Swift Unwrapped: Recent Episodes

JP Simard, Jesse Squires, Spec Network, Inc.

Discussions on the Swift programming language and other projects at Swift.org

Paul Hudson's What's New in Swift 5.5
Swift By Sundell
Time by Dave DeLong (mistakenly called Chronos during the show)

Links* Swift concurrency roadmap * Episode 27: Concurrency with Chris Lattner * [Concurrency] Actors & actor isolation * [Concurrency] Interoperability with Objective-C * [Concurrency] Structured concurrency * [Concurrency] Asynchronous functions * [Concurrency] AsyncSequence * Swift Concurrency Proposals Dependencies Graph * Protocol-based Actor Isolation: Draft #2 * Actors are reference types, but why classes?

Sponsors AWS Amplify* - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS

Get in TouchIf you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

Links* Announcement blog post * Karoy Lorentey * GitHub Repository * Atomics forum * Hacker News Discussion * Guillaume Lessard’s existing swift-atomics repo

Sponsors AWS Amplify* - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS

Get in TouchIf you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped.

What’s in a Swift runtime?* Swift on Mac OS 9 * Heap Objects * Type Layout * Type Metadata * Uniquing Caches * Class Metadata * Class Metadata Initialization

Other links* Layout guarantees * Steve Troughton-Smith’s BitPaint * @ksherlock’s mpw * An explainer on Swift weak references

About Jordan* Twitter @UINT_MIN * Belkadan * Citizens’ Climate Lobby

Sponsors Instabug - Get Application Performance Monitoring built for mobile apps and stay on top of your app quality with Instabug. Check them out and them them know we sent you at https://try.instabug.com/SwiftUnwrapped * AWS Amplify* - AWS Amplify is a suite of tools and services for iOS developers to build full stack serverless and cloud-based mobile apps. Check out our getting started Tutorial for iOS! Go to awsamplify.info/IOS

Get in TouchIf you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped.

5.3 release process
Swift for Linux distros
AWS lambda Runtime
Swift Service Lifecycle
Swift Cluster membership
Proposals accepted/implemented in 5.3
Commit history for Swift 5.3 branch
Mike Ash's perf PR
Hacking with Swift What’s New in Swift 5.3

Get in TouchIf you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Swift Package Index
- Intro
- Website
- Forum
- GitHub
- Package List
- Dave
- Sven
- CocoaPods website
Swift Package Registry
- Swift Package Registry Service Pitch
  - Tweet
- Package Manager Source Archive Dependencies Pitch
  - Tweet
- Mattt Thompson

Get in TouchIf you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

SE-0282 Tuples conform to Equatable, Comparable, and Hashable* Acceptance: https://forums.swift.org/t/accepted-se-0283-tuples-conform-to-equatable-comparable-and-hashable/36658 * Review: https://forums.swift.org/t/se-0283-tuples-conform-to-equatable-comparable-and-hashable/36140 * Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0283-tuples-are-equatable-comparable-hashable.md

Bow: https://bow-swift.io

👋 Get in TouchWe are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.

🖤 Leave A ReviewIf you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.

Head over to our iTunes page to share your opinion of the show!

Foundation on Windows: https://forums.swift.org/t/swift-soars-ever-higher/34036
Interoperability between Swift and C++: https://forums.swift.org/t/manifesto-interoperability-between-swift-and-c/33874
Swift playgrounds for mac: https://apps.apple.com/us/app/swift-playgrounds/id1496833156?mt=12
Swift crypto: https://swift.org/blog/crypto/
Standard Library Preview Package: https://swift.org/blog/preview-package/
Update on SE-0110 and SE-0155: https://forums.swift.org/t/update-on-se-0110-and-se-0155/33948

🙏 Thanks to today's sponsor: Square Check out the tutorial for Square’s In-App Payments SDK for iOS on their new developer YouTube channel: youtube.com/squaredev

👋 Get in Touch We are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.

🖤 Leave A Review If you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.

Head over to our iTunes page to share your opinion of the show!

Magic file names: https://github.com/apple/swift-evolution/blob/master/proposals/0274-magic-file.md
Multi-pattern catch clauses
- https://github.com/apple/swift-evolution/blob/master/proposals/0276-multi-pattern-catch-clauses.md
- https://forums.swift.org/t/se-0276-multi-pattern-catch-clauses/32620
Road to Swift 6: https://forums.swift.org/t/on-the-road-to-swift-6/32862

👋 Get in Touch We are @swift_unwrapped on twitter. Follow us, ask us a question, let us know what you think of the show! If you want to follow us individually, we're @jesse_squires and @simjp.

🖤 Leave A Review If you're enjoying the show. The best and easiest way to show your support is by heading over to iTunes and leaving us a review! Not only do you let us know what you like about the show, but you're also helping other Swift language folks find the show.

Head over to our iTunes page to share your opinion of the show!

Forum post
Functional Swift conference talk
Coroutine explanation by John McCall

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

The way Swift reports compilation diagnostics like errors, warnings and fixits is about to improve in Swift 5.2.

Blog post
Forum discussion

Thanks to this episode's Sponsors Vettery Vettery is an online hiring marketplace that's changing the way people hire and get hired. Make a free profile, name your salary, and connect with hiring managers from top employers today.

Listeners of Swift Unwrapped can sign up on vettery.com/swiftunwrapped and get a $300 bonus if they accept a job through Vettery.

Square Check out the new Square YouTube channel for developers. Square has SDKs and APIs to make payments and run a business.

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Would you like some Swift in your Swift? The compiler driver is getting a shiny new implementation in Swift and there's no shortage of opportunities to contribute.

Forum discussion
Project on GitHub

Thanks to this episode's Sponsors Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Vettery Vettery is an online hiring marketplace that's changing the way people hire and get hired. Make a free profile, name your salary, and connect with hiring managers from top employers today.

Listeners of Swift Unwrapped can sign up on vettery.com/swiftunwrapped and get a $300 bonus if they accept a job through Vettery.

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

The Swift of tomorrow... today! The Standard Library Preview Package would allow you to try out upcoming Swift features before they officially ship with new language versions.

Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0264-stdlib-preview-package.md
Forum: https://forums.swift.org/t/pitch-standard-library-preview-package/27202
Babeljs: https://babeljs.io
SE-0220: https://github.com/apple/swift-evolution/blob/master/proposals/0220-count-where.md
How to Read the Swift Standard Library Source: https://oleb.net/blog/2016/10/swift-stdlib-source/

Thanks to this episode's Sponsors Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Burritos: https://github.com/guillermomuntaner/Burritos
SE-0260 Library Evolution: https://github.com/apple/swift-evolution/blob/master/proposals/0260-library-evolution.md
SE-0030 Property Behaviors: https://github.com/apple/swift-evolution/blob/master/proposals/0030-property-behavior-decls.md
SE-0258 Property Wrappers: https://github.com/apple/swift-evolution/blob/master/proposals/0258-property-wrappers.md
Function Builders: https://forums.swift.org/t/function-builders/25167
SE-0244 Opaque Result Types: https://github.com/apple/swift-evolution/blob/master/proposals/0244-opaque-result-types.md
SE-0255 Implicit returns from single-expression functions: https://github.com/apple/swift-evolution/blob/master/proposals/0255-omit-return.md
SwiftUI: https://developer.apple.com/xcode/swiftui/

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Forum pitch: https://forums.swift.org/t/pitch-support-for-binary-dependencies/27620
Swift ABI Stability: https://swift.org/blog/abi-stability-and-more/
Library Evolution for Stable ABIs: https://github.com/apple/swift-evolution/blob/master/proposals/0260-library-evolution.md

Thanks to this episode's Sponsors Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Proposal SE-0246
Exploring Swift's Numeric Types and Protocols
Proposal SE-0259
Proposal SE-0233

Thanks to this episode's Sponsors Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Instabug Squash bugs in less than a minute with Instabug. Get a 14-days trial and their brand new t-shirt once you signup and integrate Instabug in your app.

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Proposal SE-0258
Review threads:
- First review
- Second review
- Third review
Blog post by Vincent Padreilles on using property wrappers
Blog post by John Sundell on The Swift 5.1 features that power SwiftUI’s API
Originally pitched in the Swift forums as "Property Behaviors" in 2015-2016
NSHipster article

Thanks to this episode's Sponsors Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Instabug Squash bugs in less than a minute with Instabug. Get a 14-days trial and their brand new t-shirt once you signup and integrate Instabug in your app.

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Links * XcodeGen * Announcing Swift support in CMake * Buck * Bazel * Bazel's Apple platform rules * llbuild

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at https://www.sentry.io/for/swift

Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Relevant Links * SE-0255: Implicit returns from single-expression functions + Tweet from Ben Cohen + Swift Forums Acceptance Post * SE-0257: Eliding commas from multiline expression lists * Swift Mint

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at https://www.sentry.io/for/swift

Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Relevant Links * UTF-8 String blog post on swift.org * Piercing the String Veil post on Swift forums * SE-241 Deprecate String Index Encoded Offsets * SR-9749: The bug that led to deprecating encodedOffset

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at https://www.sentry.io/for/swift

Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Relevant Links * Swift Forums Pitch: an Official Style Guide and Formatter for Swift * Swift Evolution PR #994 * swift-format implementation * Community Tools + SwiftLint + SwiftFormat

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at https://www.sentry.io/for/swift

Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Relevant Links * Key Path Expressions as Functions: https://forums.swift.org/t/key-path-expressions-as-functions/19587 * Implementation: https://github.com/apple/swift/pull/19448 * Previous discussion threads: + https://forums.swift.org/t/allow-key-path-literal-syntax-in-expressions-expecting-function-type/16453 + https://forums.swift.org/t/key-path-getter-promotion/11185 + https://forums.swift.org/t/pitch-keypath-based-map-flatmap-filter/6266 * Original "Smart Key Path" proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0161-key-paths.md * Kuery: https://github.com/kishikawakatsumi/Kuery

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at https://www.sentry.io/for/swift

Instabug With Instabug, your users and beta testers now can submit thorough feedback from your app by just shaking the phone, they will be able to take a screenshot and send their feedback easily.

You will receive a t-shirt with their motto 'I squash bugs for a living' if you go to instabug.com/swift, signup, and integrate the SDK.

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at spectrum.chat/specfm/swift-unwrapped

Relevant Links * Announcement Post on Swift Forums * Open Sourcing Post on Swift Forums * GitHub Repository: apple/sourcekit-lsp * NSHipster article on Swift Development with Visual Studio Code using SourceKit-LSP * Language Server Protocol Website

Thanks to this episode's Sponsors Sentry.io Sentry tells you about errors in your code before your customers have a chance to encounter them.

With Sentry, you’ll see exactly how many users have been impacted by a bug, the stack trace, the commit that the error was released as part of, the engineer who wrote the line of code that is currently busted, and a lot more.

Give it a try and let them know we sent you at: https://www.sentry.io/for/swift

Clubhouse.io Clubhouse is the first project management platform for software development that brings everyone together so that teams can focus on what matters – creating products their customers love.

With a simple API and robust set of integrations, Clubhouse seamlessly integrates with the tools you use every day, getting out of your way so that you can deliver quality software on time.

Listeners of Swift Unwrapped can sign up for two free months of Clubhouse by visiting https://clubhouse.io/swiftunwrapped

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Proposal
Forums review phase one
Forums review phase two

* Implementation * Railway Oriented Programming

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https://forums.swift.org/t/opaque-result-types/15645
LazyMapCollection: https://cocoacasts.com/what-is-a-lazymapcollection-in-swift

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Thank you to Instabug for sponsoring this episode! Instabug is the simplest yet most comprehensive bug reporting and In-app feedback SDK. JP uses it at Lyft and it's proven to be a critical tool!

Now, Swift Unwrapped listeners will get a free t-shirt when they sign up at https://instabug.com/swift.

SE-0200 Enhancing String Literals Delimiters to Support Raw Text
Paul Hudson’s What’s New in Swift 5 Playground
Discussion thread
Announcement thread
Implementation

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Thank you to Instabug for sponsoring this episode! Instabug is the simplest yet most comprehensive bug reporting and In-app feedback SDK. JP uses it at Lyft and it's proven to be a critical tool!

Now, Swift Unwrapped listeners will get a free t-shirt when they sign up at https://instabug.com/swift.

https://forums.swift.org/t/plan-for-module-stability/14551

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Thank you to Instabug for sponsoring this episode! Instabug is the simplest yet most comprehensive bug reporting and In-app feedback SDK. JP uses it at Lyft and it's proven to be a critical tool!

Now, Swift Unwrapped listeners will get a free t-shirt when they sign up at https://instabug.com/swift.

SE-0213: Literal initialization via coercion
Implementation (apple/swift#15311)
Swift evolution thread

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Never & absurd(): https://twitter.com/pteasima/status/978325590397906944
Point Free Episode #9 Algebraic Data Types: Exponents – https://www.pointfree.co/episodes/ep9-algebraic-data-types-exponents
https://twitter.com/pointfreeco
https://github.com/apple/swift-evolution/blob/master/proposals/0215-conform-never-to-hashable-and-equatable.md

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Data Structures and Algorithms in Swift: https://store.raywenderlich.com/products/data-structures-and-algorithms-in-swift
Swift Algorithm Club: https://github.com/raywenderlich/swift-algorithm-club
Ben Cohen on Sorted collections: https://bugs.swift.org/browse/SR-6865
Linked list proposal: https://forums.swift.org/t/proposal-singly-and-doubly-linked-list-collections-in-standard-library/11426

Twitter:

Kelvin Lau: https://twitter.com/KelvinlauKl
Vincent Ngo: https://twitter.com/VincentNgo2

Ted Kremenek on Twitter: https://twitter.com/tkremenek
Swift Evolution Dashboard of proposals implemented in Swift 4.2: https://apple.github.io/swift-evolution/#?version=4.2
Swift ABI Dashboard: https://swift.org/abi-stability/
ABI Stability Manifesto: https://github.com/apple/swift/blob/master/docs/ABIStabilityManifesto.md
Ole Begemann's "What's new in Swift 4.2" playground: https://github.com/ole/whats-new-in-swift-4-2

This episode is a little different, where we discuss general announcements from WWDC 2018 not just limited to the Swift language. With special guest Greg Heo.

