March 14, 2022 Swift 5.6 is now officially released! Language### Introducing Swift Distributed Actors October 28, 2021 We’re thrilled to announce a new open-source package for the Swift on Server ecosystem, Swift Distributed Actors, a complete server-oriented cluster library for the upcoming distributed actor language feature! Developer Tools### Swift-DocC is Now Open Source October 13, 2021 At WWDC21, Apple announced Swift-DocC, a new documentation compiler for Swift frameworks andpackages. Swift-DocC provides an effortless way to author great documentation alongside your code,and generate comprehensive documentation websites for Swift codebases. It supports API docs authoredas code comments, long-form conceptual articles written in Markdown, and even step-by-step tutorialswith integrated images. Developer Tools### Swift 5.5 Released! September 20, 2021 Swift 5.5 is now officially released! Swift 5.5 is a massive release, which includes newly introduced language capabilities for concurrency, including async/await, structured concurrency, and Actors. My heartfelt thanks to the entire Swift community for all the active discussion, review, and iteration on the concurrency (and other additions) that make up the release. Thank you! Language### Package Collections June 7, 2021 In Swift 5.5, the Swift Package Manager adds support for package collections — bite size curated lists of packages that make it easy to discover, share and adopt packages. Community### Announcing the Swift Mentorship Program May 10, 2021 We’re thrilled to announce the Swift Mentorship Program — a new contributor program for the Swift community and part of the Diversity in Swift initiative. The Swift Mentorship Program is designed to support developers as they become active open source contributors to the Swift project, providing direct mentorship with experienced members of the community. Community### Swift 5.4 Released! April 26, 2021 Swift 5.4 is now officially released! This release contains a variety of language and tooling improvements. Language### Introducing Swift Collections April 5, 2021 I’m thrilled to announce Swift Collections, a new open-source package focused on extending the set of available Swift data structures. Like the Swift Algorithms and Swift Numerics packages before it, we’re releasing Swift Collections to help incubate new functionality for the Swift Standard Library. Developer Tools### Celebrating Women’s History Month March 24, 2021 This Women’s History Month, we’re so happy to celebrate the amazing women developers in our community. Women have made an immense impact on the Swift ecosystem by building important tools we use every day, creating resources to pass on what they have learned, and more. This post highlights a few outstanding contributions from individuals in the Women in Swift community. Community### Celebrating Black History Month February 22, 2021 Black History Month is a time to learn about, reflect on, and celebrate the impact and accomplishments of the Black community. In honor of Black History Month, we have curated a handful of outstanding contributions from the Black Swift community to acknowledge and celebrate their impact on the Swift ecosystem. Community### Diversity in Swift December 16, 2020 6 years ago, Swift was announced. In the years since, a thriving community has emerged around a shared passion for building and using the Swift programming language. This community has spread far beyond Apple through conferences, open source repositories, community-authored books, and more — people are always finding new ways to connect with and support other Swift developers around the world. However, we feel we can always do more to encourage a wider range of developers to actively engage in our community. That’s why we’re excited to announce Diversity in Swift. This initiative is focused on further elevating a wide variety of voices, and making it easier for developers to start learning or contributing to Swift, regardless of their background. Community### Accessibility and Inclusion in the Swift Community December 16, 2020 Diversity and inclusion are both critically important values when writing software designed to be used and enjoyed by everyone. The Swift community embraces these values, and we are excited to highlight ways to make sure everyone feels welcome, and bring even more people into the fold of Swift development. Community### Introducing SwiftNIO SSH November 19, 2020 I am delighted to introduce a new open source project for the Swift Server ecosystem, SwiftNIO SSH. Distributed as a Swift package, SwiftNIO SSH is designed to enable Swift developers to interact with the SSH network protocol. Developer Tools### Introducing Swift Service Discovery October 21, 2020 It is my pleasure to announce a new open source project for the Swift Server ecosystem, Swift Service Discovery. Service Discovery is a Swift package designed to establish a standard API that can be implemented by various service discovery backends such as DNS-based, key-value store, etc. Developer Tools### Announcing Swift Algorithms October 7, 2020 I’m excited to announce Swift Algorithms, a new open-source package of sequence and collection algorithms, along with their related types. Developer Tools### Introducing