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Releases: funcool/cats

2.3.0: Re-add state monad (#210)

29 Aug 21:49
@sovelten sovelten
2.3.0
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* re-add state monad
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2.0.0

28 Jul 18:40
@niwinz niwinz
2.0.0
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niwinz Andrey Antukh
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2.0.0

This version intend to clean the library from unused and out of context stuff
and leave only the useful abstractions. This is a list of main changes (mostly
breaking):

  • Removed support for monad transformers. They add too many complex to the
    implementation but in return adds very low value in context of dynamic
    languages as is clojure.
  • Removed state, writer, reader and continuation monad namespaces. They are not
    very useful in clojure so having them without any particular usefulness it not
    make sense.
  • Removed cats.applicative namespace because it is too many opinionated and
    not really useful in the real world. The use case vary depending on when that
    abstraction is used so we encourage users to define their own abstraction with
    specific behavior for their application.
  • Removed CRDT's labs. It was an experiment and the final sensacion is that is
    not very useful and in most circumstances the users defines their own
    datastructures instead of rely on ones from third party packages. So,
    maintaining them in the code base also does not make sense
  • Removed lens and traversals namespaces. The first one becomes very useful
    and is properly externalized as separated package. The last one, seems
    like it is not very useful and seems out of context of cats library. If anyone
    is interested in maintaining it, the code can be extracted from the previos
    git revisions and released as separated library.
  • Move cats.labs.sugar into cats.core namespace (cats.labs.sugar ns is
    removed)

And a list of other changes and contributions:

  • PersistentListq support in sequence context (@muhuk)
  • Rewrite cats.labs.channel integration with core.async combinators
    (@yanatan16)
  • Add cats.builtin.lazy-sequence-context (@muhuk)
  • Fix bug in sequence context's fapply implementation (@muhuk)
  • Performance improvements in sequence context implementation (@muhuk)
  • Add cats.monad.either/try-either macro for capturing exceptions as left, values
    as right (@shmish111)
  • Move promesa.monad namespace under cats.labs.promise ns.
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