2.13.0-rc.4

How to install:

npm install fp-ts@rc

• Polish
  • backport from v3 some handy defaults defined in natural transformations, kleisli arrows helpers, of functions (@gcanti)
  • Either
    • remove useless type parameter in exists (@gcanti)
  • TaskEither
    • fix fromPredicate signature (@gcanti)
  • These
    • add missing fromPredicate (@gcanti)
    • remove useless type parameter in exists (@gcanti)