Keynote: https://www.apple.com/apple-events/june-2018/
Platforms State of the Union: https://developer.apple.com/videos/play/wwdc2018/102/
https://www.apple.com/newsroom/2018/06/apple-previews-ios-12/
https://www.apple.com/newsroom/2018/06/apple-introduces-macos-mojave/
https://www.apple.com/newsroom/2018/06/watchos-5-adds-powerful-activity-and-communications-features-to-apple-watch/
Patrick Balestra's ARKit 1.0 measurement app: https://www.youtube.com/watch?v=z7DYC_zbZCM
https://twitter.com/gregheo
https://swiftunboxed.com

Forums:

https://forums.swift.org/t/pitch-character-and-string-properties/11620
https://forums.swift.org/t/adding-unicode-properties-to-unicodescalar-character/9310

Pull requests:

https://github.com/apple/swift/pull/15880
https://github.com/apple/swift-evolution/pull/847

Proposals:

https://gist.github.com/milseman/c8c50ed0eef0a21181b0d4eeedbad819
https://github.com/apple/swift-evolution/blob/master/proposals/0211-unicode-scalar-properties.md

Links * Forums: https://forums.swift.org/t/implicit-escaping-of-closures-via-objective-c/12025 * SE-0103 Make non-escaping closures the default: https://github.com/apple/swift-evolution/blob/master/proposals/0103-make-noescape-default.md * Escaping closures explained: https://swiftunboxed.com/lang/closures-escaping-noescape-swift3/ * Footgun tweet: https://twitter.com/dgregor79/status/987173055909715968

Thank you to Instabug for sponsoring this episode! Instabug is the simplest yet most comprehensive bug reporting and In-app feedback SDK. JP uses it at Lyft and it's helped him out a bunch!

Now, Swift Unwrapped listeners will get a 20% discount on all paid plans, use promo-code: unwrapped2018

Check them out, use that promo code and get 20% off at https://instabug.com/swift

Blog post on Reimplementation of Implicitly Unwrapped Optionals: https://swift.org/blog/iuo
SE-0054 Abolish ImplicitlyUnwrappedOptional type: https://github.com/apple/swift-evolution/blob/master/proposals/0054-abolish-iuo.md

Thank you to Instabug for sponsoring this episode! Instabug is the simplest yet most comprehensive bug reporting and In-app feedback SDK. JP uses it at Lyft and it's helped him out a bunch!

Now, Swift Unwrapped listeners will get a 20% discount on all paid plans, use promo-code: unwrapped2018

Check them out, use that promo code and get 20% off at https://instabug.com/swift

Thanks Instabug!

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

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https://github.com/tensorflow/swift/blob/master/docs/DesignOverview.md
https://twitter.com/chriseidhof/status/989736679417171968
https://twitter.com/chriseidhof/status/989573435968966658
https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d
https://forums.swift.org/t/pitch-3-introduce-user-defined-dynamically-callable-types/12232
https://www.tensorflow.org/
https://youtu.be/Yze693W4MaU
https://groups.google.com/a/tensorflow.org/forum/#!topic/swift/xtXCEvtDe5Q
https://www.tensorflow.org/community/swift
https://twitter.com/clattner_llvm/status/979886581371740160

Thank you to Bitrise.io for sponsoring this episode! Bitrise is Mobile Continuous Integration and Delivery for your whole team, with dozens of integrations for your favourite services. Be sure to check out their new iOS Auto Provision step for your Xcode projects.

Check them out and let them know we sent you at Bitrise.io

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

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Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0206-hashable-enhancements.md
Swift Evolution review thread & acceptance post: https://forums.swift.org/t/accepted-se-0206-hashable-enhancements/11675/115

Thank you to Bitrise.io for sponsoring this episode! Bitrise is Mobile Continuous Integration and Delivery for your whole team, with dozens of integrations for your favourite services. Be sure to check out their new iOS Auto Provision step for your Xcode projects.

Check them out and let them know we sent you at Bitrise.io

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0202-random-unification.md
Swift Evolution thread: https://forums.swift.org/t/proposal-random-unification/6626
Implementation: https://github.com/apple/swift/pull/12772
Acceptance post: https://forums.swift.org/t/accepted-se-020-random-unification/12040

Thank you to Bitrise.io for sponsoring this episode! Bitrise is Mobile Continuous Integration and Delivery for your whole team, with dozens of integrations for your favourite services. Be sure to check out their new iOS Auto Provision step for your Xcode projects.

Check them out and let them know we sent you at Bitrise.io

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

https://github.com/apple/swift-evolution/blob/master/proposals/0197-remove-where.md
https://github.com/apple/swift-evolution/blob/master/proposals/0203-rename-sequence-elements-equal.md
https://github.com/apple/swift-evolution/blob/master/proposals/0204-add-last-methods.md

Thank you to Bitrise.io for sponsoring this episode! Bitrise is Mobile Continuous Integration and Delivery for your whole team, with dozens of integrations for your favourite services. Be sure to check out their new iOS Auto Provision step for your Xcode projects.

Check them out and let them know we sent you at Bitrise.io

Get in Touch If you're enjoying the show and want to say thank you, the best way to do that is by leaving us a review on iTunes! It lets us know what you think of the show and helps us climb the charts so other people can find the show.

We've also got a channel set up on Spectrum.chat! If you want to talk about today's episode, ask us a question or just follow the conversation, jump in anytime at: spectrum.chat/specfm/swift-unwrapped

https://www.tensorflow.org/
https://youtu.be/Yze693W4MaU
https://groups.google.com/a/tensorflow.org/forum/#!topic/swift/xtXCEvtDe5Q
https://www.tensorflow.org/community/swift
https://twitter.com/clattner_llvm/status/979886581371740160

Thank you to Bitrise.io for sponsoring this episode! Bitrise is Mobile Continuous Integration and Delivery for your whole team, with dozens of integrations for your favourite services. Be sure to check out their new iOS Auto Provision step for your Xcode projects.

Check them out and let them know we sent you at Bitrise.io

We cover two recent Swift Package Manager proposal pitches.

https://forums.swift.org/t/package-manager-extensible-build-tools/10900
https://forums.swift.org/t/package-manager-workspace/10667

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Thank You Thanks to this episode's sponsor, Kobiton. Go to Kobiton.com/swift and get your extra trial minutes!

