Version 1.2.6

• Improved the performance of instance FactorialMonoid PrefixMemory
• Bumped the containers dependency upper bound
• Thanks to Jonathan Knowles:
  • Documented and added tests for Monus laws
  • Added the missing class instances and tests for Identity and Const
  • Using GeneralizedNewtypeDeriving to simplify existing instances
  • Fixed compilation on older versions of GHC
  • Updated and improved the CI
  • Removed trailing whitespace

Version 1.2.5.1

• Bumped the containers dependency upper bound

Version 1.2.5

• Data.Monoid.Null.MonoidNull now has a default implementation
• Add instances of MonoidNull and (where appropriate) PositiveMonoid for:
  • (a, b, c, d, e)
  • Data.Functor.Compose f g a
  • Data.Functor.Const r a
  • Data.Functor.Identity a
  • Data.Functor.Product f g a
  • Data.Ord.Down a
  • Data.Proxy.Proxy a
  • Data.Semigroup.Max a
  • Data.Semigroup.Min a
  • Data.Semigroup.WrappedMonoid a
  • GHC.Generics.(:*:) f g a
  • GHC.Generics.(:.:) f g a
  • GHC.Generics.K1 i c p
  • GHC.Generics.M1 i c f p
  • GHC.Generics.Par1 p
  • GHC.Generics.Rec1 f p
  • GHC.Generics.U1 p
• Added instances of Reductive for Max a, Min a, Any, and All
• Bumped the commutative-semigroups dependency upper bound

Version 1.2.4.1

• Bumped the text dependency upper bound

Version 1.2.4

• Added Data.Monoid.Instances.PrefixMemory.Shadowed monoid transformer

Version 1.2.3

• Added DistributiveGCDMonoid and DistributiveLCMMonoid type class by Jonathan Knowles

Version 1.2.2

• Added Data.Monoid.LCM module with LCMMonoid type class by Jonathan Knowles
• Repaired links to Hackage within README.md by Jonathan Knowles

Version 1.2.1

• Fix for the Monus instance for Maybe by Jonathan Knowles

Version 1.2

• Dropped support for GHC < 8.4
• Depending on new commutative-semigroups package
• Modified the instance OverlappingMonoid/Monus Map/IntMap instances to conform with the class laws
• Bumped the vector dependency upper bounds

Version 1.1.4

• Canonicalized all mappend definitions
• Added deriving (Data, Typeable) to all data types

Version 1.1.3

• Support for text-2.0 by Bodigrim

Version 1.1.2

• CI tests
• Fallback implementation of stripCommonSuffix @Text for GHCjs by Jack Kelly
• Fixed documentation bug #31, Factorial laws too strong

Version 1.1.1

• Fixed compilation with GHC 8.0.2
• Positioned doesn't use a column for zero-width characters any more

Version 1.1

• Added a new TextualMonoid method toText for performance
• Fixed the calculations of column of LinePositioned
• Changed the column of LinePositioned to be one-based
• LinePositioned now treats FF, CR, and TAB characters as special, in accordance with Haskell language specification.

Version 1.0.1

• Incremented the lower bound of the base dependency
• Fixed Haddock links

Version 1.0

• Fixed issue #24, unlawful LeftReductiveMonoid instance for Map
• Tightened the laws of GCD classes, dropped instances for Sum and Product
• Introduced the Monus class
• Introduced the OverlappingGCDMonoid class
• Added the instances of type Sum Natural and Product Natural
• Using the language extensions FlexibleInstances and OverlappingInstances
• Removed the linear complexity requirement
• Added and documented less efficient instances
• Moved various GCD classes into the new module Data.Monoid.GCD
• Added module Data.Semigroup.Cancellative with Semigroup subclasses
• Added module Data.Semigroup.Factorial with Semigroup subclasses
• Deprecated several Monoid subclasses and made them constraint synonyms instead:
  • type CommutativeMonoid m = (Monoid m, Commutative m)
  • type ReductiveMonoid m = (Monoid m, Reductive m)
  • type LeftReductiveMonoid m = (Monoid m, LeftReductive m)
  • type RightReductiveMonoid m = (Monoid m, RightReductive m)
  • type CancellativeMonoid m = (Monoid m, Cancellative m)
  • type LeftCancellativeMonoid m = (Monoid m, LeftCancellative m)
  • type RightCancellativeMonoid m = (Monoid m, RightCancellative m)

Version 0.4.6.1

Bumped the containers dependency upper bounds

Version 0.4.6

Added the Semigroup instances to fix the compilation errors with base-4.11

Version 0.4.4

Fixed boundary condition bugs in ByteStringUTF8 uncovered by a new version of QuickCheck

Version 0.4.3.2

Fixed compilation errors with GHC 7.8.4 and older

Version 0.4.3.1

Bumped the vector dependency upper bounds

Version 0.4.3

• Added instances for 3- and 4-tuples
• Re-implemented Concat as an own data type, dropping Seq

Version 0.4.2.1

• Fixed compilation problems with GHC 8 and containers-0.5.7
• Fixed compilation problems with GHC 8 and containers-0.5.7
• Merge pull request #10 from mgiles: minor typo in FactorialMonoid laws

Version 0.4.2

• Fixed a bug in splitAt implementation for ByteStringUTF8
• Merge pull request #9 from phadej: use newest quickcheck-instances
• Removed the overzealous assertions from ByteStringUTF8

Version 0.4.1.2

Removing accidental reference to Instances.Markup module

Version 0.4.1.1

• Bumped the vector dependency upper bounds
• Removed GHC-prof-options from the cabal file

Version 0.4.1

• Changed the Prelude imports to enable compilation with GHC 7.4
• Added INLINE pragmas
• Added the toString method to TextualMonoid class
• Importing Text.Show.Functions to avoid overlapping instances
• Eliminated the redundant import warnings from GHC 7.10.1

Version 0.4.0.4

• Added -Wall GHC option and eliminated almost all the warnings
• Fixed a bug in the Textual instance of ByteStringUTF8

Version 0.4.0.3

• Excluding the imports of foldMap from Prelude

Version 0.4.0.2

• Added more tests and fixed a bug in Stateful
• Fixed a bug in Positioned.span_
• Optimized the Stateful data type

Version 0.3.6.2

• Added a bunch of pragmas

Version 0.3.6

• Deprecated all the inject functions
• Registered the new Stateful module

Version 0.3.4.1

Accommodating the text-1.0 release

• Introduced the function ByteStringUTF8.decode
• Removed the utf-string dependency
• Replaced the utf-string import by a more efficient UTF-8 encoding

Version 0.3.1

• Added the Data.Monoid.Instances.Concat module and tests
• Added the PositiveMonoid class
• Added the StableFactorialMonoid subclass of FactorialMonoid
• Added more instances for ()

Version 0.3

Added the CommutativeMonoid class at the root of the Cancellative classes

Version 0.2

• Added TextualMonoid instances for Seq Char and Vector Char
• Renamed the FactorialMonoid method map to foldMap in keeping with Foldable

Version 0.1.2

Optimizations of the default Factorial methods and of the ButeStringUTF8 instances

Version 0.1

Initial release