v0.25.8

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Re-release of 0.25.7

Fixes:

• Reverted a signature change to load_from_memory that lead to large scale
  type inference breakage despite being technically compatible.
• Color conversion Luma to Rgb used incorrect coefficients instead of broadcasting.

v0.25.7

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Features:

• Added an API for external image format implementations to register themselves as decoders for a specific format in image (#​2372)
• Added CICP awarenes via moxcms to support color spaces (#​2531). The support for transforming is limited for now and will be gradually expanded.
• You can now embed Exif metadata when writing JPEG, PNG and WebP images (#​2537, #​2539)
• Added functions to extract orientation from Exif metadata and optionally clear it in the Exif chunk (#​2484)
• Serde support for more types (#​2445)
• PNM encoder now supports writing 16-bit images (#​2431)

Structural changes:

• Increased MSRV to 1.85.0 (from 1.78.0)

API improvements:

• save, save_with_format, write_to and write_with_encoder methods on DynamicImage now automatically convert the pixel format when necessary instead of returning an error (#​2501)
• Added DynamicImage::has_alpha() convenience method
• Implemented TryFrom<ExtendedColorType> for ColorType (#​2444)
• Added const HAS_ALPHA to trait Pixel
• Unified the error for unsupported encoder colors (#​2543)
• Added a hooks module to customize builtin behavior, register_format_detection_hook and register_decoding_hook for the determining format of a file and selecting an ImageDecoder implementation respectively. (#​2372)

Performance improvements:

• Gaussian blur (#​2496) and box blur (#​2515) are now faster
• Improve compilation times by avoiding unnecessary instantiation of generic functions (#​2468, #​2470)

Bug fixes:

• Many improvements to image format decoding: TIFF, WebP, AVIF, PNG, GIF, BMP, TGA
• Fixed GifEncoder::encode() ignoring the speed parameter and always using the slowest speed (#​2504)
• .pnm is now recognized as a file extension for the PNM format (#​2559)

v0.25.6

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Features:

• Improved format detection (#​2418)
• Implement writing ICC profiles for JPEG and PNG images (#​2389)

Bug fixes:

• JPEG encoding bugfix (#​2387)
• Expanded ICO format detection (#​2434)
• Fixed EXR bug with NaNs (#​2381)
• Various documentation improvements

v0.25.5

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Features:

• Added support for decoding 10-bit and 12-bit AVIF
• Initial, opt-in serde support for an enum. This may be extended to other types in the future.

Bug fixes:

• Multiple bug fixes in AVIF decoding
• The rayon feature now correctly toggles the use of rayon when encoding AVIF. (Previously it would be either always on or always off depending on the version of the ravif crate in your dependency tree.)
• "jfif" file extension for JPEG images is now recognized

v0.25.4

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Features:

• Much faster decoding of lossless WebP due to a variety of optimizations. Our benchmarks show 2x to 2.5x improvement.
• Added support for orientation metadata, so that e.g. smartphone camera images could be displayed correctly:
  • Added ImageDecoder::orientation() and implemented orientation metadata extraction for JPEG, WebP and TIFF formats
  • Added DynamicImage::apply_orientation() to apply the orientation to an image
• Added support for extracting Exif metadata from images via ImageDecoder::exif_metadata(), and implemented it for JPEG and WebP formats
• Added ImageEncoder::set_icc_profile() and implemented it for WebP format. Pull requests with implementations for other formats are welcome.
• Added DynamicImage::fast_blur() for a linear-time approximation of Gaussian blur, which is much faster at larger blur radii

Bug fixes:

• Fixed some APNG images being decoded incorrectly
• Fixed the iterator over animated WebP frames to return None instead of an error when the end of the animation is reached

v1.21.3

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• Outline more initialization in race: #​284,
  #​285.

v1.21.2

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• Relax success ordering from AcqRel to Release in race: #​278.

v1.21.1

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• Reduce MSRV to 1.65: #​277.

