Update Rust crate tokio to 1.48.0

[nextest-bot]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dev-dependencies	minor	1.38.2 -> 1.48.0

---

Release Notes

tokio-rs/tokio (tokio)

v1.48.0: Tokio v1.48.0

Compare Source

1.48.0 (October 14th, 2025)

The MSRV is increased to 1.71.

Added

• fs: add File::max_buf_size (#​7594)
• io: export Chain of AsyncReadExt::chain (#​7599)
• net: add SocketAddr::as_abstract_name (#​7491)
• net: add TcpStream::quickack and TcpStream::set_quickack (#​7490)
• net: implement AsRef<Self> for TcpStream and UnixStream (#​7573)
• task: add LocalKey::try_get (#​7666)
• task: implement Ord for task::Id (#​7530)

Changed

• deps: bump windows-sys to version 0.61 (#​7645)
• fs: preserve max_buf_size when cloning a File (#​7593)
• macros: suppress clippy::unwrap_in_result in #[tokio::main] (#​7651)
• net: remove PollEvented noise from Debug formats (#​7675)
• process: upgrade Command::spawn_with to use FnOnce (#​7511)
• sync: remove inner mutex in SetOnce (#​7554)
• sync: use UnsafeCell::get_mut in Mutex::get_mut and RwLock::get_mut (#​7569)
• time: reduce the generated code size of Timeout<T>::poll (#​7535)

Fixed

• macros: fix hygiene issue in join! and try_join! (#​7638)
• net: fix copy/paste errors in udp peek methods (#​7604)
• process: fix error when runtime is shut down on nightly-2025-10-12 (#​7672)
• runtime: use release ordering in wake_by_ref() even if already woken (#​7622)
• sync: close the broadcast::Sender in broadcast::Sender::new() (#​7629)
• sync: fix implementation of unused RwLock::try_* methods (#​7587)

Unstable

• tokio: use cargo features instead of --cfg flags for taskdump and io_uring (#​7655, #​7621)
• fs: support io_uring in fs::write (#​7567)
• fs: support io_uring with File::open() (#​7617)
• fs: support io_uring with OpenOptions (#​7321)
• macros: add local runtime flavor (#​7375, #​7597)

Documented

• io: clarify the zero capacity case of AsyncRead::poll_read (#​7580)
• io: fix typos in the docs of AsyncFd readiness guards (#​7583)
• net: clarify socket gets closed on drop (#​7526)
• net: clarify the behavior of UCred::pid() on Cygwin (#​7611)
• net: clarify the supported platform of set_reuseport() and reuseport() (#​7628)
• net: qualify that SO_REUSEADDR is only set on Unix (#​7533)
• runtime: add guide for choosing between runtime types (#​7635)
• runtime: clarify the behavior of Handle::block_on (#​7665)
• runtime: clarify the edge case of Builder::global_queue_interval() (#​7605)
• sync: clarify bounded channel panic behavior (#​7641)
• sync: clarify the behavior of tokio::sync::watch::Receiver (#​7584)
• sync: document cancel safety on SetOnce::wait (#​7506)
• sync: fix the docs of parking_lot feature flag (#​7663)
• sync: improve the docs of UnboundedSender::send (#​7661)
• sync: improve the docs of sync::watch (#​7601)
• sync: reword allocation failure paragraph in broadcast docs (#​7595)
• task: clarify the behavior of several spawn_local methods (#​7669)
• task: clarify the task ID reuse guarantees (#​7577)
• task: improve the example of poll_proceed (#​7586)

v1.47.2

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v1.47.1: Tokio v1.47.1

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1.47.1 (August 1st, 2025)

Fixed

• process: fix panic from spurious pidfd wakeup (#​7494)
• sync: fix broken link of Python asyncio.Event in SetOnce docs (#​7485)

v1.47.0: Tokio v1.47.0

Compare Source

1.47.0 (July 25th, 2025)

This release adds poll_proceed and cooperative to the coop module for
cooperative scheduling, adds SetOnce to the sync module which provides
similar functionality to [std::sync::OnceLock], and adds a new method
sync::Notify::notified_owned() which returns an OwnedNotified without
a lifetime parameter.

Added

• coop: add cooperative and poll_proceed (#​7405)
• sync: add SetOnce (#​7418)
• sync: add sync::Notify::notified_owned() (#​7465)

Changed

• deps: upgrade windows-sys 0.52 → 0.59 ([#​7117])
• deps: update to socket2 v0.6 ([#​7443])
• sync: improve AtomicWaker::wake performance (#​7450)

Documented

• metrics: fix listed feature requirements for some metrics (#​7449)
• runtime: improve safety comments of Readiness<'_> (#​7415)

v1.46.1: Tokio v1.46.1

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1.46.1 (July 4th, 2025)

This release fixes incorrect spawn locations in runtime task hooks for tasks spawned using tokio::spawn rather than Runtime::spawn. This issue only effected the spawn location in TaskMeta::spawned_at, and did not effect task locations in Tracing events.