Swift Atomics October 1, 2020 I’m delighted to announce Swift Atomics, a new open source package that enables direct use of low-level atomic operations in Swift code. The goal of this library is to enable intrepid systems programmers to start building synchronization constructs (such as concurrent data structures) directly in Swift. Developer Tools### Swift System is Now Open Source September 25, 2020 In June, Apple introduced Swift System, a new library for Apple platforms that provides idiomatic interfaces to system calls and low-level currency types. Today, I’m excited to announce that we’re open-sourcing System and adding Linux support! Our vision is for System to eventually act as the single home for low-level system interfaces for all supported Swift platforms. Developer Tools### Introducing Swift on Windows September 22, 2020 The Swift project is introducing new downloadable Swift toolchain images for Windows! These images contain development components needed to build and run Swift code on Windows. Community### Swift 5.3 released! September 16, 2020 Swift 5.3 is now officially released! 🎉 Language### Introducing Swift Cluster Membership August 27, 2020 It is my pleasure to announce a new open source project for the Swift Server ecosystem, Swift Cluster Membership. This library aims to help Swift grow in a new space of server applications: clustered multi-node distributed systems. With this library we provide reusable runtime-agnostic membership protocol implementations which can be adopted in various clustering use-cases. Developer Tools### Introducing Swift Service Lifecycle July 15, 2020 It is my pleasure to announce a new open source project for the Swift server ecosystem, Swift Service Lifecycle. Service Lifecycle is a Swift package designed to help server applications, also known as services, manage their startup and shutdown sequences. Developer Tools### Introducing Swift AWS Lambda Runtime May 29, 2020 It is my pleasure to announce a new open source project for the Swift Server ecosystem, Swift AWS Lambda Runtime. Distributed as a Swift package, the Swift AWS Lambda Runtime is designed to help Swift developers build serverless functions for the Amazon Web Services Lambda platform. Developer Tools### Additional Linux Distributions May 5, 2020 It is my pleasure to announce a new set of Linux distributions officially supported by the Swift project. Swift.org now offers downloadable toolchain and Docker images for the following new Linux distributions: Developer Tools### Swift 5.3 Release Process March 25, 2020 This post describes the goals, release process, and estimated schedule for Swift 5.3. Community### Swift 5.2 Released! March 24, 2020 Swift 5.2 is now officially released! 🎉 Language### Announcing ArgumentParser February 27, 2020 We’re delighted to announce ArgumentParser, a new open-source library that makes it straightforward — even enjoyable! — to parse command-line arguments in Swift. Developer Tools### Standard Library Preview Package February 18, 2020 I’m excited to announce a new open-source package and an enhancement to the Swift Evolution process: the Standard Library Preview package! The preview package provides access to functionality that has been accepted into the Swift standard library through the Swift Evolution process, but has not yet shipped as part of an official Swift release. This will allow us to incorporate feedback informed by real-world usage and remove many of the technical obstacles to contributing to the standard library. Developer Tools### Library Evolution in Swift February 13, 2020 Swift 5.0 introduced a stable binary interface on Apple platforms. This meant that apps built with the Swift 5.0 compiler can use the Swift runtime and standard library built into the operating system, and that existing apps will remain compatible with new versions of the Swift runtime in future operating system releases. Language### Introducing Swift Crypto February 3, 2020 I’m thrilled to announce a new open-source project for the Swift ecosystem,Swift Crypto. Swift Crypto is a newSwift package that brings the fantastic APIs of AppleCryptoKit to the widerSwift community. This will allow Swift developers, regardless of the platformon which they deploy their applications, to access these APIs for a common setof cryptographic operations. Developer Tools### Swift Numerics November 7, 2019 I’m excited to announce a new open-source project for the Swift ecosystem, Swift Numerics!Swift Numerics will provide the building blocks of numerical computing in Swift, as a set of fine-grained modules bundled together into a single Swift package.My hope is that we can quickly fill some important gaps in the Standard Library’s existing APIs, and unlock new domains of programming to the Swift language. Developer Tools### SSWG Annual Update October 31, 2019 The Swift Server Work Group (SSWG) set out 12 months ago to begin defining and prioritizing new efforts to address the needs of the Swift server community. Since then, we’ve been busy meeting regularly, working with the community, defining guidelines, writing Swift packages, voting on proposals, posting in the forums, and much more. We feel that we’ve made significant progress toward those goals we set out last year