<ul><li><a href="https://www.hackingwithswift.com/articles/233/whats-new-in-swift-5-5">Paul Hudson's What's New in Swift 5.5</a></li><li><a href="https://swiftbysundell.com/">Swift By Sundell</a></li><li><a href="https://github.com/davedelong/time">Time by Dave DeLong</a> (mistakenly called Chronos during the show)</li></ul>


<description>&lt;ul&gt;&lt;li&gt;&lt;a href="https://www.hackingwithswift.com/articles/233/whats-new-in-swift-5-5"&gt;Paul Hudson's What's New in Swift 5.5&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swiftbysundell.com/"&gt;Swift By Sundell&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/davedelong/time"&gt;Time by Dave DeLong&lt;/a&gt; (mistakenly called Chronos during the show)&lt;/li&gt;&lt;/ul&gt;
</description>

Jesse and JP talk about Swift 5.5, WWDC 21, how the Swift community has evolved in the 7 years of the language, and wrapping up the show. This is our last episode.

Thanks to all our listeners, guests, sponsors and the Spec network for supporting this show over the last 4 years!

92: Deinit

<h3>Links</h3><ul><li><a href="https://forums.swift.org/t/swift-concurrency-roadmap/41611">Swift concurrency roadmap</a></li><li><a href="https://swiftunwrapped.github.io/episodes/409cbdc5/">Episode 27: Concurrency with Chris Lattner</a></li><li><a href="https://forums.swift.org/t/concurrency-actors-actor-isolation/41613">[Concurrency] Actors & actor isolation</a></li><li><a href="https://forums.swift.org/t/concurrency-interoperability-with-objective-c/41616">[Concurrency] Interoperability with Objective-C</a></li><li><a href="https://forums.swift.org/t/concurrency-structured-concurrency/41622">[Concurrency] Structured concurrency</a></li><li><a href="https://forums.swift.org/t/concurrency-asynchronous-functions/41619">[Concurrency] Asynchronous functions</a></li><li><a href="https://forums.swift.org/t/concurrency-asyncsequence/42417">[Concurrency] AsyncSequence</a></li><li><a href="https://gist.github.com/DougGregor/444575ac67cbd25bfc4b1d4fd241ae93">Swift Concurrency Proposals Dependencies Graph</a></li><li><a href="https://docs.google.com/document/d/1BEO6QwzcYCUhaGyA-WRoM_phRa7O7mGPNIMdSV4StEE">Protocol-based Actor Isolation: Draft #2</a></li><li><a href="https://forums.swift.org/t/actors-are-reference-types-but-why-classes/42281">Actors are reference types, but why classes?</a></li></ul><h3>Sponsors</h3><ul><li><strong>AWS Amplify</strong> - 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 <a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/">awsamplify.info/IOS</a></li></ul><h3>Get in Touch</h3><p>If you're enjoying the show and want to say thank you, the best way to do that is by <a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2">leaving us a review on iTunes</a>! It lets us know what you think of the show and helps us climb the charts so other people can find the show.</p>


<description>&lt;h3&gt;Links&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/swift-concurrency-roadmap/41611"&gt;Swift concurrency roadmap&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swiftunwrapped.github.io/episodes/409cbdc5/"&gt;Episode 27: Concurrency with Chris Lattner&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/concurrency-actors-actor-isolation/41613"&gt;[Concurrency] Actors &amp; actor isolation&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/concurrency-interoperability-with-objective-c/41616"&gt;[Concurrency] Interoperability with Objective-C&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/concurrency-structured-concurrency/41622"&gt;[Concurrency] Structured concurrency&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/concurrency-asynchronous-functions/41619"&gt;[Concurrency] Asynchronous functions&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/concurrency-asyncsequence/42417"&gt;[Concurrency] AsyncSequence&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://gist.github.com/DougGregor/444575ac67cbd25bfc4b1d4fd241ae93"&gt;Swift Concurrency Proposals Dependencies Graph&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://docs.google.com/document/d/1BEO6QwzcYCUhaGyA-WRoM_phRa7O7mGPNIMdSV4StEE"&gt;Protocol-based Actor Isolation: Draft #2&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/actors-are-reference-types-but-why-classes/42281"&gt;Actors are reference types, but why classes?&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Sponsors&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;AWS Amplify&lt;/strong&gt; - 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 &lt;a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/"&gt;awsamplify.info/IOS&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Get in Touch&lt;/h3&gt;&lt;p&gt;If you're enjoying the show and want to say thank you, the best way to do that is by &lt;a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2"&gt;leaving us a review on iTunes&lt;/a&gt;! It lets us know what you think of the show and helps us climb the charts so other people can find the show.&lt;/p&gt;
</description>