Unstable

• runtime: add TaskMeta::spawn_location tracking where a task was spawned (#​7440)

v1.46.0: Tokio v1.46.0

Compare Source

1.46.0 (July 2nd, 2025)

Fixed

• net: fixed TcpStream::shutdown incorrectly returning an error on macOS (#​7290)

Added

• sync: mpsc::OwnedPermit::{same_channel, same_channel_as_sender} methods (#​7389)
• macros: biased option for join! and try_join!, similar to select! (#​7307)
• net: support for cygwin (#​7393)
• net: support pope::OpenOptions::read_write on Android (#​7426)
• net: add Clone implementation for net::unix::SocketAddr (#​7422)

Changed

• runtime: eliminate unnecessary lfence while operating on queue::Local<T> (#​7340)
• task: disallow blocking in LocalSet::{poll,drop} (#​7372)

Unstable

• runtime: add TaskMeta::spawn_location tracking where a task was spawned (#​7417)
• runtime: removed borrow from LocalOptions parameter to runtime::Builder::build_local (#​7346)

Documented

• io: clarify behavior of seeking when start_seek is not used (#​7366)
• io: document cancellation safety of AsyncWriteExt::flush (#​7364)
• net: fix docs for recv_buffer_size method (#​7336)
• net: fix broken link of RawFd in TcpSocket docs (#​7416)
• net: update AsRawFd doc link to current Rust stdlib location (#​7429)
• readme: fix double period in reactor description (#​7363)
• runtime: add doc note that on_*_task_poll is unstable (#​7311)
• sync: update broadcast docs on allocation failure (#​7352)
• time: add a missing panic scenario of time::advance (#​7394)

v1.45.1: Tokio v1.45.1

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1.45.1 (May 24th, 2025)

This fixes a regression on the wasm32-unknown-unknown target, where code that previously did not panic due to calls to Instant::now() started failing. This is due to the stabilization of the first time-based metric.

Fixed

• Disable time-based metrics on wasm32-unknown-unknown (#​7322)

v1.45.0: Tokio v1.45.0

Compare Source

Added

• metrics: stabilize worker_total_busy_duration, worker_park_count, and worker_unpark_count (#​6899, #​7276)
• process: add Command::spawn_with (#​7249)

Changed

• io: do not require Unpin for some trait impls (#​7204)
• rt: mark runtime::Handle as unwind safe (#​7230)
• time: revert internal sharding implementation (#​7226)

Unstable

• rt: remove alt multi-threaded runtime (#​7275)

v1.44.2: Tokio v1.44.2

Compare Source

This release fixes a soundness issue in the broadcast channel. The channel
accepts values that are Send but !Sync. Previously, the channel called
clone() on these values without synchronizing. This release fixes the channel
by synchronizing calls to .clone() (Thanks Austin Bonander for finding and
reporting the issue).

Fixed

• sync: synchronize clone() call in broadcast channel (#​7232)

v1.44.1: Tokio v1.44.1

Compare Source

1.44.1 (March 13th, 2025)

Fixed

• rt: skip defer queue in block_in_place context (#​7216)

v1.44.0: Tokio v1.44.0

Compare Source

1.44.0 (March 7th, 2025)

This release changes the from_std method on sockets to panic if a blocking socket is provided. We determined this change is not a breaking change as Tokio is not intended to operate using blocking sockets. Doing so results in runtime hangs and should be considered a bug. Accidentally passing a blocking socket to Tokio is one of the most common user mistakes. If this change causes an issue for you, please comment on #​7172.