and we’d like to share a high-level update with you today. Community### New Diagnostic Architecture Overview October 17, 2019 Diagnostics play a very important role in a programming language experience. It’s vital for developer productivity that the compiler can produce proper guidance in any situation, especially incomplete or invalid code. Language### Swift 5.2 Release Process September 24, 2019 This post describes the goals, release process, and estimated schedule for Swift 5.2. Community### Swift 5.1 Released! September 20, 2019 Swift 5.1 is now officially released! Language### Thread Sanitizer for Swift on Linux August 13, 2019 Thread Sanitizer is now available on Linux as part of Swift 5.1! Head over to Swift.org and grab a Swift 5.1 Development snapshot to try it out. Developer Tools### Swift 5 Released! March 25, 2019 Swift 5 is now officially released! Language### UTF-8 String March 20, 2019 Swift 5 switches the preferred encoding of strings from UTF-16 to UTF-8 while preserving efficient Objective-C-interoperability. Because the String type abstracts away these low-level concerns, no source-code changes from developers should be necessary*, but it’s worth highlighting some of the benefits this move gives us now and in the future. Language### Behind the Proposal — SE-0200 Enhancing String Literals Delimiters to Support Raw Text February 20, 2019 The development, refinement, and deployment of SE-0200 Enhancing String Literals Delimiters to Support Raw Text was a long and surprising journey. It ended with a uniquely Swift take on “raw strings” that focused on adding custom delimiters to string literals and escape sequences. Language### Swift 5.1 Release Process February 18, 2019 This post describes the goals, release process, and estimated schedule for Swift 5.1. Community### Evolving Swift On Apple Platforms After ABI Stability February 11, 2019 With the release of Swift 5.0, Swift is now ABI stable and is delivered as a core component of macOS, iOS, tvOS, and watchOS. ABI stability has been a goal for Swift since its inception, and brings with it many benefits for developers and users of these platforms: Language### ABI Stability and More February 7, 2019 It has been a longstanding goal to stabilize Swift’s ABI on macOS, iOS, watchOS, and tvOS. While a stable ABI is an important milestone for the maturity of any language, the ultimate benefit to the Swift ecosystem was to enable binary compatibility for apps and libraries. This post describes what binary compatibility means in Swift 5 and how it will evolve in future releases of Swift. Language### Introducing the sourcekitd Stress Tester February 6, 2019 Sourcekitd provides the data backing key editor features like code completion, semantic highlighting, and refactoring for Swift files in both Xcode and the recently announced SourceKit-LSP. To help improve its robustness, we’re introducing a new tool, the sourcekitd stress tester, that over the past few months has helped find 91 reproducible sourcekitd crashes, assertion failures, and hangs. This post covers the stress tester’s implementation, its deployment in Swift’s CI and PR testing, and how Swift developers can run it over their own projects to help improve the Swift editing experience for everyone. Developer Tools### Swift 5 Exclusivity Enforcement February 5, 2019 The Swift 5 release enables runtime checking of “Exclusive Access toMemory” by default in Release builds, further enhancing Swift’scapabilities as a safe language. In Swift 4, these runtime checks wereonly enabled in Debug builds. In this post, I’ll first explain whatthis change means for Swift developers before delving into why it isessential to Swift’s strategy for safety and performance. Language### REPL Support for Swift Packages October 8, 2018 The swift run command has a new --repl option which launches the Swift REPL with support for importing library targets of a package. Developer Tools### How Mirror Works September 26, 2018 Swift places a lot of emphasis on static typing, but it also supports rich metadata about types, which allows code to inspect and manipulate arbitrary values at runtime. This is exposed to Swift programmers through the Mirror API. One might wonder, how does something like Mirror work in a language with so much emphasis on static types? Let’s take a look! Language### Swift 5.0 Release Process September 25, 2018 This post describes the goals, release process, and estimated schedule forSwift 5.0. Community### Swift 4.2 Released! September 17, 2018 Swift 4.2 is now officially released! Swift 4.2 builds on the strengths of Swift 4, delivering faster compile times, improving the debugging experience, updating the standard library, and converging on binary compatibility. Language### Introducing Related Projects to Swift Forums May 10, 2018 The Swift community is growing and Swift Forums are growing with it. Community### Swift Community-Hosted Continuous Integration May 3, 2018 We are delighted to announce a significant expansion of our Swift.org continuous integration testing system. Members of the Swift community have been hard at work to support Swift on a number of new platforms, and we have extended the Swift CI system to support community-hosted nodes for testing additional