[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tokio (source)	dependencies	minor	1.48.0 → 1.54.1

---

Release Notes

tokio-rs/tokio (tokio)

v1.54.1: Tokio v1.54.1

Compare Source

1.54.1 (October 21st, 2026)

Fixed

• time: revert "remove the runtime handle from timers" (#​8692)

v1.54.0: Tokio v1.54.0

Compare Source

1.54.0 (October 19th, 2026)

The 1.54.0 release includes all changes up to 1.53.3.

The MSRV is increased to 1.85. (#​8514)

Added

• fs: add File::set_times, File::set_modified, and fs::FileTimes (#​8504)
• net: implement Default for named_pipe::{ClientOptions, ServerOptions} (#​8378)
• runtime: add Builder::max_io_events_per_busy_tick (#​8410)
• runtime: stabilize tokio::runtime::worker_index() (#​8431)
• sync: add SemaphorePermit::semaphore() (#​8482)
• sync: add blocking_acquire methods to Semaphore (#​8269)
• sync: add watch::Receiver::is_closed (#​8481)
• wasm: support JSPI for Emscripten target (#​8285, #​8627)
• wasm: support the wasm32-unknown-emscripten target (#​8281, #​8422, #​8528, #​8628)

Changed

• fs: reject zero in File::set_max_buf_size (#​8449)
• io: make copy_buf cooperative (#​8459)
• io: panic when BufReader or BufStream is created with zero capacity (#​8494)
• io: panic when in-memory pipe is created with zero capacity (#​8397)
• io: reject zero buffer size in copy_bidirectional_with_sizes (#​8454)
• io: support vectored writes in Sink (#​8663)
• net: start UnixStream::pair and UnixDatagram::pair sockets as writable (#​8444)
• net: start accepted sockets as readable and writable (#​8435)
• net: support UCred on Fuchsia (#​8257)
• process: use mio::unix::pipe for Unix child stdio (#​8603)
• runtime: cache-pad the shared injection queue and idle state (#​8622)
• runtime: decide auto-boxing of spawned futures at monomorphization time (#​8414)
• runtime: make enable_io available whenever rt is enabled (#​8387)
• runtime: move block_in_place setup into a non-generic function (#​8315)
• runtime: move the multi-thread inject queue to its own mutex (#​8382)
• runtime: panic when max_io_events_per_tick is zero (#​8476)
• runtime: suggest .await in nested block_on panic message (#​8501)
• sync: avoid atomic reader count in broadcast slots (#​8357)
• sync: use acquire/release orderings in Notify (#​8325)
• time: remove the runtime handle from timers (#​8458)

Fixed

• fs: restore File internal state when op fails (#​8291)
• io: complete zero-length memory stream operations immediately (#​8323)
• io: flush the writer when the reader stalls in copy_buf (#​8424)
• io: keep the shutdown bit when clearing readiness (#​8435)
• io: preserve the full ScheduledIo tick in readiness events (#​8331)
• io: read lines as bytes so a partial line survives an I/O error (#​8400)
• io: retry on ErrorKind::Interrupted in more I/O operations (#​8417, #​8432, #​8448, #​8453, #​8455, #​8460)
• io: use spawn_mandatory_blocking for stdout and stderr (#​8506)
• io: wait for pending operations before BufReader seeks (#​8599)
• net: close CreateFileW handle on SetNamedPipeHandleState failure (#​8418)
• net: fix peer credentials on NetBSD (#​8589)
• net: saturate TcpSocket and UnixSocket listen backlog (#​8511)
• net: treat ENOTCONN as success in UnixStream::shutdown (#​8526)
• runtime: allow building with --all-features without tokio_unstable (#​8401)
• runtime: avoid overflow in shutdown_timeout() (#​8497)
• runtime: fix spawn_blocking hang when only scheduler workers exist (#​8408)
• runtime: fix misleading signal driver panic message (#​8419)
• sync: preserve FIFO lock order when coop budget is exhausted (#​8371)
• sync: use usize for permit count in SemaphorePermit (#​8405)
• time: avoid interval deadline overflow (#​8385)
• time: handle wrapped top-level timer-wheel slots (#​8334)

Unstable

• fs: fall back when io_uring has no IO driver (#​8165)
• metrics: cap log histogram precision (#​8496)
• runtime: add an opt-in sharded spawn_blocking queue (#​8337)
• runtime: expose schedule latency in task hooks (#​8282)
• taskdump: fix idle bookkeeping when a task dump wakes parked workers (#​8372)
• taskdump: skip non-idle tasks during taskdumps (#​8568)