v1.21.0

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• Outline initialization in race: #​273.
• Add OnceNonZereUsize::get_unchecked: #​274.
• Add OnceBox::clone and OnceBox::with_value: #​275.
• Increase MSRV to 1.70

v1.20.3

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v1.0.228

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• Allow building documentation with RUSTDOCFLAGS='--cfg=docsrs' set for the whole dependency graph (#​2995)

v1.0.227

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• Documentation improvements (#​2991)

v1.0.226

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• Deduplicate variant matching logic inside generated Deserialize impl for adjacently tagged enums (#​2935, thanks @​Mingun)

v1.0.225

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• Avoid triggering a deprecation warning in derived Serialize and Deserialize impls for a data structure that contains its own deprecations (#​2879, thanks @​rcrisanti)

v1.0.224

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• Remove private types being suggested in rustc diagnostics (#​2979)

v1.0.223

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• Fix serde_core documentation links (#​2978)

v1.0.222

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• Make serialize_with attribute produce code that works if respanned to 2024 edition (#​2950, thanks @​aytey)

v1.0.221

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• Documentation improvements (#​2973)
• Deprecate serde_if_integer128! macro (#​2975)

v1.0.220

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• Add a way for data formats to depend on serde traits without waiting for serde_derive compilation: https://docs.rs/serde_core (#​2608, thanks @​osiewicz)

v1.0.219

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• Prevent absolute_paths Clippy restriction being triggered inside macro-generated code (#​2906, thanks @​davidzeng0)

v1.0.218

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• Documentation improvements

v1.0.217

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• Support serializing externally tagged unit variant inside flattened field (#​2786, thanks @​Mingun)

v1.0.216

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• Mark all generated impls with #[automatically_derived] to exclude from code coverage (#​2866, #​2868, thanks @​tdittr)

v1.0.215

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• Produce warning when multiple fields or variants have the same deserialization name (#​2855, #​2856, #​2857)

v1.0.214

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• Implement IntoDeserializer for all Deserializers in serde::de::value module (#​2568, thanks @​Mingun)

v1.0.145

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• Raise serde version requirement to >=1.0.220

v1.0.144

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• Switch serde dependency to serde_core (#​1285)

v1.0.143

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• Implement Clone and Debug for serde_json::Map iterators (#​1264, thanks @​xlambein)
• Implement Default for CompactFormatter (#​1268, thanks @​SOF3)
• Implement FromStr for serde_json::Map (#​1271, thanks @​mickvangelderen)

v1.0.142

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• impl Default for &Value (#​1265, thanks @​aatifsyed)

v1.0.141

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• Optimize string escaping during serialization (#​1273, thanks @​conradludgate)

v1.0.140

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• Documentation improvements

v1.0.139

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• Documentation improvements

v1.0.138

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• Documentation improvements

v1.0.137

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• Turn on "float_roundtrip" and "unbounded_depth" features for serde_json in play.rust-lang.org (#​1231)

v1.0.136

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• Optimize serde_json::value::Serializer::serialize_map by using Map::with_capacity (#​1230, thanks @​goffrie)

v1.0.135

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• Add serde_json::Map::into_values method (#​1226, thanks @​tisonkun)

v1.0.134

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• Add RawValue associated constants for literal null, true, false (#​1221, thanks @​bheylin)

v1.0.133

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• Implement From<[T; N]> for serde_json::Value (#​1215)

v1.48.0: Tokio v1.48.0

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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

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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

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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

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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

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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

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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)

v1.43.3

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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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v1.43.0: Tokio v1.43.0

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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

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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

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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

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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)

v0.22.0

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• [Breaking][MSRV] MSRV bumped to 1.85.0
• port to edition 2024
• bump virtuaally each and every dependency
• (wip, experimental) cuda support for llm

v0.21.13

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v0.21.12

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• multithread matmul is feature gated now ("multithread-mm" on linal)
• full hand made arm64 f32-accumulator matmul kit
• more auditing improvment around einsum and its matmul translations
• bugfix in matmul translation and gather
• more test-rt-level coverage of low-level matmuls (metal and cpu)
• memory arena improvements (metal)
• q40 for convolution weights

v0.21.11

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• [cli] augment audit capabilities for mm implementation choices
• revisit matmul kernel selection
• improve gather with compressed inputs
• revisit slice bubbling up to unlock optimisations
• fix a bug around flipping substractions
• support for left q40 input in arm64 f32 accumulating kernels (unlocks q40f32 compression on arm64)

v0.21.10

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• WIP llm testability (--approx-custom)
• [metal] ggml-ported kernels
• WIP einsum-to-matmul testability
• optimisation around reduce impacting some modern/exotic normalisation layers
• WIP towards better handling of shared weights (e.g. embeddings duplication)

v0.21.9

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• [metal] experimental profile
• [cpu] new versatile (mmm/mmmv) kernels combinations for various architectures
• [metal] scaled-masked-softmax detector and impl

v0.21.8

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• [linalg, compression] introduce mmm kits
• [linalg] (wip) rework f16 on non-f16 machines
• [linalg] element-wise binary operators optimisation
• [core, compression] gather with compressed weights
• [metal] new kernels
• [metal] new memory management
• [nnef] opt-in deterministic tar encoding