platforms. Community### Reimplementation of Implicitly Unwrapped Optionals April 26, 2018 A new implementation of implicitly unwrapped optionals (IUOs) landed in the Swift compiler earlier this year and is available to try in recent Swift snapshots.This completes the implementation of SE-0054 - Abolish ImplicitlyUnwrappedOptional Type.This is an important change to the language that eliminated some inconsistencies in type checking and clarified the rule of how these values are to be treated so that it is consistent and easy to reason about. For more information, see the motivation section of that proposal. Language### Swift 4.1 Released! March 29, 2018 Swift 4.1 is now officially released! It contains updates to the core language, including more support for generics, new build options, as well as minor enhancements to Swift Package Manager and Foundation. There was also significant progress made in stabilizing the ABI. Language### Swift 4.2 Release Process February 28, 2018 This post describes the goals, release process, and estimated schedule forSwift 4.2. Community### Code Size Optimization Mode in Swift 4.1 February 8, 2018 In Swift 4.1 the compiler now supports a new optimization mode which enables dedicated optimizations to reduce code size. Language### Swift Forums Now Open! January 19, 2018 We are delighted to announce that the Swift project has completed the process of migrating to the Swift Forums as the primary method for discussion and communication! The former mailing lists have been shut down and archived, and all mailing list content has been imported into the new forum system. Community### Conditional Conformance in the Standard Library January 8, 2018 The Swift 4.1 compiler brings the next phase of improvements from theroadmap for generics: conditional conformances. Language### Swift 4.1 Release Process October 17, 2017 This post describes the goals, release process, and estimated schedule for Swift 4.1. Community### Xcode 9.1 Improves Display of Fatal Errors October 5, 2017 Swift has language constructs that allow you to specify your program’s expectations. If these expectations are not met at runtime, the program will be terminated. For example, indexing into an array implicitly expresses an expectation that the index is in bounds: Developer Tools### Dictionary and Set Improvements in Swift 4.0 October 4, 2017 In the latest release of Swift,dictionaries and sets gain a number of new methods and initializersthat make common tasks easier than ever.Operations like grouping, filtering, and transforming valuescan now be performed in a single step,letting you write more expressive and efficient code. Language### Swift 4.0 Released! September 19, 2017 Swift 4 is now officially released! Swift 4 builds on the strengths of Swift 3, delivering greater robustness and stability, providing source code compatibility with Swift 3, making improvements to the standard library, and adding features like archival and serialization. Language### Swift Local Refactoring August 22, 2017 Xcode 9 includes a brand new refactoring engine. It can transform code locallywithin a single Swift source file, or globally, such as renaming a method or propertythat occurs in multiple files and even different languages. The logic behind local refactorings isimplemented entirely in the compiler and SourceKit, and is now open source inthe swift repository. Therefore, any Swift enthusiast cancontribute refactoring actions to the language. This post discusses howa simple refactoring can be implemented and surfaced in Xcode. Developer Tools### Swift Package Manager Manifest API Redesign June 21, 2017 The Package Manager in Swift 4 includes the redesigned Package.swift manifestAPI. The new API is easier to use and follows the design guidelines. The targetinference rules in Swift 3 Package Manager were a common source of confusion. Werevised these rules and removed most of the inference, favoring the practice ofexplicitly specifying package structure in the manifest. Developer Tools### Swift Source Compatibility Test Suite Now Available April 24, 2017 We are pleased to announce the release of a new Swift source compatibility testsuite as part of the effortto maintain source compatibility in future Swift releases. Developer Tools### Swift 3.1 Released! March 27, 2017 Swift 3.1 is now officially released! Swift 3.1 is a minor release that contains improvements and refinements to the Standard Library. Thanks to efforts by IBM and other members of the community, it also includes many updates to the Linux implementation of Swift. There are also a number of updates to Swift Package Manager. Language### Swift 4 Release Process February 16, 2017 This post describes the goals, release process, and estimated schedule for Swift 4. Community### Faster Mix-and-Match Builds with Precompiled Bridging Headers January 26, 2017 An examination of build times of Xcode projects that mix Objective-C and Swift, which can contain large bridging headers, shows that the Swift compiler spends a lot of time re-processing the same bridging headers for all the Swift files in a project.In certain projects, each additional Swift file increases the overall build time noticeably, even when the Swift file is quite modest. Language### Swift Evolution Status