2.13.1

• New Feature
  • new modules:
    • ReaderIO, #1738 (@sukovanej)
  • do notation:
    • add let helpers, #1725 (@Punie)
  • Alternative
    • add getAlternativeMonoid, #1717 (@willheslam)
  • function
    • flip is now curried, #1748 (@thewilkybarkid)
  • pipeable
    • add pipeable helpers, #1764 (@gcanti)
      • alt
      • ap
      • bimap
      • chain
      • compose
      • contramap
      • extend
      • filter
      • filterMap
      • filterMapWithIndex
      • filterWithIndex
      • foldMap
      • foldMapWithIndex
      • map
      • mapLeft
      • mapWithIndex
      • partition
      • partitionMap
      • partitionMapWithIndex
      • partitionWithIndex
      • promap
      • reduce
      • reduceRight
      • reduceRightWithIndex
      • reduceWithIndex
  • ReaderTask
    • add ReaderIO constructors/combinators, #1773 (@thewilkybarkid)
  • ReaderTaskEither
    • add ReaderIO constructors/combinators, #1774 (@thewilkybarkid)
  • TaskEither
    • add chainTaskOptionKW, #1744 (@AmirabbasJ)
• Polish
  • backport from v3 some handy defaults defined in natural transformations/combinators/constructors (@gcanti)
  • fix wrong type parameter order:
    • FromIO
      • chainIOK
    • FromTask
      • chainTaskK
      • chainFirstTaskK
    • Whiterable
      • FilterE1
    • TheseT
      • both
    • Either
      • apFirstW
      • apSecondW
    • IOEither
      • apFirstW
      • apSecondW
    • Reader
      • apFirstW
      • apSecondW
    • ReaderEither
      • apFirstW
      • apSecondW
    • ReaderTaskEither
      • apFirstW
      • apSecondW
    • StateReaderTaskEither
      • apFirstW
      • apSecondW
    • TaskEither
      • apFirstW
      • apSecondW
  • Apply
    • add ap overloadings, #1721 (@waynevanson)
  • Either
    • remove useless type parameter in exists (@gcanti)
  • ReadonlyRecord
    • fix fromEntries return type, closes #1745 (@gcanti)
  • TaskEither
    • fix fromPredicate signature (@gcanti)
  • These
    • add missing fromPredicate (@gcanti)
    • remove useless type parameter in exists (@gcanti)
  • Traversable
    • add more overloadings to traverse / sequence helpers, #1758 (@gcanti)
  • Writer
    • getChain requires a Semigroup instead of a Monoid (@gcanti)
• Deprecation
  • function
    • deprecate uncurried flip function, #1748 (@thewilkybarkid)