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streamly v0.3.0 Release Notes

Release Date: 2018-06-01 // almost 6 years ago

  • 💥 Breaking changes

    • Some prelude functions, to whom concurrency capability has been added, will now require a MonadAsync constraint.

    🐛 Bug Fixes

    • 🛠 Fixed a race due to which, in a rare case, we might block indefinitely on an MVar due to a lost wakeup.
    • 🛠 Fixed an issue in adaptive concurrency. The issue caused us to stop creating more worker threads in some cases due to a race. This bug would not cause any functional issue but may reduce concurrency in some cases.

    ✨ Enhancements

    • ➕ Added a concurrent lookahead stream type Ahead
    • ➕ Added fromFoldableM API that creates a stream from a container of monadic actions
    • Monadic stream generation functions consM, |:, unfoldrM, replicateM, repeatM, iterateM and fromFoldableM can now generate streams concurrently when used with concurrent stream types.
    • Monad transformation functions mapM and sequence can now map actions concurrently when used at appropriate stream types.
    • ➕ Added concurrent function application operators to run stages of a stream processing function application pipeline concurrently.
    • ➕ Added mapMaybe and mapMaybeM.