Three years after first discussing concurrency in Swift with Chris Lattner, we dive into the latest round of proposals and forum discussions — although this time it is actually happening.

91: Concurrency, 3 years later

<h3>Links</h3><ul><li><a href="https://swift.org/blog/swift-atomics/">Announcement blog post</a></li><li><a href="https://twitter.com/lorentey/">Karoy Lorentey</a></li><li><a href="https://github.com/apple/swift-atomics">GitHub Repository</a></li><li><a href="https://forums.swift.org/c/related-projects/swift-atomics">Atomics forum</a></li><li><a href="https://news.ycombinator.com/item?id=24657500">Hacker News Discussion</a></li><li><a href="https://github.com/glessard/swift-atomics">Guillaume Lessard’s existing swift-atomics repo</a></li></ul><h3>Sponsors</h3><ul><li><strong>AWS Amplify</strong> - 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 <a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/">awsamplify.info/IOS</a></li></ul><h3>Get in Touch</h3><p>If you're enjoying the show and want to say thank you, the best way to do that is by <a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2">leaving us a review on iTunes</a>! It lets us know what you think of the show and helps us climb the charts so other people can find the show.</p><p>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 <a href="https://spectrum.chat/specfm/swift-unwrapped">spectrum.chat/specfm/swift-unwrapped</a>.</p>


<description>&lt;h3&gt;Links&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/swift-atomics/"&gt;Announcement blog post&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://twitter.com/lorentey/"&gt;Karoy Lorentey&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/apple/swift-atomics"&gt;GitHub Repository&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/c/related-projects/swift-atomics"&gt;Atomics forum&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://news.ycombinator.com/item?id=24657500"&gt;Hacker News Discussion&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/glessard/swift-atomics"&gt;Guillaume Lessard’s existing swift-atomics repo&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Sponsors&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;AWS Amplify&lt;/strong&gt; - 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 &lt;a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/"&gt;awsamplify.info/IOS&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Get in Touch&lt;/h3&gt;&lt;p&gt;If you're enjoying the show and want to say thank you, the best way to do that is by &lt;a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2"&gt;leaving us a review on iTunes&lt;/a&gt;! It lets us know what you think of the show and helps us climb the charts so other people can find the show.&lt;/p&gt;&lt;p&gt;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 &lt;a href="https://spectrum.chat/specfm/swift-unwrapped"&gt;spectrum.chat/specfm/swift-unwrapped&lt;/a&gt;.&lt;/p&gt;
</description>

Today we talk about the latest Swift open source project, Swift Atomics. The library you shouldn't use but want to anyway.

