Swift Unwrapped

80: Standard Library Preview Package

Oct 7 • 29 min

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.

79: Swift 5.1 with Doug Gregor

Sep 16 • 52 min

We invite special guest, Doug Gregor, back to the show to discuss all things Swift 5.1

78: Binary Dependencies in Swift Package Manager

Sep 2 • 29 min

What’s one feature missing from the Swift Package Manager that CocoaPods has had for years? Binary dependencies! But how would this work in SPM?

77: Generic Math Functions and Approximate Equality

Aug 5 • 25 min

We discuss the new generic math functions coming to Swift, as well as approximate equality for floating point numbers.

76: Property Wrappers

Jul 1 • 31 min

A concept that’s been in and out of conversation for Swift since 2015, property behaviors - uh, delegates - uh, wrappers - are now back with the full weight of SwiftUI behind it.

75: Swift Build Systems w/ Keith Smiley

Jun 2 • 27 min

In this episode with special guest Keith Smiley, we cover the growing number of tools that let you build things in Swift, a few of which are made by Apple, as well as some others like CMake, Bazel and Buck.

74: Removing Things From Swift

May 6 • 34 min

Although we usually discuss new features being added to Swift, this episode is all about removing things from the language.

73: UTF-8 Strings in Swift 5

Apr 1 • 26 min

72: Pitch for Official Style Guide & Formatter for Swift

Mar 4 • 40 min

In what is sure to lead to significant community discussion, there’s now a pitch for adding a style guide and formatter to Swift.

71: Key Path Expressions as Functions

Feb 4 • 28 min

If this proposal is accepted, we’ll be seeing Key Paths in a lot more places.

70: SourceKit-LSP

Jan 7 • 20 min

The Swift project is working on official support for the industry-standard Language Server Protocol and we can barely contain our excitement.

69: Result

Dec 3, 2018 • 25 min

It’s the most wonderful time of the year again… the time when the Swift community considers adding a Result type to the standard library. Except that this time it’ll probably work!

68: Opaque Result Types

Nov 5, 2018 • 16 min

In this episode, Jesse and JP dive in to opaque result types, which could help prevent leaking of implementation details to library consumers.

67: Raw Strings

Oct 15, 2018 • 28 min

String literals are the gift that keep on giving with each Swift version, and Swift 5 is no exception, with raw strings.

66: Plan For Module Stability

Aug 20, 2018 • 34 min

We discuss Jordan Rose’s recent forums post on a proposed plan for module stability.

65: Literal Initialization Via Coercion

Jul 2, 2018 • 9 min

A recent type checking speedup had very small source compatibility breakages, but nonetheless went through the evolution process and it was accepted!

64: Never

Jun 25, 2018 • 32 min

The Never type has some very unique properties and behavior. We introduce the type and discuss a recent proposal (SE-215) to make it conform to Hashable and Equatable.

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

Jun 18, 2018 • 45 min

We welcome Kelvin and Vincent to the show to discuss Data Structures and Algorithms in Swift.

62: Interview with Ted Kremenek

Jun 13, 2018 • 49 min

An in-depth conversation about Swift 4.2 and beyond with Ted Kremenek, Manager of the Languages and Runtimes team at Apple.

61: WWDC reactions with Greg Heo

Jun 11, 2018 • 43 min

We discuss the announcements from WWDC 2018 with special guest, Greg Heo.

60: Character Properties

May 28, 2018 • 18 min

We discuss recent proposals on adding unicode properties to characters and Unicode.scalar.

59: Implicit Escaping of Closures

May 21, 2018 • 24 min

Escaping or non-escaping? That is the question.

58: Reimplementation of Implicitly Unwrapped Optionals

May 14, 2018 • 16 min

IUOs are dead, long live IUOs! With this change, IUOs are no longer a type but rather a special variant of Optional.

57: Swift for TensorFlow Design Overview

May 7, 2018 • 40 min

Now that Swift for TensorFlow has been open sourced and documentation is available, we share some very interesting findings.

56: SE-206 Hashable Enhancements

Apr 30, 2018 • 19 min

Swift will soon have a more robust hashing strategy, and it doesn’t involve always returning zero for hashValue.

55: SE-202 Random Unification

Apr 23, 2018 • 24 min

Randomness gets a long overdue Swift treatment.

54: Collection & Sequence Proposals

Apr 16, 2018 • 23 min

We cover a few recent Collection & Sequence Swift Evolution proposals.