Documented

• docs: fix stray braces and broken links in rustdoc (#​8605)
• fs: document cancellation behavior of tokio::fs (#​8265)
• net: add Safety docs for named pipe from_raw_handle (#​8378)
• net: document that TcpStream::connect returns only the last error (#​8421)
• runtime: add error documentation for runtime::Builder (#​8297)
• runtime: link available_parallelism in worker count docs (#​8625)
• sync: clarify panic behavior of broadcast::channel() (#​8420)
• sync: fix typo in Semaphore documentation (#​8521)

v1.53.3: Tokio v1.53.3

Compare Source

1.53.3 (October 13th, 2026)

Added

• io: add AsyncFd::register and AsyncFd::register_with_interest (#​8587)

Changed

• io: deprecate AsyncFd::{new, with_interest, try_new, try_with_interest} (#​8587)

Fixed

• io: wake and drop DuplexStream wakers outside the lock (#​8618)
• macros: avoid unreachable_code in join! and try_join! for Infallible (#​8518)
• runtime: fix paused time auto-advancing when I/O wakes a task on current_thread (#​8595)
• sync: wake waiters outside the lock when closing a semaphore (#​8529)
• test: fix several flaky tests (#​8196, #​8427, #​8609)

Fixed (unstable)

• rt: keep io_uring op alive when submission fails after push (#​8185)

v1.53.2: Tokio v1.53.2

Compare Source

1.53.2 (October 3rd, 2026)

Fixed

• fs: handle integer overflow in buffered relative seek (#​8574)
• io: revert "always cleanup AsyncFd registration list on deregister" (#​8540)
• process: unregister Windows wait before closing child handle (#​8564)
• rt: drop blocking pool mutex before shutting down rejected task (#​8562)
• sync: fix mpsc index wraparound in block reclamation (#​8546)
• sync: forget mpsc Permit before sending value (#​8560)
• sync: validate MAX_PERMITS in Semaphore::acquire (#​8548)
• sync: wake broadcast Sender::closed outside mutex (#​8558)
• task: drop replaced waker outside lock in JoinSet (#​8554)
• time: drop timer lock before dropping waker in clear_entry (#​8552)
• time: expire timers directly on shutdown without rotating wheel (#​8570)

Fixed (unstable)

• fs: clamp io_uring read length to u32::MAX (#​8572)
• rt: ignore current_thread task dumps from other runtimes (#​8544)
• rt: preserve io_uring context if a completion waker panics (#​8566)
• sync: fix semaphore use-after-free and permit leak on tracing panic (#​8542)
• taskdump: restore deferred leaf wakes during capture (#​8445)
• time: drop stored waker when cancelling alt timer entry (#​8550)

v1.53.1: Tokio v1.53.1

Compare Source

1.53.1 (July 20th, 2026)

Fixed

• signal: restore MSRV by removing OnceLock::wait from the Windows handler (#​8300)

Fixed (unstable)

• time: fix alt timer cancellation and insertion race (#​8252)

Documented

• runtime: remove dead link definition in Runtime::block_on (#​8301)

v1.53.0: Tokio v1.53.0

Compare Source

1.53.0 (July 17th, 2026)

Added

• fs: implement From<OwnedFd> and From<OwnedHandle> for File (#​8266)
• metrics: add task schedule latency metric (#​7986)
• net: add SocketAddr methods to Unix sockets (#​8144)

Changed

• io: add #[inline] to IO trait impls for in-memory types (#​8242)
• net: implement UCred::pid on FreeBSD (#​8086)
• net: support Nuttx target os (#​8259)
• signal: refactor global variables on Windows (#​8231)
• sync: mpsc::{Receiver,UnboundedReceiver} now drops waker on drop, even if there are still senders (#​8095)
• taskdump: support taskdumps on s390x (#​8192)
• time: add #[track_caller] to timeout_at() (#​8077)
• time: consolidate mutex locks on spurious poll (#​8124)
• time: defer waker clone on spurious poll (#​8107)
• time: move lazy-registration state into Sleep (#​8132)
• tracing: remove unnecessary span clone (#​8126)

Fixed

• io: do not treat zero-length reads as EOF in Chain (#​8251)
• net: use getpeereid for QNX peer credentials (#​8270)
• runtime: avoid illegal state in FastRand (#​8078)
• sync: wake mpsc receiver when a queued reserve[_many] returns permits (#​8260)
• taskdump: skip double wake on Trace::capture/Trace::trace_with (#​8043)
• time: avoid stack overflow in runtime constructor (#​8093)
• time (alt timer): ensure timers stay in the same runtime after .reset() (#​8169)

IO uring (unstable)

• fs: use io-uring for fs::try_exists (#​8080)
• fs: use io-uring for renaming files (#​7800)
• rt: flush io-uring CQE in case of CQE overflow (#​8277)

