Официально представлена новая версия языка программирования Swift 3.0.
Swift 3 является первым крупным релизом со времени открытия исходных текстов, в котором представлены значительные улучшения и усовершенствования языка и стандартной библиотеки, большие дополнения в порт под Linux, и первый официальный релиз пакетного менеджера Swift Package Manager.
Порт для Linux теперь поставляется с Swift Core Libraries и Swift Package Manager.
Являясь крупным релизом, Swift 3 привносит изменения, которые делают язык несовместимым с версиями Swift 2.2 и 2.3 на уровне исходных текстов. Эти изменения затрагивают не только названия API стандартной библиотеки, но и то, как импортируются API из Objective-C (в частности из Cocoa) в Swift. Многие изменения в значительной степени являются механическими, и, чтобы помочь перевести проекты на новую версию языка, в Xcode 8.0 добавлен новый инструмент Swift Migrator. Также доступно руководство по миграции на Swift 3.
- SE-0002: Removing currying func declaration syntax
- SE-0003: Removing var from Function Parameters
- SE-0004: Remove the ++ and -- operators
- SE-0005: Better Translation of Objective-C APIs Into Swift
- SE-0006: Apply API Guidelines to the Standard Library
- SE-0007: Remove C-style for-loops with conditions and incrementers
- SE-0008: Add a Lazy flatMap for Sequences of Optionals
- SE-0016: Adding initializers to Int and UInt to convert from UnsafePointer and UnsafeMutablePointer
- SE-0017: Change Unmanaged to use UnsafePointer
- SE-0019: Swift Testing
- SE-0023: API Design Guidelines
- SE-0025: Scoped Access Level
- SE-0029: Remove implicit tuple splat behavior from function applications
- SE-0031: Adjusting inout Declarations for Type Decoration
- SE-0032: Add first(where:) method to SequenceType
- SE-0033: Import Objective-C Constants as Swift Types
- SE-0034: Disambiguating Line Control Statements from Debugging Identifiers
- SE-0035: Limiting inout capture to @noescape contexts
- SE-0036: Requiring Leading Dot Prefixes for Enum Instance Member Implementations
- SE-0037: Clarify interaction between comments & operators
- SE-0038: Package Manager C Language Target Support
- SE-0039: Modernizing Playground Literals
- SE-0040: Replacing Equal Signs with Colons For Attribute Arguments
- SE-0043: Declare variables in ‘case’ labels with multiple patterns
- SE-0044: Import as Member
- SE-0046: Establish consistent label behavior across all parameters including first labels
- SE-0047: Defaulting non-Void functions so they warn on unused results
- SE-0048: Generic Type Aliases
- SE-0049: Move @noescape and @autoclosure to be type attributes
- SE-0052: Change IteratorType post-nil guarantee
- SE-0053: Remove explicit use of let from Function Parameters
- SE-0054: Abolish ImplicitlyUnwrappedOptional type
- SE-0055: Make unsafe pointer nullability explicit using Optional
- SE-0057: Importing Objective-C Lightweight Generics
- SE-0059: Update API Naming Guidelines and Rewrite Set APIs Accordingly
- SE-0060: Enforcing order of defaulted parameters
- SE-0061: Add Generic Result and Error Handling to autoreleasepool()
- SE-0062: Referencing Objective-C key-paths
- SE-0063: SwiftPM System Module Search Paths
- SE-0064: Referencing the Objective-C selector of property getters and setters
- SE-0065: A New Model For Collections and Indices
- SE-0066: Standardize function type argument syntax to require parentheses
- SE-0067: Enhanced Floating Point Protocols
- SE-0069: Mutability and Foundation Value Types
- SE-0070: Make Optional Requirements Objective-C-only
- SE-0071: Allow (most) keywords in member references
- SE-0072: Fully eliminate implicit bridging conversions from Swift
- SE-0076: Add overrides taking an UnsafePointer source to non-destructive copying methods on UnsafeMutablePointer
- SE-0077: Improved operator declarations
- SE-0081: Move where clause to end of declaration
- SE-0085: Package Manager Command Names
- SE-0086: Drop NS Prefix in Swift Foundation
- SE-0088: Modernize libdispatch for Swift 3 naming conventions
- SE-0089: Renaming String.init<T>(_: T)
- SE-0091: Improving operator requirements in protocols
- SE-0092: Typealiases in protocols and protocol extensions
- SE-0093: Adding a public base property to slices
- SE-0094: Add sequence(first:next:) and sequence(state:next:) to the stdlib
- SE-0095: Replace protocol<P1,P2> syntax with P1 & P2 syntax
- SE-0096: Converting dynamicType from a property to an operator
- SE-0099: Restructuring Condition Clauses
- SE-0101: Reconfiguring sizeof and related functions into a unified MemoryLayout struct
- SE-0102: Remove @noreturn attribute and introduce an empty Never type
- SE-0103: Make non-escaping closures the default
- SE-0106: Add a macOS Alias for the OSX Platform Configuration Test
- SE-0107: UnsafeRawPointer API
- SE-0109: Remove the Boolean protocol
- SE-0111: Remove type system significance of function argument labels
- SE-0112: Improved NSError Bridging
- SE-0113: Add integral rounding functions to FloatingPoint
- SE-0114: Updating Buffer «Value» Names to «Header» Names
- SE-0115: Rename Literal Syntax Protocols
- SE-0116: Import Objective-C id as Swift Any type
- SE-0117: Allow distinguishing between public access and public overridability
- SE-0118: Closure Parameter Names and Labels
- SE-0120: Revise partition Method Signature
- SE-0121: Remove Optional Comparison Operators
- SE-0124: Int.init(ObjectIdentifier) and UInt.init(ObjectIdentifier) should have a bitPattern: label
- SE-0125: Remove NonObjectiveCBase and isUniquelyReferenced
- SE-0127: Cleaning up stdlib Pointer and Buffer Routines
- SE-0128: Change failable UnicodeScalar initializers to failable
- SE-0129: Package Manager Test Naming Conventions
- SE-0130: Replace repeating Character and UnicodeScalar forms of String.init
- SE-0131: Add AnyHashable to the standard library
- SE-0133: Rename flatten() to joined()
- SE-0134: Rename two UTF8-related properties on String
- SE-0135: Package Manager Support for Differentiating Packages by Swift version
- SE-0136: Memory Layout of Values
- SE-0137: Avoiding Lock-In to Legacy Protocol Designs