53: Swift for TensorFlow

Apr 9, 2018 • 21 min

It happened. Google forked Swift. Swift for Tensorflow has wide-reaching implications and we just had to share our thoughts.

52: Package Manager Proposals

Apr 2, 2018 • 22 min

We cover two recent Swift Package Manager proposal pitches.

51: Swift 4.1 w/ Doug & Ben (part 2)

Mar 26, 2018 • 32 min

We go over the Swift 4.1 release highlights with Ben Cohen and Doug Gregor from the Swift team. Part 2 of 2.

50: Swift 4.1 w/ Doug & Ben (part 1)

Mar 19, 2018 • 18 min

We go over the Swift 4.1 release highlights with Ben Cohen and Doug Gregor from the Swift team. Part 1 of 2.

49: Swift Protocol Wishlist

Mar 5, 2018 • 47 min

Thoughts on Dave DeLong’s “protocol wishlist” for Swift and other ideas for improving Swift’s protocols.

48: Google Summer Of Code 2018

Feb 26, 2018 • 33 min

Swift.org is officially participating in the Google Summer of Code program, and there are some great project ideas.

47: Revamping QuickLook Playground APIs

Feb 19, 2018 • 20 min

We discuss Connor Wakamo’s proposal to revamp the Playground QuickLook APIs

46: Restricting cross-module struct initializers

Feb 12, 2018 • 15 min

We discuss Jordan Rose’s proposal to address issues with struct initializers

45: Swift News January 2018

Feb 5, 2018 • 26 min

The pace is picking up early 2018, so there’s a lot to cover.

44: Swift Bi-Weekly Brief

Jan 29, 2018 • 11 min

The King is dead, long live the King!

43: State of String

Jan 22, 2018 • 24 min

We dissect Michael Ilseman’s recent document with potential optimizations and improvements to String in preparation for ABI stability.

42: Conditional Conformance

Jan 15, 2018 • 13 min

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

41: Improving Compilation Performance

Jan 8, 2018 • 23 min

We discuss the recent efforts improving & instrumenting the Swift compiler’s performance.

40: Dynamic Member Lookup Proposal

Dec 18, 2017 • 21 min

We discuss Chris Lattner’s recent “Dynamic Member Lookup” proposal.

39: Source Compatibility Suite Woes

Dec 11, 2017 • 26 min

The source compatibility suite has been useful in catching compatibility issues before official Swift releases are cut, but it leaves much to be desired especially around communication with project maintainers outside Apple.

38: Off to the Races

Dec 4, 2017 • 23 min

Think thread safety with Swift is the same as C languages, with slightly different syntax? Think again!

37: Enum Case Enumerable Proposal

Nov 27, 2017 • 22 min

Enumerate. All. The. Cases.

36: Swift Evolution - Current Topics & Proposals

Nov 13, 2017 • 19 min

Brief discussion around some recent proposals.

35: Performance Profiling on Linux

Oct 30, 2017 • 33 min

How do you even profile without Instruments.app?

34: Floating-Point

Oct 23, 2017 • 22 min

We discuss Swift’s numeric protocols and types, especially those of the floating point variety.

33: HTTP server v0.1.0

Oct 16, 2017 • 18 min

We discuss the first release of the HTTP server library from the Swift Server APIs project.

32: Migrating to Swift 4

Oct 9, 2017 • 22 min

Since many of you are probably migrating to Swift 4 as you listen to this, we figured we’d share our thoughts on the transition.

31: Compile Times

Oct 2, 2017 • 25 min

We share our tips for measuring & improving Swift compilation times, as well as share some news about recent efforts to test compile times within the Swift repo.

30: Weak References with Mike Ash

Sep 25, 2017 • 31 min

We welcome Mike Ash to the show to discuss the implementation details of weak references in Swift and how they’ve changed.

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

Sep 18, 2017 • 33 min

We discuss some recent Swift Evolution proposals, Xcode 9 GM, along with a boatload of Follow Up (tm) from Ted Kremenek and Pierre Habouzit.

28: Refactoring Engine

Sep 11, 2017 • 32 min

All about the recent refactoring pieces announced at WWDC 2017 and open sourced in the last few months.

27: Concurrency with Chris Lattner

Sep 4, 2017 • 59 min

We welcome Chris Lattner to the show to discuss concurrency in Swift 5 and beyond!

