What's new in Swift 5.3?
The following changes were made 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
- A new Float16 type
- Swift Package Manager gains binary dependencies, resources, and more
