0.3.0

Destiny is 1 year old as of today! Major progress, albeit slow, has been made since its inception. I expect 2026 to be the year we get stable and feature complete!

Here are a few features still missing for Destiny to be feature complete:

• route query support
• supporting route paths > 64 bytes
• File Middleware
• Compression support
• OpenAPI support
• Metrics/Tracing support
• Web Socket support
• Data validation support (decoding a request body from a form/POST)
• HTTP Pipelining
• Rate limits

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• major performance improvements and optimizations
• many bug and logic fixes
• updated benchmark code
• many breaking changes

Additions

• added response streaming
• added header parsing
• added request bodies
• added request body streaming
• added perfect hashing for routes
• added more convenient structs and functions
• added more protocols
• adopted typed throws
• adopted Span and MutableSpan where applicable
• adopted Swift 6 and Swift 6 Language Mode
• adopted more package traits
• added more documentation and markdown files
• added some github issue templates
• begun embedded support
• added some unit tests
• added more products to Package.swift
• enable ExistentialAny upcoming feature by default
• added more compilation diagnostics for prevent invalid and malformed code
• HTTPCookie now supports partitioning
• added explicit Bionic, WASILibc and Windows support
• added support for noncopyable values to protocols and as a response body
• routers can now respond with an error or 404 responder
• added RandomHashTags/swift-variablelengtharray dependency
• added RandomHashTags/swift-media-types dependency
• added RandomHashTags/swift-unwrap-arithmetic-operators dependency

Updates

• updated README
• many breaking changes
• some protocols are now annotated with @_marker
• use code generation for default http request methods, http headers, and response statuses
• moved many unused conformances at runtime to only be present for the macros
• relaxed some protocol requirements
• many binary size reductions without sacrificing functionality
• moved media types to its own repo
• moved variable-length array to its own repo
• default notFound response now uses the status code 404 instead of 200
• CORS middleware rework (performance improvements)
• general code cleanup and maintenance
• HTTPDateFormat optimizations
• swift-syntax is no longer emitted into the final binary
• adopted opaque types instead of generic parameters in some places
• minor epoll changes
• responses no longer support async by default (still supports async via Tasks)
• default errors are not enums instead of structs
• http headers now use lowercase by default
• parts of the code now reflect http specifications
• can now use a multiline string as a response body

Deletions

• deleted many protocols, bare-bones structs and extensions
• deleted a lot of unused and obsolete
• deleted apple/swift-argument-parser dependency
• deleted swift-server/swift-service-lifecycle dependency
• deleted apple/swift-collections dependency
• deleted RandomHashTags/swift-compression dependency
• deleted a lot of Foundation related code
• disabled conditional routing (not really useful yet)
• deleted some obsolete macros
• deleted some usages of Task.isCancelled

Many Swift crashes were reported and fixed during this development.

Full Changelog: 0.2.0...0.3.0

0.2.0

• major performance improvements and fixes
• breaking changes and refactors
• more protocol abstractions
• added more functionality and convenience initializers and functions
• added some documentation, compiler diagnostics and compile safety
• better organized modules, folder structures and logic flow
• minor changes to begin supporting Swift Language Mode 6
• minimum required Swift is now 6.2
• now supports package traits
• added funding.yml
• removed swift-http-types dependency
• added swift-collections, swift-argument-parser and swift-compression dependencies

I also reported multiple compile crashes while developing the project to swiftlang. Most of them have been resolved.

Full Changelog: 0.1.0...0.2.0

0.1.0

I am very satisfied with the progress of this project. This milestone was achieved in just 22 days since its inception!

Here are a few things that are usable right now:

• HTTP/1.1 server with custom hostname & port
• Static & Dynamic Middleware
• Static & Dynamic Routes
• Registering middleware & routes after the server has started
• Sending data in different representations
• Support for custom clients via SocketProtocol
• Plethora of useful SIMD extensions
• Destiny's server response timings are the fastest compared to Vapor & Hummingbird (mainly thanks to Macros & SIMD)!

Some notable things missing:

• processing or usage of HTTP request headers
• TLS/SSL support
• compression support
• support for custom middleware & route implementations that conform to their respective protocols (at compile time; you can currently register them only after the server has started)
• more HTTPMediaTypes

Full Changelog: https://github.com/RandomHashTags/destiny/commits/0.1.0