v1.0.79

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• Work around improperly cached build script result by sccache (#​340)

v1.0.78

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• Reduce spurious rebuilds under RustRover IDE when using a nightly toolchain (#​337)

v1.0.77

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• Make anyhow::Error::backtrace available on stable Rust compilers 1.65+ (#​293, thanks @​LukasKalbertodt)

v1.0.76

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• Opt in to unsafe_op_in_unsafe_fn lint (#​329)

v1.9.0

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• Fix a bug where WeakSender/WeakReceiver could incorrectly return Some even if the channel is already closed (#​60)
• Remove the unnecessary T: Clone bound from WeakSender/WeakReceiver's Clone implementation (#​62)

v1.0.195

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• Prevent remote definitions of tuple struct or tuple variant from triggering dead_code warning (#​2671)

v1.0.194

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• Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache

v1.0.193

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• Fix field names used for the deserialization of RangeFrom and RangeTo (#​2653, #​2654, #​2655, thanks @​emilbonnek)

v1.0.192

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• Allow internal tag field in untagged variant (#​2646, thanks @​robsdedude)

v1.0.191

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• Documentation improvements

v1.0.190

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• Preserve NaN sign when deserializing f32 from f64 or vice versa (#​2637)

v1.0.189

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• Fix "cannot infer type" error when internally tagged enum contains untagged variant (#​2613, thanks @​ahl)

v1.0.188

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• Fix "failed to parse manifest" error when building serde using a Cargo version between 1.45 and 1.50 (#​2603)

v1.0.187

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• Remove support for Emscripten targets on rustc older than 1.40 (#​2600)

v1.0.186

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• Disallow incompatible versions of serde_derive and serde in the dependency graph (#​2588, thanks @​soqb)

v1.0.185

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• Fix error "cannot move out of *self which is behind a shared reference" deriving Serialize on a non_exhaustive enum (#​2591)

v1.0.184

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• Restore from-source serde_derive build on all platforms — eventually we'd like to use a first-class precompiled macro if such a thing becomes supported by cargo / crates.io

v1.0.183

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• Support deserializing Box<OsStr> with an equivalent representation as OsString (#​2556, thanks @​DBLouis)

v1.0.182

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• Render field aliases in sorted order in error messages (#​2458, thanks @​Mingun)
• Support serde(default) on tuple structs (#​2553, thanks @​Mingun)

v1.0.181

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• Make serde(alias) work in combination with flatten when using in-place deserialization (#​2443, thanks @​Mingun)
• Improve the representation of adjacently tagged enums in formats where enum tags are serialized by index, as opposed to by string name (#​2505, #​2496, thanks @​Baptistemontan)

v1.0.180

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• Update to 2018 edition

v1.0.179

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• Support serialization of tuple variants inside a flattened field (#​2448, thanks @​Mingun)

v1.0.178

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• Fix build error when using serde with "std" feature turned off and "unstable" feature turned on (#​2541)

v1.0.177

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• Add serde(rename_all_fields = "...") attribute to apply a rename_all on every struct variant of an enum (#​1695, thanks @​jplatte)
• Improve diagnostics for attribute parse errors (#​2536, thanks @​jplatte)

v1.0.176

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• Allow tag field of an internally tagged enum to have same name as a field inside a skipped struct variant (#​2266, thanks @​flisky)

v1.0.175

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• Restore missing LICENSE files in serde_derive crate (#​2527, thanks @​ankane)

v1.0.174

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• Documentation improvements

v1.0.173

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• Fix missing trait implementations when using serde derive macro on a macro-generated data structure, such as via the bitflags crate (#​2516)

v1.0.172

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• Experiment with precompiling the serde_derive macros to reduce build time (#​2514)

v1.0.171

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• Support derive(Deserialize) on unit structs that have const generics (#​2500, thanks @​Baptistemontan)

v1.0.170

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• Produce error message on suffixed string literals inside serde attributes (#​2242)
• Support single identifier as unbraced default value for const generic parameter (#​2449)

v1.0.169

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• Add Deserializer::deserialize_identifier support for adjacently tagged enums (#​2475, thanks @​Baptistemontan)
• Fix unused_braces lint in generated Deserialize impl that uses braced const generic expressions (#​2414)