Conditional conformance: https://swift.org/blog/conditional-conformance/
Generics manifesto: https://github.com/apple/swift/blob/master/docs/GenericsManifesto.md
SE-143: https://github.com/apple/swift-evolution/blob/master/proposals/0143-conditional-conformances.md
All 4.1 proposals: https://apple.github.io/swift-evolution/#?version=4.1
4.1 code size optimizations: https://swift.org/blog/osize/
Swift 4.1 release process: https://swift.org/blog/swift-4-1-release-process/
Xcode 9.3 beta 4 release notes with a more comprehensive list of what's included in Swift 4.1: https://download.developer.apple.com/Developer_Tools/Xcode_9.3_beta_4/Release_Notes_for_Xcode_9.3_beta_4.pdf

Please leave a review on iTunes and join the conversation at http://spectrum.chat/specfm/swift-unwrapped

Conditional conformance: https://swift.org/blog/conditional-conformance/
Generics manifesto: https://github.com/apple/swift/blob/master/docs/GenericsManifesto.md
SE-143: https://github.com/apple/swift-evolution/blob/master/proposals/0143-conditional-conformances.md
All 4.1 proposals: https://apple.github.io/swift-evolution/#?version=4.1
4.1 code size optimizations: https://swift.org/blog/osize/
Swift 4.1 release process: https://swift.org/blog/swift-4-1-release-process/
Xcode 9.3 beta 4 release notes with a more comprehensive list of what's included in Swift 4.1: https://download.developer.apple.com/Developer_Tools/Xcode_9.3_beta_4/Release_Notes_for_Xcode_9.3_beta_4.pdf

Please leave a review on iTunes and join the conversation at http://spectrum.chat/specfm/swift-unwrapped

In Today's episode we share thoughts on Dave DeLong's "protocol wishlist" for Swift and other ideas for improving Swift's protocols.

Blogpost: https://davedelong.com/blog/2018/02/08/swift-protocols-wishlist/
Tweet thread around blog post: https://twitter.com/davedelong/status/961745088668868608
Dave DeLong on Twitter: https://twitter.com/davedelong

Announcement on Swift Forums: https://forums.swift.org/t/swift-to-participate-in-gsoc-2018/10147
Project Ideas: https://swift.org/project-ideas/
Summer of Code: https://summerofcode.withgoogle.com/
Csmith: https://embed.cs.utah.edu/csmith/
@PracticalSwift crasher PRs: https://github.com/apple/swift/pulls?q=is%3Apr+author%3Apracticalswift+is%3Aclosed

Forum discussion: http://forums.swift.org/t/se-0198-playground-quicklook-api-revamp/9448
Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0198-playground-quicklook-api-revamp.md
Enabling Quick Look for Custom Types: https://developer.apple.com/library/content/documentation/IDEs/Conceptual/CustomClassDisplay_in_QuickLook/CH01-quick_look_for_custom_objects/CH01-quick_look_for_custom_objects.html
Playground Support library: https://developer.apple.com/documentation/playgroundsupport

Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0189-restrict-cross-module-struct-initializers.md
Implementation: https://github.com/apple/swift/pull/12834
Forum accepted announcement: http://forums.swift.org/t/accepted-se-0189-restrict-cross-module-struct-initializers/7164
Mailing list discussion: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20171120/041478.html

Sequence.split should have a Lazy equivalent: SR-6691
Conditional conformance swift.org blog post: https://swift.org/blog/conditional-conformance
Enforce 16-bit limit for # of function parameters, # of tuple type element: SR-6736
Xcode 9.3 beta 1: https://developer.apple.com/news/releases/?id=01242018a
Swift Playgrounds 2.0 for iPad:
- release post
- App Store
- subscriptions
Support for fallthrough into cases with pattern variables: https://github.com/apple/swift/pull/14041
Compiler crash fix: https://github.com/apple/swift/pull/14102
Non-exhaustive enums: SE-0192
Derived Collection of Enum Cases: SE-0194
Introduce User-defined “Dynamic Member Lookup” Types: SE-0195
Compiler Diagnostic Directives: SE-0196
Adding toggle to Bool: forums discussion

Please leave a review on iTunes and join the conversation at http://spectrum.chat/specfm/swift-unwrapped

https://www.jessesquires.com/blog/swift-weekly-brief-hiatus/
https://swiftweekly.github.io/issue-101/

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State of String: ABI, Performance, Ergonomics, and You! https://gist.github.com/milseman/bb39ef7f170641ae52c13600a512782f
https://twitter.com/Ilseman/status/951181851229483008
String Manifesto: https://github.com/apple/swift/blob/master/docs/StringManifesto.md

Please leave a review on iTunes and join the conversation at http://spectrum.chat/specfm/swift-unwrapped

Swift 4.1 will include support for conditional protocol conformance, and we're excited to use it!

https://swift.org/blog/conditional-conformance/
https://github.com/apple/swift/blob/master/docs/GenericsManifesto.md
https://twitter.com/dgregor79/status/936353445530910720
https://twitter.com/AirspeedSwift/status/936294841016762368
https://twitter.com/AirspeedSwift/status/936289022766333952
https://twitter.com/AirspeedSwift/status/936281530552401920
https://twitter.com/simjp/status/950452640915140609

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Graydon Hoare’s swift-dev email: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20171113/006001.html
Compiler Performance doc: https://github.com/apple/swift/blob/master/docs/CompilerPerformance.md
Brian Gesiak's swift-dev email: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20171106/005934.html

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Introduce User-defined "Dynamic Member Lookup" Types:
- First version: https://github.com/apple/swift-evolution/pull/768
- Second version: https://github.com/apple/swift-evolution/pull/774
Implementations:
- First version: https://github.com/apple/swift/pull/13076
- Second version: https://github.com/apple/swift/pull/13361
Related "dynamic callable" proposal (gist in progress): https://gist.github.com/lattner/a6257f425f55fe39fd6ac7a2354d693d
Chris’s email to Swift Evolution: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20171113/041463.html

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https://bugs.swift.org/browse/SR-4981
https://github.com/apple/swift-source-compat-suite/blob/master/projects.json
https://swift.org/source-compatibility
Questions about expectations from swift source compatibility maintainers: https://github.com/apple/swift-source-compat-suite/pull/98

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Enable core dumps: ulimit -c unlimited
Mutating functions require exclusive access:
- https://twitter.com/simjp/status/928714602937905153
- "Calling a mutating method on a value type is a write access that lasts for the duration of the method."
- https://github.com/apple/swift-evolution/blob/master/proposals/0176-enforce-exclusive-access-to-memory.md#proposed-solution
TSan with SwiftPM: https://twitter.com/simjp/status/929140877540278272
Running TSan on CI: https://github.com/realm/SwiftLint/pull/1944
WIP Adding first-party support for tsan to SwiftPM: https://github.com/apple/swift-package-manager/pull/1390
SwiftPM Slack: https://swift-package-manager.herokuapp.com/

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Original proposal: https://github.com/apple/swift-evolution/pull/114
Latest email: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20171106/040950.html
Reply: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20171106/040951.html
Jordan Rose on over-abstraction: http://belkadan.com/blog/2017/09/Over-abstraction/

