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polysemy v0.5.0.0 Release Notes

Release Date: 2019-06-26 // almost 5 years ago

  • 💥 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