90: Swift Atomics

<h2>What’s in a Swift runtime?</h2><ul><li><a href="https://belkadan.com/blog/2020/04/Swift-on-Mac-OS-9/">Swift on Mac OS 9</a></li><li><a href="https://belkadan.com/blog/2020/08/Swift-Runtime-Heap-Objects/">Heap Objects</a></li><li><a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Type-Layout/">Type Layout</a></li><li><a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Type-Metadata/">Type Metadata</a></li><li><a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Uniquing-Caches/">Uniquing Caches</a></li><li><a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Class-Metadata/">Class Metadata</a></li><li><a href="https://belkadan.com/blog/2020/10/Swift-Runtime-Class-Metadata-Initialization/">Class Metadata Initialization</a></li></ul><h3>Other links</h3><ul><li><a href="https://forums.swift.org/t/guarantee-in-memory-tuple-layout-or-dont/40122">Layout guarantees</a></li><li><a href="https://www.highcaffeinecontent.com/blog/20150124-MPW,-Carbon-and-building-Classic-Mac-OS-apps-in-OS-X">Steve Troughton-Smith’s BitPaint</a></li><li><a href="https://github.com/ksherlock/mpw">@ksherlock’s mpw</a></li><li><a href="https://mikeash.com/pyblog/friday-qa-2017-09-22-swift-4-weak-references.html">An explainer on Swift weak references</a></li></ul><h3>About Jordan</h3><ul><li><a href="https://twitter.com/UINT_MIN">Twitter @UINT_MIN</a></li><li><a href="https://belkadan.com">Belkadan</a></li><li><a href="https://citizensclimatelobby.org">Citizens’ Climate Lobby</a></li></ul><h3> </h3><h3>Sponsors</h3><ul><li><strong>Instabug</strong> - 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 <a href="https://try.instabug.com/SwiftUnwrapped">https://try.instabug.com/SwiftUnwrapped</a></li></ul><p> </p><ul><li><strong>AWS Amplify </strong>- 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 <a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/">awsamplify.info/IOS</a></li></ul><h3> </h3><h3>Get in Touch</h3><p>If you're enjoying the show and want to say thank you, the best way to do that is by <a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2">leaving us a review on iTunes</a>! It lets us know what you think of the show and helps us climb the charts so other people can find the show.</p><p>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 <a href="https://spectrum.chat/specfm/swift-unwrapped">spectrum.chat/specfm/swift-unwrapped</a>.</p>


<description>&lt;h2&gt;What’s in a Swift runtime?&lt;/h2&gt;&lt;ul&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/04/Swift-on-Mac-OS-9/"&gt;Swift on Mac OS 9&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/08/Swift-Runtime-Heap-Objects/"&gt;Heap Objects&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Type-Layout/"&gt;Type Layout&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Type-Metadata/"&gt;Type Metadata&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Uniquing-Caches/"&gt;Uniquing Caches&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/09/Swift-Runtime-Class-Metadata/"&gt;Class Metadata&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com/blog/2020/10/Swift-Runtime-Class-Metadata-Initialization/"&gt;Class Metadata Initialization&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;Other links&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;a href="https://forums.swift.org/t/guarantee-in-memory-tuple-layout-or-dont/40122"&gt;Layout guarantees&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://www.highcaffeinecontent.com/blog/20150124-MPW,-Carbon-and-building-Classic-Mac-OS-apps-in-OS-X"&gt;Steve Troughton-Smith’s BitPaint&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/ksherlock/mpw"&gt;@ksherlock’s mpw&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://mikeash.com/pyblog/friday-qa-2017-09-22-swift-4-weak-references.html"&gt;An explainer on Swift weak references&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt;About Jordan&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;a href="https://twitter.com/UINT_MIN"&gt;Twitter @UINT_MIN&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://belkadan.com"&gt;Belkadan&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://citizensclimatelobby.org"&gt;Citizens’ Climate Lobby&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt; &lt;/h3&gt;&lt;h3&gt;Sponsors&lt;/h3&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;Instabug&lt;/strong&gt; - 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 &lt;a href="https://try.instabug.com/SwiftUnwrapped"&gt;https://try.instabug.com/SwiftUnwrapped&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p&gt; &lt;/p&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;AWS Amplify &lt;/strong&gt;- 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 &lt;a href="https://aws.amazon.com/getting-started/hands-on/build-ios-app-amplify/"&gt;awsamplify.info/IOS&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h3&gt; &lt;/h3&gt;&lt;h3&gt;Get in Touch&lt;/h3&gt;&lt;p&gt;If you're enjoying the show and want to say thank you, the best way to do that is by &lt;a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2"&gt;leaving us a review on iTunes&lt;/a&gt;! It lets us know what you think of the show and helps us climb the charts so other people can find the show.&lt;/p&gt;&lt;p&gt;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 &lt;a href="https://spectrum.chat/specfm/swift-unwrapped"&gt;spectrum.chat/specfm/swift-unwrapped&lt;/a&gt;.&lt;/p&gt;
</description>

