92: Deinit Jun 21, 2021

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

91: Concurrency, 3 years later Dec 07, 2020

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90: Swift Atomics Nov 02, 2020

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89: Implementing the Swift Runtime in Swift, with Jordan Rose Oct 12, 2020

What’s in a Swift runtime?

About Jordan

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88: Swift 5.3 Sep 14, 2020

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87: Package Registries and Indexes Aug 03, 2020

Swift Package Index
Swift Package Registry

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86: Tuples Jun 18, 2020

SE-0282 Tuples conform to Equatable, Comparable, and Hashable

Bow: https://bow-swift.io

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85: Swift on Windows and other news Mar 03, 2020

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

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84: Swift World Tour 2020 Feb 03, 2020

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

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83: Modify Accessors Jan 06, 2020

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82: Swift's New Diagnostic Architecture Dec 02, 2019

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

Thanks to this episode's Sponsors

Vettery

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Square

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

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81: Swift Compiler Driver Nov 04, 2019

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.

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80: Standard Library Preview Package Oct 07, 2019

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/

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79: Swift 5.1 with Doug Gregor Sep 16, 2019

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/

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78: Binary Dependencies in Swift Package Manager Sep 02, 2019

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

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77: Generic Math Functions and Approximate Equality Aug 05, 2019

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76: Property Wrappers Jul 01, 2019

Proposal SE-0258
Review threads:
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

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75: Swift Build Systems w/ Keith Smiley Jun 02, 2019

Links

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74: Removing Things From Swift May 06, 2019

Relevant Links

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73: UTF-8 Strings in Swift 5 Apr 01, 2019

Relevant Links

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72: Pitch for Official Style Guide & Formatter for Swift Mar 04, 2019

Relevant Links

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

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71: Key Path Expressions as Functions Feb 04, 2019

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

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70: SourceKit-LSP Jan 07, 2019

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69: Result Dec 03, 2018

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68: Opaque Result Types Nov 05, 2018

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

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67: Raw Strings Oct 15, 2018

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66: Plan For Module Stability Aug 20, 2018

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

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65: Literal Initialization Via Coercion Jul 02, 2018

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64: Never Jun 25, 2018

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

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63: Swift algorithms and data structures (feat. Kelvin Lau & Vincent Ngo) Jun 18, 2018

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

62: Interview with Ted Kremenek Jun 13, 2018

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

61: WWDC reactions with Greg Heo Jun 11, 2018

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

60: Character Properties May 28, 2018

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

59: Implicit Escaping of Closures May 21, 2018

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

58: Reimplementation of Implicitly Unwrapped Optionals May 14, 2018

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.

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

57: Swift for TensorFlow Design Overview May 07, 2018

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.

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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

56: SE-206 Hashable Enhancements Apr 30, 2018

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

55: SE-202 Random Unification Apr 23, 2018

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

54: Collection & Sequence Proposals Apr 16, 2018

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

53: Swift for TensorFlow Apr 09, 2018

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

52: Package Manager Proposals Apr 02, 2018

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

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

Thank You

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

51: Swift 4.1 w/ Doug & Ben (part 2) Mar 26, 2018

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

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50: Swift 4.1 w/ Doug & Ben (part 1) Mar 19, 2018

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

49: Swift Protocol Wishlist Mar 05, 2018

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

48: Google Summer Of Code 2018 Feb 26, 2018

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

47: Revamping QuickLook Playground APIs Feb 19, 2018

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

46: Restricting cross-module struct initializers Feb 12, 2018

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

45: Swift News January 2018 Feb 05, 2018

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:
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

44: Swift Bi-Weekly Brief Jan 29, 2018

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

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43: State of String Jan 22, 2018

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

42: Conditional Conformance Jan 15, 2018

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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41: Improving Compilation Performance Jan 08, 2018

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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40: Dynamic Member Lookup Proposal Dec 18, 2017

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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39: Source Compatibility Suite Woes Dec 11, 2017

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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38: Off to the Races Dec 04, 2017

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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37: Enum Case Enumerable Proposal Nov 27, 2017

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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36: Swift Evolution - Current Topics & Proposals Nov 13, 2017

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

35: Performance Profiling on Linux Oct 30, 2017

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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34: Floating-Point Oct 23, 2017

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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33: HTTP server v0.1.0 Oct 16, 2017

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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32: Migrating to Swift 4 Oct 09, 2017

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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31: Compile Times Oct 02, 2017

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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30: Weak References with Mike Ash Sep 25, 2017

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

Leave a review on iTunes:
https://itunes.apple.com/us/podcast/swift-unwrapped/id1209817203?mt=2

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

29: Notes from Ted Kremenek, Recent Proposals & Xcode 9 GM Sep 18, 2017

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

28: Refactoring Engine Sep 11, 2017

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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27: Concurrency with Chris Lattner Sep 04, 2017

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

26: Swift 5 Goals Aug 28, 2017

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.

25: ABI Stability – Calling Convention, Runtime and Standard Library Aug 21, 2017

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.

24: ABI Stability - Mangling Aug 14, 2017

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.

23: ABI Stability – Data Layout and Metadata Aug 07, 2017

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.

Thank You

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22: ABI Stability – The Big Picture Jul 31, 2017

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

21: New Proposals Jul 24, 2017

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

20: Swift Migrator Jul 17, 2017

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

19: WWDC Reactions Jul 10, 2017

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/

18: Community Open Source Spotlight Jul 03, 2017

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

17: Testing Swift Jun 26, 2017

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/

Thank You

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16: Error Handling in Swift — A History Jun 19, 2017

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

15: What's New in Swift 4 (Part 2) Jun 12, 2017

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

14: What's New in Swift 4 (Part 1) Jun 05, 2017

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

Thank You

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13: WWDC Predictions May 29, 2017

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

Thank You

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12: Swift Evolution May 22, 2017

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

Thank You

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11: Ownership Manifesto May 15, 2017

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

Thank You

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Try it free today at https://www.buddybuild.com/.

10: The Variety Show May 08, 2017

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

Thank You

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09: String Manifesto May 01, 2017

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

Thank You

Thanks to this episode's sponsor, PerfectlySoft. Find tutorials and other content at http://perfect.org/learn.html

08: Archival Serialization & Swift Encoders Apr 24, 2017

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

Thank You

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07: Access Control - The Saga Continues Apr 17, 2017

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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06: Swift 3.1 Release & SwiftPM Improvements Apr 10, 2017

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.

Thanks to this episode's sponsor, PerfectlySoft. Download the Perfect Assistant for free at http://perfect.org/en/assistant/

05: Objective-C Interoperability Apr 03, 2017

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

04: Bridging with Objective-C Mar 27, 2017

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

03: Source Stability (What is a Source Breaking Change?) Mar 20, 2017

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

02: SourceKit (Compiling by Default) Mar 13, 2017

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

01: Already & Only (Swift Open Source Year in Review) Mar 06, 2017

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

00: And We're Live! Feb 24, 2017

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.

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