v1.0.168

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• Allow serde::de::IgnoredAny to be the type for a serde(flatten) field (#​2436, thanks @​Mingun)
• Allow larger preallocated capacity for smaller elements (#​2494)

v1.0.167

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• Add serialize and deserialize impls for RangeFrom and RangeTo (#​2471, thanks @​tbu-)

v1.0.166

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• Add no-alloc category to crates.io metadata

v1.0.165

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• Fix incorrect count of fields passed to tuple deserialization methods when using serde(skip_deserializing) attributes (#​2466, thanks @​Mingun)
• Fix -Zminimal-versions build

v1.0.164

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• Allowed enum variants to be individually marked as untagged (#​2403, thanks @​dewert99)

v1.0.163

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• Eliminate build script from serde_derive crate to slightly reduce build time (#​2442, thanks @​taiki-e)

v1.0.162

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• Support deserializing flattened adjacently tagged enums from data formats which represent fields as bytes, such as the csv crate (#​2377, thanks @​mfro)

  #[derive(Deserialize)]
  pub struct Record {
      common: u64,
      #[serde(flatten)]
      kind: Kind,
  }
  
  #[derive(Deserialize)]
  #[serde(tag = "kind", content = "parameter", rename_all = "lowercase")]
  enum Kind {
      Foo(u64),
      Bar(bool),
  }

  common,kind,parameter
  1,foo,42
  2,bar,true

v1.0.161

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• Improve error messages produced by serde_test on test failure (#​2435, thanks @​Mingun)

v1.0.160

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• Make derived serializer/deserializer internals doc(hidden) (#​2426, thanks @​compiler-errors)

v1.0.159

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• Accept empty #[serde()] attribute (#​2422)

v1.0.111

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• Improve floating point parsing performance on loongarch64 (#​1100, thanks @​heiher)

v1.0.110

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v1.0.109

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• Documentation improvements

v1.0.108

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• Documentation improvements (#​1075, #​1081, #​1082, thanks @​dimo414 and @​fritzrehde)

v1.0.107

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• impl IntoDeserializer for &RawValue (#​1071)

v1.0.106

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• Add Value::as_number accessor (#​1069, thanks @​chanced)
• Add Number::as_str accessor under "arbitrary_precision" feature (#​1067, thanks @​chanced)

v1.0.105

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• Support bool in map keys (#​1054)

v1.0.104

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• Provide IntoDeserializer impl for &serde_json::Value (#​1045, thanks @​ZetaNumbers)

v1.0.103

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• Documentation improvements

v1.0.102

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• Add a way to customize the serialization of byte arrays (#​1039)

v1.0.101

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• Allow f32 and f64 as keys in maps (#​1027, thanks @​overdrivenpotato)

v1.0.100

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• Support -Z minimal-versions

v1.0.99

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• Support serializing serde's option type in a map key (#​1030, thanks @​LPGhatguy)

v1.0.98

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• Update indexmap dependency used by "preserve_order" feature to version 2

v1.0.97

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• Add io_error_kind() method to serde_json::Error: fn io_error_kind(&self) -> Option<std::io::ErrorKind> (#​1026)

v1.0.96

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• Guarantee that to_writer only writes valid UTF-8 strings (#​1011, thanks @​stepancheg)

v1.0.95

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• Preserve f32 precision when serializing f32 -> serde_json::Value -> JSON string in "arbitrary_precision" mode (#​1004, #​1005)

v3.9.0

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• Updates windows-sys to 0.52
• Updates minimum rustix version to 0.38.25

v3.8.1

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• Update rustix to fix a potential panic on persist_noclobber on android.
• Update redox_syscall to 0.4 (on redox).
• Fix some docs typos.