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Float80 Corrections: https://mobile.twitter.com/daniel_dunbar/status/923694549238611970
Why the Swift Server Working Group's http library doesn't have an Xcode project: https://mobile.twitter.com/daniel_dunbar/status/923691076635914240
SE-0186 Removing ownership keywords in protocols: https://github.com/apple/swift-evolution/blob/master/proposals/0186-remove-ownership-keyword-support-in-protocols.md
Either/Result type
- https://github.com/apple/swift-evolution/pull/757
- https://twitter.com/slava_pestov/status/925133908835835904

JP's FrenchKit talk on "Performance Profiling Swift on Linux":
- Video: https://youtu.be/TWeLLTFjqXg
- Slides: https://speakerdeck.com/jpsim/performance-profiling-swift-on-linux
Perf
Valgrind
Callgrind
GNU gprof
KCachegrind
FlameGraph
gprof2dot

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https://www.jessesquires.com/blog/floating-point-swift-ulp-and-epsilon/
https://speakerdeck.com/jessesquires/exploring-swifts-numeric-types-and-protocols
SE-0104: Protocol-oriented integers
SE-0113: Add integral rounding functions to FloatingPoint
SE-0067: Enhanced Floating Point Protocols

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Server APIs Project: https://swift.org/server-apis/
Server APIs Working Group: https://swift.org/blog/server-api-workgroup/
HTTP 0.1.0:
- https://github.com/swift-server/http/releases/tag/0.1.0
- Docs: https://swift-server.github.io/http/
Namespacing discussion:
- https://lists.swift.org/pipermail/swift-server-dev/Week-of-Mon-20170522/000466.html
- https://github.com/swift-server/http/pull/7
Can file issues on the repo, no JIRA
Dedicated GitHub org: https://github.com/swift-server
Which web framework is the fastest? https://github.com/swift-server/which_is_the_fastest
Wraps a C HTTP parsing library from Node.js & NGINX: https://github.com/swift-server/http/blob/0.1.0/Sources/CHTTPParser/http_parser.c#L1-L23
Modular Swift Proposal: https://gist.github.com/CodaFi/cd66b7d70b5cd8e4e8b433fa2ace378a

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https://swift.org/migration-guide-swift4/
Using two Swift Package Manager manifest files:
- https://github.com/realm/SwiftLint/blob/0.23.0/Package.swift
- https://github.com/realm/SwiftLint/blob/0.23.0/Package%40swift-4.swift

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Measuring Swift compile times in Xcode 9: https://www.jessesquires.com/blog/measuring-compile-times-xcode9/
Profiling your Swift compilation times: http://irace.me/swift-profiling
Guarding Against Long Compiles: http://khanlou.com/2016/12/guarding-against-long-compiles/
Type checker performance tests:
- Directory: https://github.com/apple/swift/tree/master/validation-test/Sema/type_checker_perf
- PR: https://github.com/apple/swift/pull/11494
Mailing list discussions:
- Ben Asher: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20161003/003099.html
- Mark Lacy: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20161003/003110.html

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Thanks to BuddyBuild for sponsoring this episode!

If you're ready for free a continuous integration, continuous deployment, and user feedback platform for iOS and Android development teams - give them a try at buddybuild.com and let them know we sent you!

Friday Q&A:

https://mikeash.com/pyblog/friday-qa-2017-09-22-swift-4-weak-references.html

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https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2

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http://spectrum.chat/specfm/swift-unwrapped

iPhone X keynote + GM seeds for Xcode 9, Swift 4
Synthesizing Equatable and Hashable: https://github.com/apple/swift-evolution/blob/master/proposals/0185-synthesize-equatable-hashable.md
Sourcery: https://github.com/krzysztofzablocki/Sourcery
Improved pointers: https://github.com/apple/swift-evolution/blob/master/proposals/0184-unsafe-pointers-add-missing.md
Notes from Ted Kremenek
LibDispatch correction: https://twitter.com/pedantcoder/status/904951873483956225

Swift.org blog post on Swift Local Refactoring: https://swift.org/blog/swift-local-refactoring/
Clang-based refactoring engine: http://lists.llvm.org/pipermail/cfe-dev/2017-June/054286.html
Adding indexing support to Clangd: http://lists.llvm.org/pipermail/cfe-dev/2017-May/053869.html
Small PR demonstrating implementing a refactoring action to simplify long number literal format:
- https://github.com/apple/swift/pull/11711
- SR-5746: https://bugs.swift.org/browse/SR-5746
All Swift refactoring actions are defined in https://github.com/apple/swift/blob/master/include/swift/IDE/RefactoringKinds.def
Ideas for potential refactoring transformations: https://bugs.swift.org/issues/?jql=labels%3DStarterProposal%20AND%20labels%3DRefactoring%20AND%20resolution%3DUnresolved

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Thanks to BuddyBuild for sponsoring this episode: https://www.buddybuild.com/?utm_source=podcast&utm_medium=banner&utm_campaign=swift_unwrapped&utm_term=swift%20unwrapped

Please take a minute to leave a review on iTunes and join us on Spectrum chat if you'd like to discuss the show.

Concurrency manifesto: https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782
Tweet from Chris: https://twitter.com/clattner_llvm/status/898310296183357441
Ted Kremenek's email: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170814/038891.html
Chris's email: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170814/038892.html
Async/Await proposal: https://gist.github.com/lattner/429b9070918248274f25b714dcfc7619
Async/Await prototype pull request: https://github.com/apple/swift/pull/11501
Old doc on concurrency: https://github.com/apple/swift/blob/master/docs/proposals/Concurrency.rst

Mailing List: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170807/038645.html
Swift Evolution Readme: https://github.com/apple/swift-evolution/blob/master/README.md

Please take a minute to leave a review on iTunes (https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203) and join us on http://spectrum.chat/specfm/swift-unwrapped if you'd like to discuss the show.

ABI Stability Manifesto: https://github.com/apple/swift/blob/master/docs/ABIStabilityManifesto.md
ABI Dashboard: https://swift.org/abi-stability
ABI Docs: https://github.com/apple/swift/tree/master/docs/ABI

Please take a minute to leave a review on iTunes (https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203) and join us on http://spectrum.chat/specfm/swift-unwrapped if you'd like to discuss the show.

Twitter thread on source stability discussion for episode 22: https://twitter.com/swift_unwrapped/status/892023116377075712
ABI Stability Manifesto: https://github.com/apple/swift/blob/master/docs/ABIStabilityManifesto.md
ABI Dashboard: https://swift.org/abi-stability
ABI Docs: https://github.com/apple/swift/tree/master/docs/ABI
Mike Ash & Gwynne Raskind Friday Q&A 2014-08-08: Swift Name Mangling: https://mikeash.com/pyblog/friday-qa-2014-08-15-swift-name-mangling.html

Please take a minute to leave a review on iTunes (https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203) and join us on http://spectrum.chat/specfm/swift-unwrapped if you'd like to discuss the show.