Page Now Available January 18, 2017 We’re pleased to announce the release of the new Swift Evolution status page as a one-stop destination for information about proposed changes to Swift. Community### Swift 3.1 Release Process December 9, 2016 This post describes the goals, release process, and estimated schedule for Swift 3.1. Community### Server APIs Work Group October 25, 2016 Since Swift became available on Linux there has been a huge amount of interest in using Swift on the server, resulting in the emergence of a number of Web Frameworks, including Kitura, Vapor, Perfect, and Zewo, along with many others. As an important part of the Swift ecosystem, and one that we are keen to foster, we are today announcing the formation of the Server APIs work group. Community### Whole-Module Optimization in Swift 3 October 21, 2016 Whole-module optimization is an optimization mode of the Swift compiler.The performance win of whole-module optimization heavily depends on the project, but it can be up to two or even five times. Language### Swift 3.0 Released! September 13, 2016 Swift 3.0, the first major release of Swift since it was open-sourced, is now officially released! Swift 3 is a huge release containing major improvements and refinements to the core language and Standard Library, major additions to the Linux port of Swift, and the first official release of the Swift Package Manager. Language### Xcode Playground Support July 7, 2016 We are delighted to introduce Xcode Playground Supportas part of the Swift open source community! Developer Tools### Swift 3.0 Preview 1 Released! June 13, 2016 We are very pleased to announce Developer Preview 1 of Swift 3.0! Language### Swift 2.3 June 12, 2016 We are pleased to announce Swift 2.3! Language### Swift 3.0 Release Process May 6, 2016 This post describes the goals, release process, and estimated schedule for Swift3.0. Community### New Features in Swift 2.2 March 30, 2016 Swift 2.2 brings new syntax, new features, and some deprecations too. It is an interim release before Swift 3 comes later this year with even bigger changes, and the changes in Swift 2.2 align with the broader goals of Swift 3 to focus on gradually stabilizing the core language and Standard Library by adding missing features, refining what is already there, and removing what is no longer needed in the language. All changes in Swift 2.2 went through the community-driven Swift evolution process — where over 30 proposals have been submitted, reviewed, and accepted since Swift was open-sourced a few months ago. Language### Swift 2.2 Released! March 21, 2016 We are very pleased to announce the release of Swift 2.2! This is the first official release of Swift since it was open-sourced on December 3, 2015. Notably, the release includes contributions from 212 non-Apple contributors — changes that span from simple bug fixes to enhancements and alterations to the core language and Swift Standard Library. Language### Expanding Commit Access February 29, 2016 Now that the Swift Continuous Integration system is established and proven, we’d like to grant commit access on a more frequent basis to project contributors who have established a track record of good contributions. If you would like commit access, please send an email to the code owners list with a list of 5 non-trivial pull requests that we accepted without modifications. Community### Swift Benchmark Suite now Available February 8, 2016 Apple’s Swift Team is happy to announce that Swift’s benchmarksuite is now opensource. Developer Tools### Continuous Integration now Available February 1, 2016 We are excited to announce that we have rolled out continuous integration (aka, CI) for the Swift project! Community### It's Coming: the Great Swift API Transformation January 29, 2016 Cocoa, the Swift standard library, maybe even your own types andmethods—it’s all about to change, and you can help determine how. Language### Swift 2.2 Release Process January 5, 2016 This post describes the goals, release process, and estimated schedulefor Swift 2.2. Community### Swift 3 API Design Guidelines December 3, 2015 The design of commonly-used libraries has a large impact on theoverall feel of a programming language. Great libraries feel like anextension of the language itself, and consistency across librarieselevates the overall development experience. To aid in theconstruction of great Swift libraries, one of the major goals forSwift 3 is to define a set of API design guidelinesand to apply those design guidelines consistently. Language### The Swift Linux Port December 3, 2015 With the launch of the open source Swift project, we are also releasinga port that works with the Linux operating system! You can build it fromthe Swift sources or download pre-built binaries for Ubuntu. The portis still a work in progress but we’re happy to say that it is usabletoday for experimentation. Currently x86_64 is the only supportedarchitecture on Linux. Developer Tools### The Swift.org Blog December 3, 2015 Welcome to the blog on Swift.org! Today we launched the open source Swift project along with the Swift.org website. We couldn’t be more excited to work together in an open community to find and fix issues, add enhancements, and bring Swift to new platforms. Community