26: Swift 5 Goals

Aug 28, 2017 • 34 min

We share our thoughts on the newly announced goals for Swift 5.

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

Aug 21, 2017 • 26 min

The fourth and final episode in our series on ABI Stability, we cover the remaining categories of decisions that must be made to stabilize the ABI.

24: ABI Stability - Mangling

Aug 14, 2017 • 33 min

Continuing our series on ABI Stability with a third installment, we focus on the mangling component and address some past mistakes.

23: ABI Stability – Data Layout and Metadata

Aug 7, 2017 • 37 min

Following last week’s episode on the big picture of ABI Stability, we focus on two categories of decisions that need to happen to get there: data layout and metadata.

22: ABI Stability – The Big Picture

Jul 31, 2017 • 38 min

We clear up some of the misconceptions around what ABI stability means, how we’ll get there and why it’s important.

21: New Proposals

Jul 24, 2017 • 27 min

This week we dive into some of the recent proposals, including SE-0180, SE-0181, SE-0182, SE-0183

20: Swift Migrator

Jul 17, 2017 • 29 min

We dissect the newly open sourced part of Swift tooling that helps us port our apps to the latest Swift version.

19: WWDC Reactions

Jul 10, 2017 • 42 min

A month after WWDC, we share our thoughts on the announcements and events from the week.

18: Community Open Source Spotlight

Jul 3, 2017 • 37 min

Taking a break from Swift itself, we shine the spotlight on the open source community and highlight some lesser-known open source Swift projects that we think are interesting!

17: Testing Swift

Jun 26, 2017 • 31 min

Exploring the many different ways in which the Swift compiler is tested.

16: Error Handling in Swift — A History

Jun 19, 2017 • 36 min

The state of error handling in Swift and a brief history on how we got here, as well as comparisons to Objective-C.

15: What’s New in Swift 4 (Part 2)

Jun 12, 2017 • 30 min

Part two of our discussion on the new features and improvements in Swift 4! There were so many great things to discuss, we needed two episodes!

14: What’s New in Swift 4 (Part 1)

Jun 5, 2017 • 26 min

We discuss some of the new features and improvements in Swift 4!

13: WWDC Predictions

May 29, 2017 • 27 min

We share our hopes & expectations for the Swift language at WWDC 2017.

12: Swift Evolution

May 22, 2017 • 26 min

We debate if Swift evolution is pulling its weight, and if it’s possible for Swift to remain “open” without the cost.

11: Ownership Manifesto

May 15, 2017 • 29 min

A brief overview of the complex topic of memory ownership revisions currently underway.

10: The Variety Show

May 8, 2017 • 47 min

We cover 3 recent Swift Evolution proposals and the new Swift Compatibility Test Suite.

09: String Manifesto

May 1, 2017 • 38 min

We go in way over our heads into Swift’s String Manifesto.

08: Archival Serialization & Swift Encoders

Apr 24, 2017 • 29 min

We unpack the recent SE proposals on serialization & encoding.

07: Access Control - The Saga Continues

Apr 17, 2017 • 37 min

There has been a ton of debate on the Swift Evolution mailing lists about access control in Swift. We share our thoughts on the situation.

06: Swift 3.1 Release & SwiftPM Improvements

Apr 10, 2017 • 44 min

This week we celebrate the release of Swift 3.1 and the large set of improvements to SwiftPM that happened just under the wire.

05: Objective-C Interoperability

Apr 3, 2017 • 40 min

Continuing from episode 4’s take on Objective-C Bridging, in this episode we look at Objective-C interoperability.

04: Bridging with Objective-C

Mar 27, 2017 • 39 min

There’s been a constant push and pull on ObjC bridging since Swift 1.x, trying to seek a balance but always swaying in the other direction.

03: Source Stability (What is a Source Breaking Change?)

Mar 20, 2017 • 29 min

The up (and down) sides of striving for source compatibility across Swift versions. Let’s rearrange some deck chairs!

02: SourceKit (Compiling by Default)

Mar 13, 2017 • 32 min

The tumultuous tales of the community getting SourceKit compiling on Linux.

01: Already & Only (Swift Open Source Year in Review)

Mar 6, 2017 • 37 min

A retrospective on one year of open source Swift.

00: And We’re Live!

Feb 24, 2017 • 2 min

Welcome to Swift Unwrapped! A weekly, 30-minute show about Swift the language hosted by JP Simard & Jesse Squires