ABI Stability Manifesto: https://github.com/apple/swift/blob/master/docs/ABIStabilityManifesto.md
ABI Dashboard: https://swift.org/abi-stability
ABI Docs: https://github.com/apple/swift/tree/master/docs/ABI

Swift memory layout (Mike Ash):

Talk: https://news.realm.io/news/goto-mike-ash-exploring-swift-memory-layout/
Part 1: https://mikeash.com/pyblog/friday-qa-2014-07-18-exploring-swift-memory-layout.html
Part 2: https://www.mikeash.com/pyblog/friday-qa-2014-08-01-exploring-swift-memory-layout-part-ii.html

Please take a minute to leave a review on iTunes (https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203) and join us on http://spectrum.chat/specfm/swift-unwrapped if you'd like to discuss the show.

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ABI Stability Manifesto: https://github.com/apple/swift/blob/master/docs/ABIStabilityManifesto.md
ABI Dashboard: https://swift.org/abi-stability
ABI Docs: https://github.com/apple/swift/blob/master/docs/ABI.rst

Bug of the week (sandboxing!): SR-549, SR-5061
String newline escaping: SE-0182
Substring perf: SE-0183
String index overhaul: SE-0180
SPM c++ support: SE-0181

Bug of the week: https://bugs.swift.org/browse/SR-4088
Ted’s email: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20170605/004751.html
Migrator: https://github.com/apple/swift/tree/master/lib/Migrator
Migrating to Swift 4: https://swift.org/migration-guide/, https://help.apple.com/xcode/mac/current/#/deve838b19a1

Improvement of the week: https://github.com/apple/swift-package-manager/pull/1249
Ted’s email: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20170605/004751.html
Panel: https://news.realm.io/news/wwdc-2017-swift-panel/
Xcode 9b2 release notes: http://adcdownload.apple.com/Developer_Tools/Xcode_9_beta_2/Release_Notes_for_Xcode_9_beta_2.pdf
Ole Begemman’s panel highlights: https://oleb.net/blog/2017/06/chris-lattner-wwdc-swift-panel/

SipHash: https://github.com/lorentey/SipHash
CryptoSwift: https://github.com/krzyzanowskim/CryptoSwift
Result: https://github.com/antitypical/Result
Commander: https://github.com/kylef/Commander
SwiftyGPIO: https://github.com/uraimo/SwiftyGPIO
Stencil: https://github.com/kylef/Stencil
Sourcery: https://github.com/krzysztofzablocki/Sourcery
SWXMLHash: https://github.com/drmohundro/SWXMLHash
YamlSwift: https://github.com/behrang/YamlSwift
Yams: https://github.com/jpsim/Yams
swift-lsp (in progress): https://github.com/owensd/swift-lsp

Testing Swift: https://github.com/apple/swift/blob/master/docs/Testing.rst
Lit: LLVM Integrated Tester: http://llvm.org/docs/CommandGuide/lit.html
SwiftCI:
- https://ci.swift.org
- Announcement: https://swift.org/blog/swift-ci/
- Overview: https://swift.org/continuous-integration/
- Docs: https://github.com/apple/swift/blob/master/docs/ContinuousIntegration.md
Source Compatibility: https://github.com/apple/swift-source-compat-suite
Smoke Testing
Validation Testing
Benchmarking
Lint Testing
Source Compatibility Testing
Testing SIL
Swift compile time measurement: http://irace.me/swift-profiling/

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Error Handling: https://github.com/apple/swift/blob/master/docs/ErrorHandling.rst
Rationale and Proposal: https://github.com/apple/swift/blob/master/docs/ErrorHandlingRationale.rst
Swift 2.0 blog post: https://developer.apple.com/swift/blog/?id=29
Cocoa error handling: https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ErrorHandlingCocoa/ErrorHandling/ErrorHandling.html
Typed throws vs not discussed in Swift Weekly Brief #68 and #51

What should you expect with Swift 4? Some great new features and improvements.

Ole's Swift 4 playground: https://oleb.net/blog/2017/05/whats-new-in-swift-4-playground/
Swift Evolution Proposal SE-0165: Dictionary and Set Enhancements
Swift Evolution Proposal SE-0173: Add MutableCollection.swapAt(_:_:)
Swift Evolution Proposal SE-0176: Enforce Exclusive Access to Memory
Swift Evolution Proposal SE-0171: Reduce with inout
Swift Evolution Proposal SE-0148: Generic Subscripts
Swift Evolution Proposal SE-0170: NSNumber bridging and Numeric types
Swift Evolution Proposal SE-0156: Class and Subtype existentials

What should you expect with Swift 4? Some great new features and improvements.

Ole's Swift 4 playground: https://oleb.net/blog/2017/05/whats-new-in-swift-4-playground/
Swift Evolution Proposal SE-0172: One-sided Ranges
Swift Evolution Proposal SE-0168: Multi-Line String Literals
Swift Evolution Proposal SE-0163: String Revision: Collection Conformance, C Interop, Transcoding
Swift Evolution Proposal SE-0178: Add unicodeScalars property to Character
Swift Evolution Proposal SE-0169: Improve Interaction Between private Declarations and Extensions
Swift Evolution Proposal SE-0161: Smart KeyPaths: Better Key-Value Coding for Swift
Swift Evolution Proposal SE-0166: Swift Archival & Serialization
Swift Evolution Proposal SE-0167: Swift Encoders

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SwiftPM iOS
- SwiftPM Cross-Compilation: https://github.com/apple/swift-package-manager/pull/1098
SwiftPM Xcode
- Better SwiftPM/Xcode integration: https://twitter.com/SmileyKeith/status/862444840008548352
- Potential Package.swift support in Xcode
Swift Refactoring in Xcode
- References to "Rename" actions in SourceKit from Xcode 8.3 https://twitter.com/simjp/status/848288462952316928
- Swift Syntax Structured Editing Library: https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20170206/004066.html
Improvements to Swift Playgrounds on iPad
Likely improvements to Xcode Source Extensions (refactoring extensions?)
We’re in a quiet period leading up to WWDC

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Moving to Discourse, email from Ted: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170206/031657.html
Nate Cook's Discourse experiment: http://discourse.natecook.com/
Slava tweets:
- https://twitter.com/slava_pestov/status/854490613575700480
- https://twitter.com/slava_pestov/status/857382737669271552

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Manifesto: https://github.com/apple/swift/blob/master/docs/OwnershipManifesto.md
TL;DR: https://gist.github.com/Gankro/1f79fbf2a9776302a9d4c8c0097cc40e
Graydon Hoare, Swift team member, creator of Rust: https://en.wikipedia.org/wiki/Rust_(programming_language)
Some work has already landed to enforce exclusivity in Swift 4:
- https://github.com/apple/swift/pull/9373
- https://github.com/apple/swift/pull/9198
- https://github.com/apple/swift/pull/9112

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SE-0168: Multi-line strings * Proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0168-multi-line-string-literals.md * John Holdsworth (Injection4Xcode): https://twitter.com/Injection4Xcode * Took just over 12 months to land: https://github.com/apple/swift/pull/2275 * Final PR: https://github.com/apple/swift/pull/8813 * Starter Bugs to improve diagnostics: https://bugs.swift.org/browse/SR-4701 * Approval Post: https://lists.swift.org/pipermail/swift-evolution-announce/2017-April/000360.html * Multi-line string literals in Objective-C: http://stackoverflow.com/questions/797318/how-to-split-a-string-literal-across-multiple-lines-in-c-objective-c