v1.0.56

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• Update proc-macro2 to fix caching issue when using a rustc-wrapper such as sccache

v1.0.55

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• Work around improperly cached build script result by sccache – second attempt (#​280)

v1.0.54

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• Work around improperly cached build script result by sccache – first attempt (#​279)

v1.0.53

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• Reduce spurious rebuilds under RustRover IDE when using a nightly toolchain (#​270)

v1.0.52

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• Fix interaction with RUSTC_BOOTSTRAP (#​269)

v1.0.51

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• Improve diagnostics when an invalid attribute previously caused thiserror to generate no Error impl (#​266)

v1.0.50

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• Improve diagnostic when a #[source], #[from], or #[transparant] attribute refers to a type that has no std::error::Error impl (#​258, thanks @​de-vri-es)

v1.0.49

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• Access libcore types through ::core in generated code (#​255, thanks @​mina86)

v1.0.48

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• Improve implementation of displaying Path values in a generated Display impl (#​251, thanks @​mina86)

v1.0.47

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• Work around rust-analyzer bug (https://github.com/rust-lang/rust-analyzer/issues/9911)

v1.0.46

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• Add bootstrap workaround to allow rustc to depend on thiserror (#​248, thanks @​RalfJung)

v1.0.45

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• Update backtrace support to nightly's new Error::provide API (https://github.com/rust-lang/rust/pull/113464, #​246)

v1.0.44

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• Documentation improvements

v1.0.43

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v1.0.42

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• Fix compile error in derived Display impl if there was a nonstandard write! macro in scope (#​239)

v1.0.41

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v1.35.1: Tokio v1.35.1

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1.35.1 (December 19, 2023)

This is a forward part of a change that was backported to 1.25.3.

Fixed

• io: add budgeting to tokio::runtime::io::registration::async_io (#​6221)

v1.35.0: Tokio v1.35.0

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1.35.0 (December 8th, 2023)

Added

• net: add Apple watchOS support (#​6176)

Changed

• io: drop the Sized requirements from AsyncReadExt.read_buf (#​6169)
• runtime: make Runtime unwind safe (#​6189)
• runtime: reduce the lock contention in task spawn (#​6001)
• tokio: update nix dependency to 0.27.1 (#​6190)

Fixed

• chore: make --cfg docsrs work without net feature (#​6166)
• chore: use relaxed load for unsync_load on miri (#​6179)
• runtime: handle missing context on wake (#​6148)
• taskdump: fix taskdump cargo config example (#​6150)
• taskdump: skip notified tasks during taskdumps (#​6194)
• tracing: avoid creating resource spans with current parent, use a None parent instead (#​6107)
• tracing: make task span explicit root (#​6158)

Documented

• io: flush in AsyncWriteExt examples (#​6149)
• runtime: document fairness guarantees and current behavior (#​6145)
• task: document cancel safety of LocalSet::run_until (#​6147)

v1.34.0: Tokio v1.34.0

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Fixed

• io: allow clear_readiness after io driver shutdown (#​6067)
• io: fix integer overflow in take (#​6080)
• io: fix I/O resource hang (#​6134)
• sync: fix broadcast::channel link (#​6100)

Changed

• macros: use ::core qualified imports instead of ::std inside tokio::test macro (#​5973)

Added

• fs: update cfg attr in fs::read_dir to include aix (#​6075)
• sync: add mpsc::Receiver::recv_many (#​6010)
• tokio: added vita target support (#​6094)

v1.33.0: Tokio v1.33.0

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1.33.0 (October 9, 2023)

Fixed

• io: mark Interest::add with #[must_use] (#​6037)
• runtime: fix cache line size for RISC-V (#​5994)
• sync: prevent lock poisoning in watch::Receiver::wait_for (#​6021)
• task: fix spawn_local source location (#​5984)

Changed

• sync: use Acquire/Release orderings instead of SeqCst in watch (#​6018)

Added

• fs: add vectored writes to tokio::fs::File (#​5958)
• io: add Interest::remove method (#​5906)
• io: add vectored writes to DuplexStream (#​5985)
• net: add Apple tvOS support (#​6045)
• sync: add ?Sized bound to {MutexGuard,OwnedMutexGuard}::map (#​5997)
• sync: add watch::Receiver::mark_unseen (#​5962, #​6014, #​6017)
• sync: add watch::Sender::new (#​5998)
• sync: add const fn OnceCell::from_value (#​5903)

Removed

• remove unused stats feature (#​5952)

Documented

• add missing backticks in code examples (#​5938, #​6056)
• fix typos (#​5988, #​6030)
• process: document that Child::wait is cancel safe (#​5977)
• sync: add examples for Semaphore (#​5939, #​5956, #​5978, #​6031, #​6032, #​6050)
• sync: document that broadcast capacity is a lower bound (#​6042)
• sync: document that const_new is not instrumented (#​6002)
• sync: improve cancel-safety documentation for mpsc::Sender::send (#​5947)
• sync: improve docs for watch channel (#​5954)
• taskdump: render taskdump documentation on docs.rs (#​5972)

Unstable

• taskdump: fix potential deadlock (#​6036)

v1.32.1: Tokio v1.32.1

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1.32.1 (December 19, 2023)

This is a forward part of a change that was backported to 1.25.3.

