chore(deps): update rust crate tokio to v1.52.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dependencies	minor	1.43.0 → 1.52.0

---

Release Notes

tokio-rs/tokio (tokio)

v1.52.0: Tokio v1.52.0

Compare Source

1.52.0 (April 14th, 2026)

Added

• io: AioSource::register_borrowed for I/O safety support (#​7992)
• net: add try_io function to unix::pipe sender and receiver types (#​8030)

Added (unstable)

• runtime: Builder::enable_eager_driver_handoff setting enable eager hand off of the I/O and time drivers before polling tasks (#​8010)
• taskdump: add trace_with() for customized task dumps (#​8025)
• taskdump: allow impl FnMut() in trace_with instead of just fn() (#​8040)
• fs: support io_uring in AsyncRead for File (#​7907)

Changed

• runtime: improve spawn_blocking scalability with sharded queue (#​7757)
• runtime: use compare_exchange_weak() in worker queue (#​8028)

Fixed

• runtime: overflow second half of tasks when local queue is filled instead of first half (#​8029)

Documented

• docs: fix typo in oneshot::Sender::send docs (#​8026)
• docs: hide #[tokio::main] attribute in the docs of sync::watch (#​8035)
• net: add docs on ConnectionRefused errors with UDP sockets (#​7870)

v1.51.1: Tokio v1.51.1

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1.51.1 (April 8th, 2026)

Fixed

• sync: fix semaphore reopens after forget (#​8021)
• net: surface errors from SO_ERROR on recv for UDP sockets on Linux (#​8001)

Fixed (unstable)

• metrics: fix worker_local_schedule_count test (#​8008)
• rt: do not leak fd when cancelling io_uring open operation (#​7983)

v1.51.0: Tokio v1.51.0

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1.51.0 (April 3rd, 2026)

Added

• net: implement get_peer_cred on Hurd (#​7989)
• runtime: add tokio::runtime::worker_index() (#​7921)
• runtime: add runtime name (#​7924)
• runtime: stabilize LocalRuntime (#​7557)
• wasm: add wasm32-wasip2 networking support (#​7933)

Changed

• runtime: steal tasks from the LIFO slot (#​7431)

Fixed

• docs: do not show "Available on non-loom only." doc label (#​7977)
• macros: improve overall macro hygiene (#​7997)
• sync: fix notify_waiters priority in Notify (#​7996)
• sync: fix panic in Chan::recv_many when called with non-empty vector on closed channel (#​7991)

v1.50.0: Tokio v1.50.0

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1.50.0 (Mar 3rd, 2026)

Added

• net: add TcpStream::set_zero_linger (#​7837)
• rt: add is_rt_shutdown_err (#​7771)

Changed

• io: add optimizer hint that memchr returns in-bounds pointer (#​7792)
• io: implement vectored writes for write_buf (#​7871)
• runtime: panic when event_interval is set to 0 (#​7838)
• runtime: shorten default thread name to fit in Linux limit (#​7880)
• signal: remember the result of SetConsoleCtrlHandler (#​7833)
• signal: specialize windows Registry (#​7885)

Fixed

• io: always cleanup AsyncFd registration list on deregister (#​7773)
• macros: remove (most) local use declarations in tokio::select! (#​7929)
• net: fix GET_BUF_SIZE constant for target_os = "android" (#​7889)
• runtime: avoid redundant unpark in current_thread scheduler (#​7834)
• runtime: don't park in current_thread if before_park defers waker (#​7835)
• io: fix write readiness on ESP32 on short writes (#​7872)
• runtime: wake deferred tasks before entering block_in_place (#​7879)
• sync: drop rx waker when oneshot receiver is dropped (#​7886)
• runtime: fix double increment of num_idle_threads on shutdown (#​7910, #​7918, #​7922)

Unstable

• fs: check for io-uring opcode support (#​7815)
• runtime: avoid lock acquisition after uring init (#​7850)

Documented

• docs: update outdated unstable features section (#​7839)
• io: clarify the behavior of AsyncWriteExt::shutdown() (#​7908)
• io: explain how to flush stdout/stderr (#​7904)
• io: fix incorrect and confusing AsyncWrite documentation (#​7875)
• rt: clarify the documentation of Runtime::spawn (#​7803)
• rt: fix missing quotation in docs (#​7925)
• runtime: correct the default thread name in docs (#​7896)
• runtime: fix event_interval doc (#​7932)
• sync: clarify RwLock fairness documentation (#​7919)
• sync: clarify that recv returns None once closed and no more messages (#​7920)
• task: clarify when to use spawn_blocking vs dedicated threads (#​7923)
• task: doc that task drops before JoinHandle completion (#​7825)
• signal: guarantee that listeners never return None (#​7869)
• task: fix task module feature flags in docs (#​7891)
• task: fix two typos (#​7913)
• task: improve the docs of Builder::spawn_local (#​7828)
• time: add docs about auto-advance and when to use sleep (#​7858)
• util: fix typo in docs (#​7926)

v1.49.0: Tokio v1.49.0

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1.49.0 (January 3rd, 2026)

Added

• net: add support for TCLASS option on IPv6 (#​7781)
• runtime: stabilize runtime::id::Id (#​7125)
• task: implement Extend for JoinSet (#​7195)
• task: stabilize the LocalSet::id() (#​7776)

Changed

• net: deprecate {TcpStream,TcpSocket}::set_linger (#​7752)

Fixed

• macros: fix the hygiene issue of join! and try_join! (#​7766)
• runtime: revert "replace manual vtable definitions with Wake" (#​7699)
• sync: return TryRecvError::Disconnected from Receiver::try_recv after Receiver::close (#​7686)
• task: remove unnecessary trait bounds on the Debug implementation (#​7720)

Unstable

• fs: handle EINTR in fs::write for io-uring (#​7786)
• fs: support io-uring with tokio::fs::read (#​7696)
• runtime: disable io-uring on EPERM (#​7724)
• time: add alternative timer for better multicore scalability (#​7467)

Documented

• docs: fix a typos in bounded.rs and park.rs (#​7817)
• io: add SyncIoBridge cross-references to copy and copy_buf (#​7798)
• io: doc that AsyncWrite does not inherit from std::io::Write (#​7705)
• metrics: clarify that num_alive_tasks is not strongly consistent (#​7614)
• net: clarify the cancellation safety of the TcpStream::peek (#​7305)
• net: clarify the drop behavior of unix::OwnedWriteHalf (#​7742)
• net: clarify the platform-dependent backlog in TcpSocket docs (#​7738)
• runtime: mention LocalRuntime in new_current_thread docs (#​7820)
• sync: add missing period to mpsc::Sender::try_send docs (#​7721)
• sync: clarify the cancellation safety of oneshot::Receiver (#​7780)
• sync: improve the docs for the errors of mpsc (#​7722)
• task: add example for spawn_local usage on local runtime (#​7689)

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)

v1.47.4: Tokio v1.47.4

Compare Source

1.47.4 (April 2nd, 2026)

Fixed

• sync: fix panic in Chan::recv_many when called with non-empty vector on closed channel (#​7991)

v1.47.3

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v1.47.2

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v1.47.1: Tokio v1.47.1

Compare Source

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

Compare Source

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

Compare Source

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

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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)

v1.43.4

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v1.43.3

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v1.43.2: Tokio v1.43.2

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1.43.2 (August 1st, 2025)

Fixed

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

v1.43.1

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