• This is an API breaking change due to addEdge() changes
• addEdge(_ e: E, directed: Bool) deprecated in favor of just addEdge(_ e: E) since Edge already has a directed property (@Vithanco)
• Fix generic parameter name shadowing for Swift 6 compatibility
• Count paths between vertices (@sbeitzel)
• Improve performance of detectCycles() (@automaciej)
• Indegree and Outdegree methods (@TizianoCoroneo)

• Reverse a graph with reversed() (@mattpaletta)
• Performance improvement to topologicalSort() (@dabbott)
• Recursive initializers for UniqueElementsGraph (@ferranpujolcamins)
• A few let vs var warnings fixed

• This is an API breaking refactor
• This version requires Swift 5.0 (Xcode 10.2)
• Graph no longer conforms to class so structs can be Graphs (@davecom)
• Graph and Edge are now Codable meaning all implementations must be as well including all vertex types, leading to the removal of CodableUnweightedGraph and CodableWeightedGraph, which are now unnecessary (@davecom)
• New CONTRIBUTORS.md file containing some history (@davecom)
• New search traversal methods (@ferranpujolcamins)
• Improvements to UniqueElementsGraph (@ferranpujolcamins)
• Useful constructors for testing (@ferranpujolcamins)
• Improvements to UniqueElementsGraph tests (@ferranpujolcamins)
• Refactor many aspects of UnweightedGraph and WeightedGraph into conditional conformance extensions to Graph and new protocols (@ferranpujolcamins)
• Add new performance tests (@ferranpujolcamins)
• Add direction back to Edge (@ferranpujolcamins)

• This is an API breaking refactor
• This version requires Swift 4.2 (Xcode 10.1)
• Graph is now a protocol instead of a class
• edgesToVertices() is now a method on Graph instead of a free function
• The Edge protocol has been significantly simplifieid
• UnweightedEdge and WeightedEdge are now Codable
• Subclasses of Graph CodableUnweightedGraph and CodableWeightedGraph provide serialization support to JSON and anything else Codable supports (thanks for the help, @yoiang)
• Experimental subclass of UnweightedGraph, UniqueElementsGraph provides a union operation and guarantees no duplicate vertices & edges in a graph (thanks @ferranpujolcamins)
• Cycle detector method that returns edges (thanks @ZevEisenberg)

• Project reorganized to support testing on Linux, just run swift test
• Package.swift updated for Swift 4 package management style
• Added detectCyles() which uses the Liu/Wang algorithm for detecting cycles up to any length in a graph
• Added a couple unit tests for testing detectCycles()

• Upgraded to Swift 4
• Project now built with Xcode 9
• SwiftPriorityQueue replaced with newer version

• Fixed a bug in removeAllEdges() and added a test for it

• Added a Minimum Spanning Tree Fuction mst() based on Jarnik's Algorithm (aka Prim's Algorithm)
• Simplified Dijkstra's Algorithm implementation

• Fixes a bug that could result in the wrong edges being removed when a vertex is removed (thanks @brandonroth)
• Silences some warnings about printing optionals introduced in Swift 3.1

• Carthage Support (via re-organizing into framework) - thanks @klundberg
• New search methods added - versions of bfs() and dfs() that support custom goal functions
• findAll() added as a version of bfs() with multiple potential outcomes
• watchOS support added to Podfile

• Moved search functions from free functions to extensions of Graph and WeightedGraph
• Switched license to Apache 2.0 from MIT
• Added topologicalSort() and isDAG
• Changed access level for most types to open
• Added unit tests for topologicalSort and isDAG

• Fixes for the final version of Swift 3
• Updated version of SwiftPriorityQueue
• Added .swift-version file

• Requires Swift 3
• Minor breaking API naming changes in-line with Swift 3 expectations
• dijkstra() has a parameter for the starting distance to the root vertex (typically zero)
• Updated the included SwiftPriorityQueue source file

• Last version to support Swift 2
• Switched dijkstra() to use a priority queue
• Included the source file for SwiftPriorityQueue in the project

• Fixed build issues on Xcode 7.3

• Fixed Swift 3 deprecations
• Added SPM support

• Separated SwiftGraph into multiple files
• Fixed some documentation.
• Made edges and vertices internal instead of private

Fixed the misspelling of Dijkstra

Updated to support Swift 2

Initial Stable Release - last release with Swift 1.2 support