Fixed

• io: add budgeting to tokio::runtime::io::registration::async_io (#​6221)

v1.32.0: Tokio v1.32.0

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Fixed

• sync: fix potential quadratic behavior in broadcast::Receiver (#​5925)

Added

• process: stabilize Command::raw_arg (#​5930)
• io: enable awaiting error readiness (#​5781)

Unstable

• rt(alt): improve the scalability of alt runtime as the number of cores grows (#​5935)

v1.31.0: Tokio v1.31.0

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Fixed

• io: delegate WriteHalf::poll_write_vectored (#​5914)

Unstable

• rt(unstable): fix memory leak in unstable next-gen scheduler prototype (#​5911)
• rt: expose mean task poll time metric (#​5927)

v1.30.0: Tokio v1.30.0

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1.30.0 (August 9, 2023)

This release bumps the MSRV of Tokio to 1.63. (#​5887)

Changed

• tokio: reduce LLVM code generation (#​5859)
• io: support --cfg mio_unsupported_force_poll_poll flag (#​5881)
• sync: make const_new methods always available (#​5885)
• sync: avoid false sharing in mpsc channel (#​5829)
• rt: pop at least one task from inject queue (#​5908)

Added

• sync: add broadcast::Sender::new (#​5824)
• net: implement UCred for espidf (#​5868)
• fs: add File::options() (#​5869)
• time: implement extra reset variants for Interval (#​5878)
• process: add {ChildStd*}::into_owned_{fd, handle} (#​5899)

Removed

• tokio: removed unused tokio_* cfgs (#​5890)
• remove build script to speed up compilation (#​5887)

Documented

• sync: mention lagging in docs for broadcast::send (#​5820)
• runtime: expand on sharing runtime docs (#​5858)
• io: use vec in example for AsyncReadExt::read_exact (#​5863)
• time: mark Sleep as !Unpin in docs (#​5916)
• process: fix raw_arg not showing up in docs (#​5865)

Unstable

• rt: add runtime ID (#​5864)
• rt: initial implementation of new threaded runtime (#​5823)

v1.29.1: Tokio v1.29.1

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Fixed

• rt: fix nesting two block_in_place with a block_on between (#​5837)

v1.29.0: Tokio v1.29.0

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Technically a breaking change, the Send implementation is removed from
runtime::EnterGuard. This change fixes a bug and should not impact most users.

Breaking

• rt: EnterGuard should not be Send (#​5766)

Fixed

• fs: reduce blocking ops in fs::read_dir (#​5653)
• rt: fix possible starvation (#​5686, #​5712)
• rt: fix stacked borrows issue in JoinSet (#​5693)
• rt: panic if EnterGuard dropped incorrect order (#​5772)
• time: do not overflow to signal value (#​5710)
• fs: wait for in-flight ops before cloning File (#​5803)

Changed

• rt: reduce time to poll tasks scheduled from outside the runtime (#​5705, #​5720)

Added

• net: add uds doc alias for unix sockets (#​5659)
• rt: add metric for number of tasks (#​5628)
• sync: implement more traits for channel errors (#​5666)
• net: add nodelay methods on TcpSocket (#​5672)
• sync: add broadcast::Receiver::blocking_recv (#​5690)
• process: add raw_arg method to Command (#​5704)
• io: support PRIORITY epoll events (#​5566)
• task: add JoinSet::poll_join_next (#​5721)
• net: add support for Redox OS (#​5790)

Unstable

• rt: add the ability to dump task backtraces (#​5608, #​5676, #​5708, #​5717)
• rt: instrument task poll times with a histogram (#​5685)

v1.28.2: Tokio v1.28.2

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1.28.2 (May 28, 2023)

Forward ports 1.18.6 changes.

Fixed

• deps: disable default features for mio (#​5728)