SE-0171: Reduce with inout

https://github.com/apple/swift-evolution/blob/master/proposals/0171-reduce-with-inout.md
Rationale: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170424/036126.html

SE-0172: One-Sided Ranges * https://github.com/apple/swift-evolution/blob/master/proposals/0172-one-sided-ranges.md * Rationale: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170424/036125.html

Source Compatibility suite * Announcement: https://swift.org/blog/swift-source-compatibility-test-suite/ * Swift Source Compatibility Suite: https://github.com/apple/swift-source-compat-suite

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String Manifesto: https://github.com/apple/swift/blob/master/docs/StringManifesto.md
Chris Lattner on Swift 4 goals including String re-evaluation: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160725/025676.html
Ole Begemann:
- Why String.CharacterView is not a MutableCollection: https://oleb.net/blog/2017/02/why-is-string-characterview-not-a-mutablecollection/
- One for the Unicode Nerds: https://oleb.net/blog/2014/06/one-for-the-unicode-nerds/
Objc.io article on unicode: https://www.objc.io/issues/9-strings/unicode/
Unsafe API proposal: https://github.com/apple/swift/pull/7479
SipHash:
- https://github.com/apple/swift/blob/master/stdlib/public/core/SipHash.swift.gyb
- https://github.com/apple/swift/pull/4621

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SE-0166: Swift Archival & Serialization * NSCoding: + https://developer.apple.com/reference/foundation/nscoding + http://nshipster.com/nscoding/ * Swift Archival & Serialization: https://github.com/apple/swift-evolution/blob/master/proposals/0166-swift-archival-serialization.md * ABI Stability Dashboard: https://swift.org/abi-stability/

SE-0167: Swift Encoders * https://github.com/apple/swift-evolution/blob/master/proposals/0167-swift-encoders.md * Semantics of Codable Types in Archives * NSValueTransformer + https://developer.apple.com/reference/foundation/nsvaluetransformer + http://nshipster.com/nsvaluetransformer/ * "In the future, we may add API to allow Swift types to provide an Objective-C class to decode as, effectively allowing for user bridging across archival." * Similar to Russ Bishop’s proposal + Allow Swift types to provide custom Objective-C representations + https://github.com/apple/swift-evolution/blob/master/proposals/0058-objectivecbridgeable.md

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Access Control Roller Coaster * First came the private/fileprivate change (SE-0025): https://github.com/apple/swift-evolution/blob/master/proposals/0025-scoped-access-level.md * Then came open (SE-0117): https://github.com/apple/swift-evolution/blob/master/proposals/0117-non-public-subclassable-by-default.md * For the last few weeks, a faction in the community has been proposing undoing it (SE-0159): https://github.com/apple/swift-evolution/blob/master/proposals/0159-fix-private-access-levels.md + Wow. Such email. Very list. https://twitter.com/swiftlybrief/status/846938309666492417 * Rejection email: https://lists.swift.org/pipermail/swift-evolution-announce/2017-April/000337.html * Doug Gregor opens discussion for expanding private: https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170403/034903.html * David Hart, with a new proposal from Doug’s suggestions: https://github.com/apple/swift-evolution/pull/668 * http://www.jessesquires.com/thoughts-on-swift-access-control/

Modules * Features shouldn't be designed and deliberated in isolation. Decisions need to be holistic and forward-thinking. It's the project management equivalent of ABI resilience. "Design Resilience". * Robert Widmann's draft modules proposal: https://gist.github.com/CodaFi/cd66b7d70b5cd8e4e8b433fa2ace378a + fileprivate access can be recreated by creating a private "utility submodule" containing declarations of at least internal access.

Thank You

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Swift 3.1 Release * Official Swift 3.1 release post: https://swift.org/blog/swift-3-1-released/ * Swift 3.1 was first available on Swift for iPad, not macOS 🙀 + https://twitter.com/stroughtonsmith/status/844451069228994560 * Anna Zaks, program analysis at Apple: https://twitter.com/zaks_anna * Visual Debugging with Xcode WWDC 2016: https://developer.apple.com/videos/play/wwdc2016/410/ * ASAN: https://en.wikipedia.org/wiki/AddressSanitizer * TSAN: https://clang.llvm.org/docs/ThreadSanitizer.html * TSAN at WWDC 2016: https://developer.apple.com/videos/play/wwdc2016/412/

SPM Improvements * Package Manager Manifest API Redesign: https://github.com/apple/swift-evolution/blob/master/proposals/0158-package-manager-manifest-api-redesign.md * Package Manager Editable Packages: https://github.com/apple/swift-evolution/blob/master/proposals/0082-swiftpm-package-edit.md * Package Manager Version Pinning: https://github.com/apple/swift-evolution/blob/master/proposals/0145-package-manager-version-pinning.md * Package Manager Tools Version: https://github.com/apple/swift-evolution/blob/master/proposals/0152-package-manager-tools-version.md * Package Manager Swift Language Compatibility Version: https://github.com/apple/swift-evolution/blob/master/proposals/0151-package-manager-swift-language-compatibility-version.md * Lots of SwiftPM proposals & changes came in under the wire. Kudos to Ankit and Daniel.

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There's been a much stronger focus on calling ObjC from Swift than the other way around, but in this talk we'll cover both directions and the parts of the Swift language involved in the process.

ObjC Interop Overview * Nikita Lutsenko's talk: https://realm.io/news/altconf-nikita-lutsenko-objc-swift-interoperability/ + NS_SWIFT_NAME + NS_SWIFT_UNAVAILABLE + NS_REFINED_FOR_SWIFT + NS_SWIFT_NOTHROW + NS_NOESCAPE + NSEXTENSIBLESTRING_ENUM + Nullability Annotations + Generic Annotations * ClangImporter (omit needless words logic lives here) * PrintAsObjC + Kevin Ballard's PR to include unavailable/deprecated/availability attributes: https://github.com/apple/swift/pull/6480 + ObjC codegen via string manipulation. Very hackable.

Proposals on ObjC Interop * Referencing ObjC key-paths: https://github.com/apple/swift-evolution/blob/master/proposals/0062-objc-keypaths.md * Referencing ObjC property selectors: https://github.com/apple/swift-evolution/blob/master/proposals/0064-property-selectors.md * Referencing ObjC selector of a method: https://github.com/apple/swift-evolution/blob/master/proposals/0022-objc-selectors.md * Great API transformation: https://github.com/apple/swift-evolution/blob/master/proposals/0005-objective-c-name-translation.md * Import ObjC constants: https://github.com/apple/swift-evolution/blob/master/proposals/0033-import-objc-constants.md * Make optional requirements ObjC only: https://github.com/apple/swift-evolution/blob/master/proposals/0070-optional-requirements.md

Swift has evolved since 1.x to have a fluctuating amount of magic/implicit bridging from ObjC and Foundation types, sometimes going in the opposite direction towards very explicit type conversions.

