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ChangeLog.md

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Changelog for polysemy

0.5.1.0 (2019-06-28)

  • New combinators for Polysemy.Error: fromEither and fromEitherM

0.5.0.1 (2019-06-27)

  • Fixed a bug where intercept and interceptH wouldn't correctly handle higher-order effects

0.5.0.0 (2019-06-26)

Breaking Changes

  • Removed the internal Effect machinery

New Effects and Interpretations

  • New effect; Async, for describing asynchronous computations
  • New interpretation for Resource: runResourceBase, which can lower Resource effects without giving a lowering natural transformation
  • New interpretation for Trace: runTraceAsList
  • New combinator: withLowerToIO, which is capable of transforming IO-invariant functions as effects.

Other Changes

  • Lots of hard work on the package and CI infrastructure to make it green on GHC 8.4.4 (thanks to @jkachmar)
  • Changed the order of the types for runMonadicInput to be more helpful (thanks to @tempname11)
  • Improved the error machinery to be more selective about when it runs
  • Factored out the TH into a common library for third-party consumers

0.4.0.0 (2019-06-12)

Breaking Changes

  • Renamed runResource to runResourceInIO

Other Changes

  • Added runResource, which runs a Resource purely
  • Added onException, finally and bracketOnError to Resource
  • Added a new function, runResource which performs bracketing for pure code

0.3.0.1 (2019-06-09)

  • Fixed a type error in the benchmark caused by deprecation of Semantic

0.3.0.0 (2019-06-01)

Breaking Changes

  • Removed all deprecated names
  • Moved Random effect to polysemy-zoo

Other Changes

  • makeSem can now be used to create term-level operators (thanks to @TheMatten)

0.2.2.0 (2019-05-30)

  • Added getInspectorT to the Tactical functions, which allows polysemy code to be run in external callbacks
  • A complete rewrite of Polysemy.Internal.TH.Effect (thanks to @TheMatten)
  • Fixed a bug in the TH generation of effects where the splices could contain usages of effects that were ambiguous

0.2.1.0 (2019-05-27)

  • Fixed a bug in the Alternative instance for Sem, where it would choose the last success instead of the first
  • Added MonadPlus and MonadFail instances for Sem

0.2.0.0 (2019-05-23)

Breaking Changes

  • Lower precedence of .@ and .@@ to 8, from 9

Other Changes

  • Fixed a serious bug in interpretH and friends, where higher-order effects would always be run with the current interpreter.
  • Users need no longer require inlineRecursiveCalls --- the polysemy-plugin-0.2.0.0 will do it automatically when compiling with -O
  • Deprecated inlineRecursiveCalls; slated for removal in the next version

0.1.2.1 (2019-05-18)

  • Give explicit package bounds for dependencies
  • Haddock improvements
  • Remove Typeable machinery from Polysemy.Internal.Union (thanks to @googleson78)

0.1.2.0 (2019-04-26)

  • runInputAsReader, runTraceAsOutput and runOutputAsWriter have more generalized types
  • Added runStateInIO
  • Added runOutputAsTrace
  • Added Members (thanks to @TheMatten)

0.1.1.0 (2019-04-14)

  • Added runIO interpretation (thanks to @adamConnerSax)
  • Minor documentation fixes

0.1.0.0 (2019-04-11)

  • Initial release

Unreleased changes