A new Float16 type

Paul Hudson      @twostraws

SE-0277 introduced a new half-precision floating point type called Float16, which is commonly used in graphics programming and machine learning.

This new floating-point type fits in alongside Swift’s other similar types:

let first: Float16 = 5
let second: Float32 = 11
let third: Float64 = 7
let fourth: Float80 = 13

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Other changes in Swift 5.3…

• Multi-pattern catch clauses
• Multiple trailing closures
• Synthesized Comparable conformance for enums
• self is no longer required in many places
• Type-based program entry points
• where clauses on contextually generic declarations
• Enum cases as protocol witnesses
• Refined didSet semantics
• Swift Package Manager gains binary dependencies, resources, and more

Download all Swift 5.3 changes as a playground Link to Swift 5.3 changes

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