Added

• coop: add task::coop module (#​7116)
• process: add Command::get_kill_on_drop() (#​7086)
• sync: add broadcast::Sender::closed (#​6685, #​7090)
• sync: add broadcast::WeakSender (#​7100)
• sync: add oneshot::Receiver::is_empty() (#​7153)
• sync: add oneshot::Receiver::is_terminated() (#​7152)

Fixed

• fs: empty reads on File should not start a background read (#​7139)
• process: calling start_kill on exited child should not fail (#​7160)
• signal: fix CTRL_CLOSE, CTRL_LOGOFF, CTRL_SHUTDOWN on windows (#​7122)
• sync: properly handle panic during mpsc drop (#​7094)

Changes

• runtime: clean up magic number in registration set (#​7112)
• coop: make coop yield using waker defer strategy (#​7185)
• macros: make select! budget-aware (#​7164)
• net: panic when passing a blocking socket to from_std (#​7166)
• io: clean up buffer casts (#​7142)

Changes to unstable APIs

• rt: add before and after task poll callbacks (#​7120)
• tracing: make the task tracing API unstable public (#​6972)

Documented

• docs: fix nesting of sections in top-level docs (#​7159)
• fs: rename symlink and hardlink parameter names (#​7143)
• io: swap reader/writer in simplex doc test (#​7176)
• macros: docs about select! alternatives (#​7110)
• net: rename the argument for send_to (#​7146)
• process: add example for reading Child stdout (#​7141)
• process: clarify Child::kill behavior (#​7162)
• process: fix grammar of the ChildStdin struct doc comment (#​7192)
• runtime: consistently use worker_threads instead of core_threads (#​7186)

v1.43.3

Compare Source

v1.43.2: Tokio v1.43.2

Compare Source

1.43.2 (August 1st, 2025)

Fixed

• process: fix panic from spurious pidfd wakeup (#​7494)

v1.43.1

Compare Source

v1.43.0: Tokio v1.43.0

Compare Source

1.43.0 (Jan 8th, 2025)

Added

• net: add UdpSocket::peek methods (#​7068)
• net: add support for Haiku OS (#​7042)
• process: add Command::into_std() (#​7014)
• signal: add SignalKind::info on illumos (#​6995)
• signal: add support for realtime signals on illumos (#​7029)

Fixed

• io: don't call set_len before initializing vector in Blocking (#​7054)
• macros: suppress clippy::needless_return in #[tokio::main] (#​6874)
• runtime: fix thread parking on WebAssembly (#​7041)

Changes

• chore: use unsync loads for unsync_load (#​7073)
• io: use Buf::put_bytes in Repeat read impl (#​7055)
• task: drop the join waker of a task eagerly (#​6986)

Changes to unstable APIs

• metrics: improve flexibility of H2Histogram Configuration (#​6963)
• taskdump: add accessor methods for backtrace (#​6975)

Documented

• io: clarify ReadBuf::uninit allows initialized buffers as well (#​7053)
• net: fix ambiguity in TcpStream::try_write_vectored docs (#​7067)
• runtime: fix LocalRuntime doc links (#​7074)
• sync: extend documentation for watch::Receiver::wait_for (#​7038)
• sync: fix typos in OnceCell docs (#​7047)

v1.42.1: Tokio v1.42.1

Compare Source

This release fixes a soundness issue in the broadcast channel. The channel accepts values that are Send but !Sync. Previously, the channel called clone() on these values without synchronizing. This release fixes the channel by synchronizing calls to .clone() (Thanks Austin Bonander for finding and reporting the issue).

Fixed

• sync: synchronize clone() call in broadcast channel (#​7232)

v1.42.0: Tokio v1.42.0

Compare Source

1.42.0 (Dec 3rd, 2024)

Added

• io: add AsyncFd::{try_io, try_io_mut} (#​6967)

Fixed

• io: avoid ptr->ref->ptr roundtrip in RegistrationSet (#​6929)
• runtime: do not defer yield_now inside block_in_place (#​6999)

Changes

• io: simplify io readiness logic (#​6966)

Documented

• net: fix docs for tokio::net::unix::{pid_t, gid_t, uid_t} (#​6791)
• time: fix a typo in Instant docs (#​6982)

v1.41.1: Tokio v1.41.1

Compare Source

1.41.1 (Nov 7th, 2024)

Fixed

• metrics: fix bug with wrong number of buckets for the histogram (#​6957)
• net: display net requirement for net::UdpSocket in docs (#​6938)
• net: fix typo in TcpStream internal comment (#​6944)

v1.41.0: Tokio v1.41.0

Compare Source

1.41.0 (Oct 22th, 2024)

Added

• metrics: stabilize global_queue_depth (#​6854, #​6918)
• net: add conversions for unix SocketAddr (#​6868)
• sync: add watch::Sender::sender_count (#​6836)
• sync: add mpsc::Receiver::blocking_recv_many (#​6867)
• task: stabilize Id apis (#​6793, #​6891)

Added (unstable)

• metrics: add H2 Histogram option to improve histogram granularity (#​6897)
• metrics: rename some histogram apis (#​6924)
• runtime: add LocalRuntime (#​6808)