Today we welcome special guest, Jordan Rose to discuss implementing the Swift runtime in Swift.

89: Implementing the Swift Runtime in Swift, with Jordan Rose

<ul><li><a href="https://swift.org/blog/5-3-release-process/">5.3 release process</a></li><li><a href="https://swift.org/blog/additional-linux-distros/">Swift for Linux distros</a></li><li><a href="https://swift.org/blog/aws-lambda-runtime/">AWS lambda Runtime</a></li><li><a href="https://swift.org/blog/swift-service-lifecycle/">Swift Service Lifecycle</a></li><li><a href="https://swift.org/blog/swift-cluster-membership/">Swift Cluster membership</a></li><li><a href="https://apple.github.io/swift-evolution/#?status=accepted&version=5.3">Proposals accepted/implemented in 5.3</a></li><li><a href="https://github.com/apple/swift/commits/release/5.3">Commit history for Swift 5.3 branch</a></li><li><a href="https://github.com/apple/swift/pull/33487">Mike Ash's perf PR</a></li><li><a href="https://www.hackingwithswift.com/articles/218/whats-new-in-swift-5-3">Hacking with Swift What’s New in Swift 5.3</a></li></ul><h2>Get in Touch</h2><p>If you're enjoying the show and want to say thank you, the best way to do that is by <a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2">leaving us a review on iTunes</a>! It lets us know what you think of the show and helps us climb the charts so other people can find the show.</p><p>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 <a href="https://spectrum.chat/specfm/swift-unwrapped">spectrum.chat/specfm/swift-unwrapped</a></p>


<description>&lt;ul&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/5-3-release-process/"&gt;5.3 release process&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/additional-linux-distros/"&gt;Swift for Linux distros&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/aws-lambda-runtime/"&gt;AWS lambda Runtime&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/swift-service-lifecycle/"&gt;Swift Service Lifecycle&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://swift.org/blog/swift-cluster-membership/"&gt;Swift Cluster membership&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://apple.github.io/swift-evolution/#?status=accepted&amp;version=5.3"&gt;Proposals accepted/implemented in 5.3&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/apple/swift/commits/release/5.3"&gt;Commit history for Swift 5.3 branch&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://github.com/apple/swift/pull/33487"&gt;Mike Ash's perf PR&lt;/a&gt;&lt;/li&gt;&lt;li&gt;&lt;a href="https://www.hackingwithswift.com/articles/218/whats-new-in-swift-5-3"&gt;Hacking with Swift What’s New in Swift 5.3&lt;/a&gt;&lt;/li&gt;&lt;/ul&gt;&lt;h2&gt;Get in Touch&lt;/h2&gt;&lt;p&gt;If you're enjoying the show and want to say thank you, the best way to do that is by &lt;a href="https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2"&gt;leaving us a review on iTunes&lt;/a&gt;! It lets us know what you think of the show and helps us climb the charts so other people can find the show.&lt;/p&gt;&lt;p&gt;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 &lt;a href="https://spectrum.chat/specfm/swift-unwrapped"&gt;spectrum.chat/specfm/swift-unwrapped&lt;/a&gt;&lt;/p&gt;
</description>

Swift 5.3 will be released very soon. What should we expect?

88: Swift 5.3

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

Swift Unwrapped

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