We've started seeing more of what the "steady state" looks like as Swift 3.x/4.x development matures.

In the early days, Swift users would need deep compiler internal implementation details to know which NSNumber-representable type could implicitly convert. As of SE-0139 that's a lot clearer.

The subtleties of unenforced protocol conformance semantics: https://oleb.net/blog/2016/12/protocols-have-semantics/

Proposals on bridging * New from Doug Gregor, limiting @objc inference: https://github.com/DougGregor/swift-evolution/blob/objc-inference/proposals/NNNN-objc-inference.md * NSNumber and NSValue: https://github.com/apple/swift-evolution/blob/master/proposals/0139-bridge-nsnumber-and-nsvalue.md * Optional to payload or NSNull: https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md * ObjC lightweight generics: https://github.com/apple/swift-evolution/blob/master/proposals/0057-importing-objc-generics.md * Import id as Any: https://github.com/apple/swift-evolution/blob/master/proposals/0116-id-as-any.md * NSError bridging: https://github.com/apple/swift-evolution/blob/master/proposals/0112-nserror-bridging.md * Fully eliminate implicit bridging: https://github.com/apple/swift-evolution/blob/master/proposals/0072-eliminate-implicit-bridging-conversions.md * Remove bridging conversion behavior from dynamic casts: https://github.com/apple/swift-evolution/blob/master/proposals/0083-remove-bridging-from-dynamic-casts.md * Ole Begemann on "Protocols are more than Bags of Syntax": https://oleb.net/blog/2016/12/protocols-have-semantics/ * No protocol for non-user constructable types (e.g. library-vendored types) :( * Conventions are useful, even if not for technical reasons. Case study with Realm trying to buck NSError ObjC conventions: https://github.com/realm/realm-cocoa/pull/1123

Every Swift developer who has migrated code bases from Swift 1.x to 2.x, or even the more tedious 2.x to 3.x knows the pain of migrating to new Swift versions.

In this episode, we cover:

What is a source breaking change?
Almost guaranteeing that code that compiles with Swift 3.0 continues to compile with Swift 3.x and even Swift 4.x in Swift 3 mode. Why almost? Because it may be best to prevent code that never should have compiled with Swift 3.0 (i.e. compiled due to egregious bugs in the compiler) from compiling as those bugs are fixed. There are times when breaking compilation is preferable to continuing to exploit Swift bugs.
"we should try to get the “rearrange all the deckchairs” changes into Swift 3 if possible, to make Swift 3 to 4 as smooth as possible": https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20160125/007737.html
Community-driven breakage ;)
Slava Pestov (@slava_pestov) found and fixed a 'horrific' Swift 3 compatibility bug. When they say Swift 3.1 will be compatible with Swift 3, they're serious. 😅

Dollar Sign
- https://github.com/apple/swift-evolution/blob/master/proposals/0144-allow-single-dollar-sign-as-valid-identifier.md
Swift Weekly
- Issue 39, https://swiftweekly.github.io/issue-39/
  - Slava Pestov changed variadic closure arguments to be @escaping by default, which is technically a source breaking change, but only for invalid code.
- Issue 42, https://swiftweekly.github.io/issue-42/
  - Robert Widmann merged changes to reject standalone $ as identifiers, which were accidentally accepted as valid.
- Issue 43, https://swiftweekly.github.io/issue-43/
  - Rintaro Ishizaki has submitted a pull request to fix SR-2843. In type parsing, P1 & P2.Type (new protocol syntax) was incorrect.
  - DougGregor fixed an unintentional source-breaking change from Swift 3 regarding implicitly-unwrapped optionals and type inference.
Minor source breaking change for sugared types: https://github.com/apple/swift/commit/4ebac86895383ad15e34de3671c6f423e96cfc98
Running the entire test suite with version 3 or 4: https://github.com/apple/swift/commit/1fcd7d725d1c23a27d4ea31e34e20f182e0b8c37
Ignored Labels for single-"Any"-argument functions
- https://github.com/apple/swift/commit/30c4235193b64050f8110ef5598c7efb4501e0da
Xcode 8.2 last release for Swift 2.3!

Errata:

Tanner Nelson was behind the Type.self proposal, not Erica Sadun: https://github.com/apple/swift-evolution/blob/master/proposals/0090-remove-dot-self.md

In this episode, we dive into the framework we love to hate to love: SourceKit.

We wrap up with an overview of method dispatch in Swift.

SourceKit on Linux * Swift core team is fixing compiler crashers faster than they're filed! + Slava Pestov being a driving force behind many of these fixes. + @practicalswift is basically Swift compiler fuzzing as-a-service ;) + Undoing all of @practicalswift's hard work * SourceKit home page * Process Isolation * Key contributors to SourceKit: + Brian Croom and his many SourceKit PRs to help get it linking and compiling on Linux. + Alex Blewitt and his numerous attempts at getting SourceKit compiling by default on Linux. * SR-1676: Build SourceKit on Linux * CMake homepage * swift-corelibs-libdispatch * Final PR to get SourceKit building on Linux: #5903 * CODE_OWNERS.TXT * Jesse's talk at "try! Swift": Contributing to Open Source Swift * Atom Editor * Nuclide Atom Package * Sourcery codegen tool

Method Dispatch * Raizlabs' article on Method Dispatch in Swift * Chris Lattner's tweet about the article * Swift Evolution thread: Changing NSObject dispatch behavior * @NSManaged * @objc

In this episode we take a look at the first full year of open source Swift development and the first complete release cycle (for 3.0) that happened completely in the open. We reflect on where we've been and how we got here. We discuss the initial launch, Swift evolution, the "Great Swift 3 Migration", and more!

Open source announcement
First Swift.org blog post
First issue of Swift Weekly Brief
First commit to Swift
Core Team
Swift Evolution proposals
SE-0081: Move where clause to end of declaration
SE-0004: Remove the ++ and -- operators
SE-0007: Remove C-style for-loops with conditions and incrementers
Email: Winding down the Swift 3 release
Change to Swift 3 goals
Email: End of source-breaking changes for Swift 3
Generics Manifesto
ABI Stability Manifesto
Swift 2 to Swift 3 migration guide
Tooling: SourceKit
Ryan Olson, Is Apple Using Swift in iOS?, (Hacker News)
Swift Package Manager
Swift Playgrounds for iPad

There are tons of podcasts out there about general Apple/iOS/macOS development but nothing specifically about only the Swift programming language.

So, we decided to make a podcast about the Swift language and a commentary on the Swift Weekly Brief. This podcast is a continuation on more details about Swift Weekly and our own thoughts on Swift news.

If you want to connect with us you can find us and reach out on twitter: JP Simard & Jesse Squires

Be sure to subscribe so you don't miss episode 01 - airing on Monday, March 6th and be sure to check out some of the other development shows that are a part of the Spec Network.