Changed

• runtime: box futures larger than 16k on release mode (#​6826)
• sync: add #[must_use] to Notified (#​6828)
• sync: make watch cooperative (#​6846)
• sync: make broadcast::Receiver cooperative (#​6870)
• task: add task size to tracing instrumentation (#​6881)
• wasm: enable cfg_fs for wasi target (#​6822)

Fixed

• net: fix regression of abstract socket path in unix socket (#​6838)

Documented

• io: recommend OwnedFd with AsyncFd (#​6821)
• io: document cancel safety of AsyncFd methods (#​6890)
• macros: render more comprehensible documentation for join and try_join (#​6814, #​6841)
• net: fix swapped examples for TcpSocket::set_nodelay and TcpSocket::nodelay (#​6840)
• sync: document runtime compatibility (#​6833)

v1.40.0: Tokio v1.40.0

Compare Source

1.40.0 (August 30th, 2024)

Added

• io: add util::SimplexStream (#​6589)
• process: stabilize Command::process_group (#​6731)
• sync: add {TrySendError,SendTimeoutError}::into_inner (#​6755)
• task: add JoinSet::join_all (#​6784)

Added (unstable)

• runtime: add Builder::{on_task_spawn, on_task_terminate} (#​6742)

Changed

• io: use vectored io for write_all_buf when possible (#​6724)
• runtime: prevent niche-optimization to avoid triggering miri (#​6744)
• sync: mark mpsc types as UnwindSafe (#​6783)
• sync,time: make Sleep and BatchSemaphore instrumentation explicit roots (#​6727)
• task: use NonZeroU64 for task::Id (#​6733)
• task: include panic message when printing JoinError (#​6753)
• task: add #[must_use] to JoinHandle::abort_handle (#​6762)
• time: eliminate timer wheel allocations (#​6779)

Documented

• docs: clarify that [build] section doesn't go in Cargo.toml (#​6728)
• io: clarify zero remaining capacity case (#​6790)
• macros: improve documentation for select! (#​6774)
• sync: document mpsc channel allocation behavior (#​6773)

v1.39.3: Tokio v1.39.3

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1.39.3 (August 17th, 2024)

This release fixes a regression where the unix socket api stopped accepting the abstract socket namespace. (#​6772)

v1.39.2: Tokio v1.39.2

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1.39.2 (July 27th, 2024)

This release fixes a regression where the select! macro stopped accepting expressions that make use of temporary lifetime extension. (#​6722)

v1.39.1: Tokio v1.39.1

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1.39.1 (July 23rd, 2024)

This release reverts "time: avoid traversing entries in the time wheel twice" because it contains a bug. (#​6715)

v1.39.0: Tokio v1.39.0

Compare Source

1.39.0 (July 23rd, 2024)

• This release bumps the MSRV to 1.70. (#​6645)
• This release upgrades to mio v1. (#​6635)
• This release upgrades to windows-sys v0.52 (#​6154)

Added

• io: implement AsyncSeek for Empty (#​6663)
• metrics: stabilize num_alive_tasks (#​6619, #​6667)
• process: add Command::as_std_mut (#​6608)
• sync: add watch::Sender::same_channel (#​6637)
• sync: add {Receiver,UnboundedReceiver}::{sender_strong_count,sender_weak_count} (#​6661)
• sync: implement Default for watch::Sender (#​6626)
• task: implement Clone for AbortHandle (#​6621)
• task: stabilize consume_budget (#​6622)

Changed

• io: improve panic message of ReadBuf::put_slice() (#​6629)
• io: read during write in copy_bidirectional and copy (#​6532)
• runtime: replace num_cpus with available_parallelism (#​6709)
• task: avoid stack overflow when passing large future to block_on (#​6692)
• time: avoid traversing entries in the time wheel twice (#​6584)
• time: support IntoFuture with timeout (#​6666)
• macros: support IntoFuture with join! and select! (#​6710)

Fixed

• docs: fix docsrs builds with the fs feature enabled (#​6585)
• io: only use short-read optimization on known-to-be-compatible platforms (#​6668)
• time: fix overflow panic when using large durations with Interval (#​6612)

Added (unstable)

• macros: allow unhandled_panic behavior for #[tokio::main] and #[tokio::test] (#​6593)
• metrics: add spawned_tasks_count (#​6114)
• metrics: add worker_park_unpark_count (#​6696)
• metrics: add worker thread id (#​6695)

Documented

• io: update tokio::io::stdout documentation (#​6674)
• macros: typo fix in join.rs and try_join.rs (#​6641)
• runtime: fix typo in unhandled_panic (#​6660)
• task: document behavior of JoinSet::try_join_next when all tasks are running (#​6671)

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