New Features

• Added initializers to ReseedingRandomGenerator that take 1 or 0 arguments
  • If Reseeder conforms to SeedableFromOtherRandomGenerator, the reseeder is created from Reseeder.seeded (see a7d1b9ba06c93c01d02a9eb2fc3cb3d75fa8694a)
  • For Swift >= 3.1, if Reseeder is DeviceRandom or ARC4Random, the reseeder is just Reseeder.default (see da576454c4e13895d3607384cded36e275274544)
• Added floating-point value generation methods for open, half open, and closed intervals (see 59182e5b25f3a3bed1cf88682af7727651d0a906)
• Added thread-local random generators (see fde214b1c24b9d9d5bc6835aca4744a4331de195) :tada:

Improvements

• Made Double and Float random(using:) about 27 times faster (see 8799af7d6538f9da1835037e070d7afa66d99e29)
• Made CGFloat.random(using:) faster , in turn making (NS|UI)Color.random(using:) faster (see a1b60d13e322abaaa6c6520c9c97cc1f96f56e9b)

Fixes

• Made randomClosed methods be truly on the [0, 1] interval (see 9b0d56bf4be175612b765b7f37b44e8115577789)

Changes

• Random Dates are internally relative to timeIntervalSinceReferenceDate
• Deprecated Date random(within:using:) for TimeInterval ranges (see 2d3075567acd0a7b9cbf4ab7bb1c0f87d1ae914e)

New Features

• Added SeedableFromOtherRandomGenerator protocol
  • Allows for creating a RandomGenerator seeded from another RandomGenerator
• Added ReseedingRandomGenerator struct for reseeding a base RandomGenerator with another after a certain number of bytes have been generated

Improvements

• Much faster Array random(using:) for Swift versions before 3.1

Fixes

• Fix compilation issues by not using API unavailable in Swift 3.1

Improvements

• Made Array init(randomCount:using:) about 4 times faster for integer types by having it safely call init(unsafeRandomCount:using:) (see 350ce9da66889e4976a6a4794a44eef40ef010eb)

• Made Dictionary shuffling faster (see 1977f86ee139c38b87613fb459179e3372cb63cf)

Changes

• Made Array init(unsafeRandomCount:using:) available for all element types, regardless if they conform to UnsafeRandom (see 71d4bc6b20b2b9634244ea15f273a87703bf5723)

New Features

• Added seeded static variable to Xoroshiro, Xorshift, XorshiftStar, and MersenneTwister

Improvements

• Made the init(randomCount:using:) family of Array initializers significantly faster

Improvements

• Range types now have random and random(using:) for when bounds are RandomWithinRange and RandomWithinClosedRange types
• Improved performance for retrieving random elements from collections

Fixes

• Fixed random(within:) for unsigned integers

New Features

• Added randoms(using:) methods to Random- types that return a sequence of random values according to the protocol's specialization
• Added Bool.random(withWeight:using:) for probability
• Added more random number generators:
  • Xorshift
  • XorshiftStar
• NSMutableArray now conforms to Shuffleable and UniqueShuffleable
• Added randomTuple(using:) global functions for creating tuples of up to six random elements
• Added ShuffleableInRange and UniqueShuffleableInRange protocols

Improvements

• Much better init(randomCount:using:) performance for Array and Dictionary
• Array shuffling is ten times faster
• Much better performance for random(within:using:) for signed integers

Changes

• Changed RandomGenerator from an enum to a protocol type
  • As a result, there is no default generator, meaning a generator must be specified as a parameter
• Random generation functions take a generic RandomGenerator type as an inout argument
• Removed URL conformance to Random

New Features

• Mersenne Twister random generator
• All integer types conform to UnsafeRandom
• Array(unsafeRandomCount:using:) for types conforming to UnsafeRandom
  • For much better performance with integer types, this should be used
• Added a benchmark target that can be built with the Swift package manager
• Created RandomWithMaxWidth and RandomWithExactWidth protocols
• Added randomize(buffer:maxWidth:) and randomize(buffer:exactWidth:) methods to RandomGenerator

Improvements

• Generating RandomEnum values is significantly faster

Fixes

• UnicodeScalar now produces a uniform distribution when the Range or ClosedRange spans below 0xD7FF and above 0xE000

Changes

• Removed RandomDistribution (#29)
• The devRandom and devURandom cases for RandomGenerator are now a single device case with a DeviceSource parameter
• The arc4random case for RandomGenerator is now camel-cased arc4Random
• Float80 extension now available for i386 and x86_64 architectures, not only for macOS
• URL.random(fromValues:) now returns an Optional<URL>
• Added ShiftOperations dependency
• Uses Strideable instead of _Strideable

New Features

• Date now conforms to RandomWithinRange
• Made unicode scalar based string generation faster
• Created UnsafeRandom, RandomEnum, RandomWithAll, and RandomRawRepresentable protocols

Fixes

• Fix which random generator is used for random String. Previously used the default instead of the one passed into the function.

Fixes

• Conformance to Random was removed accidentally for types conforming to FloatingPoint. This has been fixed.