Documented

• docs: clarify cancel safety wording (#​8181)
• fs: clarify create_dir_all succeeds if path exists (#​8149)
• io: add warning about stdout reordering with multiple handles (#​8276)
• net: document pipe try_read*/try_write* readiness behavior (#​8032)
• runtime: document interaction with fork() (#​8202)
• sync: clarify broadcast lagging semantics (#​8239)
• sync: document memory ordering guarantees for Semaphore (#​8119)
• task: explain why yield_now defers its waker (#​8254)
• time: add panic docs to timeout_at() (#​8077)
• time: fix reversed poll order in timeout doc (#​8214)

v1.52.4: Tokio v1.52.4

Compare Source

1.52.4 (July 16th, 2026)

Fixed

• runtime: don't skip the driver when before_park schedules work (#​8222)

Fixed (unstable)

• taskdump: remove crate disambiguators from output (#​8264)

v1.52.3: Tokio v1.52.3

Compare Source

1.52.3 (May 8th, 2026)

Fixed

• sync: fix underflow in mpsc channel len() (#​8062)
• sync: notify receivers in mpsc OwnedPermit::release() method (#​8075)
• sync: require that an RwLock has max_readers != 0 (#​8076)
• sync: return Empty from try_recv() when mpsc is closed with outstanding permits (#​8074)

v1.52.2: Tokio v1.52.2

Compare Source

1.52.2 (May 4th, 2026)

This release reverts the LIFO slot stealing change introduced in 1.51.0 (#​7431), due to its performance impact. (#​8100)

v1.52.1: Tokio v1.52.1

Compare Source

1.52.1 (April 16th, 2026)

Fixed

• runtime: revert #​7757 to fix a regression that causes spawn_blocking to hang (#​8057)

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)

v1.51.6: Tokio v1.51.6

Compare Source

1.51.6 (October 13th, 2026)

Added

• io: add AsyncFd::register and AsyncFd::register_with_interest (#​8587)

Changed

• io: deprecate AsyncFd::{new, with_interest, try_new, try_with_interest} (#​8587)

Fixed

• io: wake and drop DuplexStream wakers outside the lock (#​8618)
• macros: avoid unreachable_code in join! and try_join! for Infallible (#​8518)
• runtime: fix paused time auto-advancing when I/O wakes a task on current_thread (#​8595)
• sync: wake waiters outside the lock when closing a semaphore (#​8529)
• test: fix several flaky tests (#​8196, #​8427, #​8609)

v1.51.5: Tokio v1.51.5

Compare Source

1.51.5 (October 3rd, 2026)

Fixed

• fs: handle integer overflow in buffered relative seek (#​8574)
• io: revert "always cleanup AsyncFd registration list on deregister" (#​8540)
• process: unregister Windows wait before closing child handle (#​8564)
• rt: drop blocking pool mutex before shutting down rejected task (#​8562)
• sync: fix mpsc index wraparound in block reclamation (#​8546)
• sync: forget mpsc Permit before sending value (#​8560)
• sync: validate MAX_PERMITS in Semaphore::acquire (#​8548)
• sync: wake broadcast Sender::closed outside mutex (#​8558)
• task: drop replaced waker outside lock in JoinSet (#​8554)
• time: drop timer lock before dropping waker in clear_entry (#​8552)
• time: expire timers directly on shutdown without rotating wheel (#​8570)

Fixed (unstable)

• rt: ignore current_thread task dumps from other runtimes (#​8544)
• rt: preserve io_uring context if a completion waker panics (#​8566)
• sync: fix semaphore use-after-free and permit leak on tracing panic (#​8542)
• time: drop stored waker when cancelling alt timer entry (#​8550)

v1.51.4: Tokio v1.51.4

Compare Source

1.51.4 (July 16th, 2026)

Fixed

• runtime: don't skip the driver when before_park schedules work (#​8222)

v1.51.3: Tokio v1.51.3

Compare Source

1.51.3 (May 8th, 2026)

Fixed

• sync: fix underflow in mpsc channel len() (#​8062)
• sync: notify receivers in mpsc OwnedPermit::release() method (#​8075)
• sync: require that an RwLock has max_readers != 0 (#​8076)
• sync: return Empty from try_recv() when mpsc is closed with outstanding permits (#​8074)

v1.51.2: Tokio v1.51.1

Compare Source

1.51.2 (May 4th, 2026)

This release reverts the LIFO slot stealing change introduced in 1.51.0 (#​7431), due to its performance impact. (#​8100)

v1.51.1: Tokio v1.51.1

Compare Source

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

Compare Source

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

Compare Source

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

Compare Source

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)

---

Configuration

📅 Schedule: (in timezone Asia/Tokyo)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.