« Changelog History


async-std v1.9.0 Release Notes

Release Date: 2021-01-15 // over 3 years ago

  • 🚚 This patch stabilizes the async_std::channel submodule, removes the 🔀 deprecated sync::channel types, and introduces the tokio1 feature.

    🆕 New Channels

    🚀 As part of our 1.8.0 release last month we introduced the new 🗄 async_std::channel submodule and deprecated the unstable 🔀 async_std::sync::channel types. You can read our full motiviation for this 🔄 change in the last patch notes. But the short version is that the old 🔀 channels had some fundamental problems, and the sync submodule is a bit of a mess.

    🚀 This release of async-std promotes async_std::channel to stable, and 🔀 fully removes the async_std::sync::channel types. In practice many ⬆️ libraries have already been upgraded to the new channels in the past month, and this will enable much of the ecosystem to switch off "unstable" versions of async-std.

    use async_std::channel;

let (sender, receiver) = channel::unbounded();

assert_eq!(sender.send("Hello").await, Ok(()));
assert_eq!(receiver.recv().await, Ok("Hello"));

    Tokio 1.0 compat

    🚀 The Tokio project recently released version 1.0 of their runtime, and the async-std team would like to congratulate the Tokio team on achieving this milestone.

    🚀 This release of async-std adds the tokio1 feature flag, enabling Tokio's TLS constructors to be initialized within the async-std runtime. This is in ➕ addition to the tokio02 and tokio03 feature flags which we were already exposing.

    In terms of stability it's worth noting that we will continue to provide 👌 support for the tokio02, tokio03, and tokio1 on the current major 🚀 release line of async-std. These flags are part of our public API, and 👍 removing compat support for older Tokio versions is considered a breaking 🔄 change.

    ➕ Added

    • ➕ Added the tokio1 feature (#924)
    • Stabilized the async_std::channel submodule (#934)

    ✂ Removed

    • ✂ Removed deprecated sync::channel (#933)

    🛠 Fixed

    • 🛠 Fixed a typo for [sic] FuturesExt trait (#930)
    • ⚡️ Update the link to cargo-edit in the installation section of the docs (#932)
    • 🛠 Fixed a small typo for stream (#926)

    Internal

    • ⚡️ Updated rand to 0.8 (#923)
    • 🔒 Migrated RwLock and Barrier to use the async-lock crate internally (#925)
    • Replaced uses of deprecated the compare_and_swap method with compare_exchange (#927)